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  • Oxford University Press  (145,997)
  • American Meteorological Society
  • 2010-2014  (88,811)
  • 2000-2004  (44,162)
  • 1995-1999  (38,269)
Collection
Years
Year
  • 1
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Philosophy, Introductions.
    Notes: Mind -- Knowledge -- Language -- Science -- Morality -- Politics -- Law -- Metaphysics -- Philosophy
    Pages: xviii, 412 p.
    ISBN: 0-19-518393-2
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  • 2
    Unknown
    New York : Oxford University Press
    Keywords: Anti-globalization movement. ; Globalization, Economic aspects. ; Globalization, Social aspects.
    Notes: I. Coping with anti-globalization -- 1. Anti-globalization: why? -- 2. Globalization: socially, not just economically, benign -- 3. Globalization is good but not good enough -- 4. Non-government organizations -- II. Globalization's human face: trade and corporations -- 5. Poverty: enhanced or diminished? -- 6. Child labor: increased or reduced? -- 7. Women: harmed or helped? -- 8. Democracy at bay? -- 9. Culture imperiled or enriched? -- 10. Wages and labor standards at stake? -- 11. Environment in peril? -- 12. Corporations: predatory or beneficial? -- III. Other dimensions of globalization -- 13. The perils of Gung-Ho International Financial capitalism -- 14. International flows of humanity -- IV. Appropriate governance: making globalization work better -- 15. Appropriate governance: an overview -- 16. Coping with downsides -- 17. Accelerating the achievement of social agendas -- 18. Managing transitions: optimal, not maximal, speed -- V. In conclusion -- 19. And so, let us begin anew
    Pages: xi, 308 p.
    ISBN: 0-19-530391-1
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  • 3
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Affect (Psychology) ; Electronic books ; Emotions
    Pages: xvii, 1199 p.
    ISBN: 0-19-530205-2
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  • 4
    Unknown
    New York : Oxford University Press
    Religion in America series  
    Keywords: Edwards, Jonathan,, 1703-1758.
    Pages: xii, 194 p.
    ISBN: 0-585-30895-0
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  • 5
    Unknown
    New York : Oxford University Press
    Keywords: Truth.
    Pages: ix, 268 p.
    ISBN: 0-585-32455-7
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  • 6
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Occom, Samson,, 1723-1792. ; African Americans in literature. ; African Americans, Intellectual life. ; American literature, African American authors, History and criticism. ; American literature, Indian authors, History and criticism. ; American literature, 1783-1850, History and criticism. ; American literature, Colonial period, ca. 1600-1775, History and criticism. ; American literature, Revolution, 1775-1783, History and criticism. ; Christian literature, American, History and criticism. ; Christianity and literature, United States, History, 18th century. ; Hymns, English, United States, History and criticism. ; Indians in literature. ; Indians of North America, Intellectual life.
    Pages: vi, 255 p.
    ISBN: 0-19-518567-6
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  • 7
    Unknown
    New York : Oxford University Press
    Keywords: United States, Social policy. ; Public welfare, United States, History.
    Pages: 210 p.
    ISBN: 0-585-35667-X
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  • 8
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Autobiographical memory. ; Brain, physiology. ; Emotions. ; Emotions, physiology. ; Memory, physiology. ; Mental Disorders, psychology. ; Psychiatry. ; Psychophysiology.
    Notes: Memory for emotional events / Daniel Reisberg and Friderike Heuer -- The neuroanatomy of emotional memory in humans / Tony W. Buchanan and Ralph Adolphs -- The biopsychology of trauma and memory / Jessica D. Payne ... [et al.] -- Forgetting trauma? / Richard J. McNally, Susan A. Clancy, and Heidi M. Barrett -- Selective memory effects in anxiety disorders : an overview of research findings and their implications / Colin MacLeod and Andrew Mathews -- Memory for emotional and nonemotional events in depression : a question of habit? / Paula Hertel -- Emotion, memory, and conscious awareness in schizophrenia / Jean-Marie Danion ... [et al.] -- Children's memories of emotional events / Robyn Fivush and Jessica McDermott Sales -- Aging and emotional memory / Mara Mather -- Emotion and eyewitness memory / Robin S. Edelstein ... [et al.] -- Emotional memory in survivors of the Holocaust : a qualitative study of oral testimony / Robert N. Kraft
    Pages: xiv, 413 p.
    ISBN: 0-19-518650-8
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  • 9
    Unknown
    New York : Oxford University Press
    Oxford paperback reference  
    Keywords: Christian saints, Biography, Dictionaries. ; Christian saints, Great Britain, Biography, Dictionaries. ; Christian saints, Ireland, Biography, Dictionaries. ; Saints chrétiens, Biographies, Dictionnaires anglais. ; Saints chrétiens, Grande-Bretagne, Biographies, Dictionnaires anglais. ; Saints chrétiens, Irlande, Biographies, Dictionnaires anglais.
    Pages: xxv, 547 p.
    Edition: 4th ed
    ISBN: 0-585-11034-4
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  • 10
    Unknown
    New York : Oxford University Press
    Religion in America series  
    Keywords: Evangelicalism, History. ; Religion and science, History.
    Notes: The history of science and religion : some evangelical dimensions / John Hedley Brooke -- The Puritan thesis revisited / John Morgan -- Christianity and early modern science : the Foster thesis reconsidered / Edward B. Davis -- Science, theology, and society : from Cotton Mather to William Jennings Bryan / Mark A. Noll -- Science and evangelical theology in Britain from Wesley to Orr / David W. Bebbington -- Science, natural theology, and evangelicalism in early nineteenth-century Scotland : Thomas Chalmers and the Evidence controversy / Jonathan R. Topham -- Scriptural geology in America / Rodney L. Stiling -- Situating evangelical responses to evolution / David N. Livingstone -- Telling tales : evangelicals and the Darwin legend / James Moore -- Creating creationism : meanings and uses since the age of Agassiz / Ronald L. Numbers -- A sign for an unbelieving age : evangelicals and the search for Noah's ark / Larry Eskridge -- "The science of duty" : moral philosophy and the epistemology of science in nineteenth-century America / Allen C. Guelzo -- Toward a Christian social science in Canada, 1890-1930 / Michael Gauvreau and Nancy Christie -- Evangelicals, Biblical scholarship, and the politics of the modern American academy / D.G. Hart -- The meaning of science for Christians : a new dialogue on Olympus / George Marsden
    Pages: vi, 351 p.
    ISBN: 0-585-18275-2
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  • 11
    Keywords: Europe, Intellectual life, 18th century. ; Europe, Intellectual life, 19th century. ; Europe, Vie intellectuelle, 18e siècle. ; Europe, Vie intellectuelle, 19e siècle. ; Enlightenment. ; Information resources, Europe, History, 18th century. ; Information resources, Europe, History, 19th century. ; Learning and scholarship, Europe, History, 18th century. ; Learning and scholarship, Europe, History, 19th century. ; Savoir et érudition, Europe, Histoire, 18e siècle. ; Savoir et érudition, Europe, Histoire, 19e siècle. ; Siècle des lumières. ; Sources d'information, Europe, Histoire, 18e siècle. ; Sources d'information, Europe, Histoire, 19e siècle.
    Pages: viii, 246 p.
    ISBN: 0-19-518040-2
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  • 12
    Unknown
    Oxford [England] ; New York : Oxford University Press
    American classical studies  
    Keywords: Greece, History, To 146 B.C. ; Grèce, Histoire, Jusqu'à 146 av. J.-C. ; Rome, Histoire. ; Rome, History. ; Civilisation ancienne. ; Civilization, Classical.
    Pages: xi, 151 p.
    ISBN: 0-19-518490-4
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  • 13
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Police, Europe, Histoire. ; Police, Europe, History. ; Police, Europe, History, 19th century. ; Police, France, Histoire. ; Police, France, History.
    Pages: x, 288 p.
    ISBN: 0-585-48633-6
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  • 14
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Angleterre, Mœurs et coutumes, 17e siècle. ; Angleterre, Mœurs et coutumes, 18e siècle. ; Angleterre, Mœurs et coutumes, 19e siècle. ; England, Social life and customs, 17th century. ; England, Social life and customs, 17th century. ; England, Social life and customs, 18th century. ; England, Social life and customs, 19th century. ; Anglais dans la littérature. ; Anglais, Histoire. ; English literature, History and criticism. ; Littérature anglaise, Histoire et critique. ; National characteristics, English, in literature. ; National characteristics, English, History.
    Notes: Energy -- Candour -- Decency -- Taciturnity -- Reserve -- Eccentricity -- Manners and character
    Pages: x, 389 p.
    ISBN: 0-585-48625-5
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  • 15
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Central America, Politics and government. ; Political violence, Central America, History. ; State-sponsored terrorism, Central America, History.
    Notes: Part 1 : 1821-1939. Historical dimensions of public violence in Latin America -- Binding hatreds : public violence, state, and nation in Central American history -- Guatemala : organizing for war -- El Salvador : a democracy of violence -- Honduras : caudillos in search of an army -- Nicaragua : a new army finds its caudillo -- Costa Rica : caudillos in search of a state -- Part 2 : 1940-1960. Transformations -- Defining collaboration : the United States and Central America -- Guatemala : "Showcase of Latin America" -- El Salvador : distrustful collaborator -- Honduras : remaking an "armed rabble" -- Nicaragua : "Ready to receive orders from Uncle Sam" -- Costa Rica : an army renamed -- Conclusions -- Statistical appendix -- Notes
    Pages: x, 336 p.
    ISBN: 0-19-518573-0
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  • 16
    Unknown
    New York : Oxford University Press
    Philosophy of mind series  
    Keywords: Consciousness. ; Dualism. ; Mind and body. ; Philosophy of mind.
    Pages: xvii, 414 p.
    ISBN: 0-585-35313-1
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  • 17
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Electronic books ; Vision disorders ; Visual perception
    Pages: ix, 135 p.
    ISBN: 1-423-70567-X
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  • 18
    Unknown
    New York : Oxford University Press
    Keywords: United States, History, Civil War, 1861-1865, Causes. ; United States, Race relations. ; United States, Social conditions, To 1865. ; Antislavery movements, United States, History, 19th century. ; Riots, United States, History, 19th century. ; Slavery, Government policy, United States. ; Violence, United States, History, 19th century.
    Pages: xx, 372 p.
    ISBN: 0-19-530397-0
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  • 19
    Unknown
    New York, N.Y : Oxford University Press
    Keywords: Dissenters, Religious, England, History, 19th century. ; Dissenters, Religious, England, History, 20th century. ; Dissidents (Religion), Angleterre, Histoire, 19e siècle. ; Dissidents (Religion), Angleterre, Histoire, 20e siècle. ; Theology, Study and teaching, England, History, 19th century. ; Theology, Study and teaching, England, History, 20th century. ; Théologie, Étude et enseignement, Angleterre, Histoire, 19e siècle. ; Théologie, Étude et enseignement, Angleterre, Histoire, 20e siècle.
    Pages: 248 p.
    ISBN: 0-585-16245-X
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  • 20
    Keywords: Great Britain, Civilization, 19th century. ; United States, Civilization, British influences. ; United States, Civilization, 20th century. ; Dickens, Charles,, 1812-1870, Appreciation, United States. ; Criticism, United States, History, 20th century. ; English literature, Appreciation, United States. ; English literature, 19th century, History and criticism, Theory, etc. ; Literature and science, Great Britain. ; Literature and science, United States. ; Postmodernism (Literature), United States. ; Romanticism, Great Britain.
    Pages: x, 270 p.
    ISBN: 0-19-518078-X
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  • 21
    Unknown
    New York : Oxford University Press
    Keywords: Bible., N.T., John. ; Bible., N.T., John, Commentaries.
    Pages: xiii, 625 p.
    Edition: Pbk. rpt. ed., 1997
    ISBN: 0-585-27829-6
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  • 22
    Unknown
    New York, N.Y : Oxford University Press
    Philosophy of mind series  
    Keywords: Ethics, Book reviews. ; Mind and body, Book reviews. ; Philosophy of mind, Book reviews.
    Pages: viii, 264 p.
    ISBN: 0-585-16169-0
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  • 23
    Unknown
    New York : Oxford University Press
    Keywords: Apologetics. ; Christianity, Philosophy. ; Faith and reason, Christianity.
    Pages: xx, 508 p.
    ISBN: 0-585-35267-4
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  • 24
    Keywords: Information society. ; Société informatisée.
    Pages: xxiii, 516 p.
    ISBN: 0-585-35755-2
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  • 25
    Unknown
    Oxford [England] ; New York, N.Y. [USA] : Oxford University Press
    Rutgers series on self and social identity  
    Keywords: Conflict management. ; Ethnic relations. ; Gestion des conflits. ; Group identity. ; Identité collective. ; Relations interethniques.
    Notes: Introduction : social identity and intergroup conflict / Lee Jussim, Richard D. Ashmore, and David Wilder / Ingroup identification and intergroup conflict : when does ingroup love become outgroup hate? / Marilynn B. Brewer -- Ethnic identity, national identity, and intergroup conflict : the significance of personal experiences / Thomas Hylland Eriksen -- The meaning of american national identity : patterns of ethnic conflict and consensus / Jack Citrin, Cara Wong, and Brian Duff -- Communal and national identity in a multiethnic state : a comparison of three perspectives / Jim Sidanius and John R. Petrocik -- Social and role identities and political violence : identity as a window on violence in northern ireland / Robert W. White -- Individual and group identities in genocide and mass killing / Ervin Staub -- The role of national identity in conflict resolution : experiences from Israeli-Palestinian problem-solving workshops / Herbert C. Kelman -- Conclusion : toward a social identity framework for intergroup conflict / Richard D. Ashmore, Lee Jussim, David Wilder, and Jessica Heppen
    Pages: xii, 270 p.
    ISBN: 0-19-530241-9
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  • 26
    Unknown
    New York : Oxford University Press
    Keywords: Ethnopsychology. ; Personality and culture.
    Notes: Culture and psychology at a crossroad : historical perspective and theoretical analysis / John Adamopoulos and Walter J. Lonner -- Individualism and collectivism : past, present, and future / Harry C. Tirandis -- Culture, science, and indigenous psychologies : an integrated analysis / Uichol Kim -- The evolution of cross-cultural research methods / Fons van de Vijver -- Culture, context, and development / Harry W. Gardiner -- Cognition across cultures / R.C. Mishra -- Everyday cognition : where culture, psychology, and education come together / Analúcia D. Schliemann and David W. Carraher -- Culture and moral development / Joan G. Miller -- Culture and emotion / David Matsumoto -- Gender and culture / Deborah L. Best and John E. Williams -- Culture and control orientations / Susumu Yamaguchi -- Culture and human inference : perspectives from three traditions / Kaiping Peng, Daniel R. Ames, and Eric D. Knowles -- Abnormal psychology and culture / Junko Tanaka-Matsumi -- Clinical psychology and culture / Jayne Lee and Stanley Sue -- Polishing the jade : a modest proposal for improving the study of social psychology across cultures / Michael Harris Bond and James T. Tedeschi -- Culture and social cognition : toward a social psychology of cultural dynamics / Yoshihisa Kashima -- Cross-cultural studies of social influence / Peter B. Smith -- Social justice from a cultural perspective / Kwok Leung and Walter G. Stephan -- The A, B, Cs of acculturation / Colleen Ward
    Pages: xvi, 458 p.
    ISBN: 0-19-530227-3
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  • 27
    Unknown
    Oxford ; New York : Oxford University Press
    Series in affective science  
    Keywords: Emotions (Philosophy)
    Notes: Emotions, physiology, and intentionality.Primitive emotions /John Deigh --Emotion : biological fact or social construction /Jenefer Robinson --Embodied emotions /Jesse Prinz --Emotion, appraisal, and cognition.Emotions : what I know, what I'd like to think I know, and what I'd like to think /Ronald de Sousa --Emotions, thoughts, and feelings : emotions as engagements with the world /Robert C. Solomon --Emotions and feelings.Emotion, feeling, and knowledge of the world /Peter Goldie --Subjectivity and emotion /Cheshire Calhoun --Emotions and rationality.Emotions, rationality, and mind/body /Patricia Greenspan --Some considerations about intellectual desire and emotions /Michael Stocker --Emotions, action, and freedom.Emotion and action /Jon Elster --Emotions and freedom /Jerome Neu --Emotion and value.Emotions as judgments of value and importance /Martha Nussbaum --Feelings that matter /Annette Baier --Perturbations of desire : emotions disarming morality in the "Great song" of The Mahabharata /Purushottama Bilimoria --On theories of emotion.Is emotion a natural kind? /Paul E. Griffiths --Emotion as a subtle mental mode /Aaron Ben-Zeev --Enough already with "Theories of emotions" /Amelie Oksenberg Rorty.
    Pages: x, 297 p.
    ISBN: 0-19-530334-2
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  • 28
    Unknown
    Oxford ; New York : Oxford University Press
    Oxford series in cognitive development  
    Keywords: Cognition in infants. ; Cognition, physiology, Infant. ; Concepts in infants. ; Thinking, physiology, Infant.
    Notes: How to build a baby : prologue -- Piaget's sensorimotor infant -- Kinds of representation : seeing and thinking -- Perceptual meaning analysis and image-schemas : the infant as interpreter -- Some image-schemas and their functions -- Some differences between percepts and concepts : the case of the basic level -- Some preverbal concepts -- Conceptual categories as induction machines -- Continuity in the conceptual system : acquisition, breakdown, and reorganization -- Recall of the past -- Language acquisition -- Consciousness and conclusions
    Pages: xiii, 359 p.
    ISBN: 0-19-530396-2
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  • 29
    Unknown
    New York : Oxford University Press
    Keywords: Color (Philosophy)
    Pages: xv, 228 p.
    ISBN: 0-585-36474-5
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  • 30
    Keywords: Denver (Colo.), History, 20th century. ; Middlebury (Vt. : Town), History, 20th century. ; Smyrna (Rutherford County, Tenn.), History, 20th century. ; Cities and towns, United States, Growth, History, 20th century, Case studies. ; Interstate Highway System, History, 20th century. ; Roads, Government policy, United States, History, 20th century. ; Transportation, Automotive, United States, History, 20th century.
    Notes: Highway federalism -- Denver meets the automobile -- The decentralization of post-World War II Denver -- Automobiles and a small town -- Bridges, bypasses, and boulevards -- AutoCity : Smyrna, Tennessee
    Pages: xiv, 297 p.
    ISBN: 0-19-530264-8
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  • 31
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: United States, History, 1783-1815. ; United States, History, Colonial period, ca. 1600-1775. ; United States, History, Revolution, 1775-1783.
    Notes: Preface -- 1754-1763 : Join, or die -- 1763-1766 : Loss of respect and affection -- 1766-1770 : To crush the spirit of the colonies -- 1770-1774 : Cause of Boston now is the cause of America -- 1775-1776 : To die freemen rather than to live slaves -- 1776-1777 : Leap into the dark -- 1778-1782 : This wilderness of darkness and dangers -- 1783-1787 : Present paroxysm of our affairs -- 1787-1789 : So much unanimity and good will -- 1790-1793 : Prosperous at home, respectable abroad -- 1793-1796 : Colossus to the Antirepublican party -- 1797-1799 : Game where principles are the stake -- 1799-1801 : Gigg is up -- 1801 : Age of revolution and reformation
    Pages: xv, 558 p.
    ISBN: 0-19-518418-1
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  • 32
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Amish Country (Pa.) ; Lancaster County (Pa.), Rural conditions. ; Rural development, Pennsylvania, Lancaster County.
    Notes: Introduction: a fertile soil -- Cultivating the garden : the invention of Lancaster County -- Pride and progress : education, literacy, and the little red schoolhouse -- Dutch country : the Amish and tourism -- Domain of abundance : food and farming -- Landscape of progress : urbanization and planning -- Preserving the garden : development and farm preservation -- Epilogue: the harvest -- Appendix : Farms and population of Lancaster County, 1900-2000
    Pages: x, 258 p.
    ISBN: 0-19-518029-1
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  • 33
    Keywords: Consolidation and merger of corporations. ; Human capital. ; Organizational effectiveness.
    Pages: xi, 193 p.
    ISBN: 0-19-518406-8
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  • 34
    Unknown
    New York : Oxford University Press
    Keywords: Philosophy and science. ; Thought experiments.
    Pages: xii, 318 p.
    Edition: [Pbk. reprint 1998]
    ISBN: 0-585-16074-0
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  • 35
    Unknown
    Oxford ; New York : Oxford University Press
    Very short introductions  
    Keywords: Postmodernism.
    Pages: 142 p.
    ISBN: 0-585-48631-X
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  • 36
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Industrial relations. ; Organizational behavior. ; Organizational sociology.
    Pages: x, 294 p.
    ISBN: 0-585-36603-9
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  • 37
    Unknown
    New York : Oxford University Press
    Keywords: Holocaust, Jewish (1939-1945), Influence. ; Holocaust, Jewish (1939-1945), Psychological aspects. ; Holocaust, Jewish (1939-1945), Social aspects. ; Social sciences, Philosophy.
    Notes: The psychology of bystanders, perpetrators, and heroic helpers / Ervin Staub -- What is a "social-psychological" account of perpetrator behavior? The person versus the situation in Goldhagen's Hitler's willing executioners / Leonard S. Newman -- Authoritarianism and the Holocaust: some cognitive and affective implications / Peter Suedfeld and Mark Schaller -- Perpetrator behavior as destructive obedience: an evaluation of Stanley Milgram's perspective, the most influential social-psychological approach to the Holocaust / Thomas Blass -- Sacrificial lambs dressed in wolves' clothing: envious prejudice, ideology, and the scapegoating of Jews / Peter Glick -- Group processes and the Holocaust / R. Scott Tindale ... [et al.] -- Examining the implications of cultural frames on social movements and group action / Daphna Oyserman and Armand Lauffer -- Population and predators: preconditions for the Holocaust from a control-theoretical perspective / Dieter Frey and Helmut Rez -- The zoomorphism of human collective violence / R.B. Zajonc -- The Holocaust and the four roots of evil / Roy F. Baumeister -- Instigators of genocide: examining Hitler from a social-psychological perspective / David R. Mandel -- Perpetrators with a clear conscience: lying self-deception and belief change / Ralph Erber -- Explaining the Holocaust: does social psychology exonerate the perpetrators? / Arthur G. Miller, Amy M. Buddie, and Jeffrey Kretschmar -- Epilogue: Social psychologists confront the Holocaust / Leonard S. Newman and Ralph Erber
    Pages: xi, 360 p.
    ISBN: 0-19-518618-4
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  • 38
    Unknown
    Oxford [England] ; New York : Oxford University Press
    Keywords: United States, Civilization, Philosophy. ; United States, Politics and government, Philosophy. ; National characteristics, American. ; Social values, United States.
    Notes: Introduction: A dream country -- Dream of the good life (I) : the Puritan enterprise -- Dream charter : The declaration of independence -- Dream of the good life (II) : upward mobility -- King of America : the dream of equality -- Detached houses : the dream of home ownership -- Dream of the good life (III) : the coast -- Conclusion: Extending the dream
    Pages: x, 214 p.
    ISBN: 0-19-530398-9
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  • 39
    Unknown
    New York : Oxford University Press
    Oxford readings in feminism  
    Keywords: Feminist theory. ; Women, History.
    Notes: Does a sex have a history? /Denise Riley --The dialects of Black womanhood /Bonnie Thornton Dill --Theorizing woman:Funu, Guojia, Jiating (Chinese women, Chinese state, Chinese family) /Tani Barlow --'Women's history' in transition: the European case /Natalie Zemon Davis --The traffic in women: notes on the 'political economy' of sex /Gayle Rubin --Gender: a useful category of historical analysis /Joan Wallach Scott --African-American women's history and the metalanguge of race /Evelyn Brooks Higginbotham --Carnal knowledge.
    Pages: ix, 611 p.
    ISBN: 0-585-15703-0
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  • 40
    Unknown
    New York : Oxford University Press
    Keywords: United States, Church history, Congresses. ; Christianity, United States, Congresses.
    Pages: ix, 502 p.
    ISBN: 0-585-30487-4
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  • 41
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: United States, Foreign relations, Philosophy. ; United States, Foreign relations, 2001- ; Globalization, Political aspects. ; National characteristics, American.
    Pages: xiv, 288 p.
    Edition: [Pbk. ed.]
    ISBN: 0-19-518433-5
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  • 42
    Unknown
    Oxford : Oxford University Press
    Oxford readings in feminism  
    Keywords: Feminist theory. ; Science, Philosophy. ; Science, Social aspects. ; Women in science.
    Pages: vii, 289 p.
    ISBN: 0-585-12065-X
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  • 43
    Keywords: English literature, 18th century. ; Erotic literature, English. ; Libertinism, Literary collections.
    Notes: British libertine literature before Fanny Hill (1749) -- 1: The school of Venus (1680) -- 2: The pleasure of a single life (1701), The fifteen comforts of Cuckoldom (1706), and the fifteen plagues of a maiden-head (1707) -- 3: Gonosologium Novum (1709) -- 4: Venus in the cloister (1725) -- 5: A dialogue between a married lady and a maid (1740) -- 6: A new description of merryland (1741) -- 7: The female husband (1746)
    Pages: xxxiii, 332 p.
    ISBN: 0-19-518577-3
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  • 44
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Capital social (Sociologie) ; Civil society. ; Democracy. ; Démocratie. ; Social capital (Sociology) ; Société civile.
    Notes: Introduction /Robert D. Putnam and Kristin A. Goss --Great Britain: the role of government and the distribution of social capital /Peter A. Hall --United States: bridging the privileged and the marginalized? /Robert Wuthnow --United States: from membership to advocacy /Theda Skocpol --France: old and new civic and social ties in France /Jean-Pierre Worms --Decline of social capital?: the German case /Claus Offe and Susanne Fuchs --From civil war to civil society: social capital in Spain from the 1930s to the 1990s /Victor Pérez-Díaz --Sweden: social capital in the social democratic state /Bo Rothstein --Australia: making the lucky country /Eva Cox --Broadening the basis of social capital in Japan /Takashi Inoguchi --Conclusion /Robert D. Putnam.
    Pages: 516 p.
    ISBN: 0-19-518460-2
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  • 45
    Unknown
    Oxford : Oxford University Press
    Keywords: Philosophie, Encyclopédies. ; Philosophy, Encyclopedias.
    Pages: xviii, 1009 p.
    ISBN: 0-585-18263-9
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  • 46
    Unknown
    New York, N.Y : Oxford University Press
    Keywords: Arab-Israeli conflict, Religious aspects. ; Arab-Israeli conflict, 1993-, Peace. ; Religion and politics, Middle East.
    Pages: viii, 269 p.
    ISBN: 0-19-518512-9
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  • 47
    Keywords: France, Race relations, History, 18th century. ; Blacks, Legal status, laws, etc., France, History, 18th century. ; Political culture, France, History, 18th century. ; Racism, France, History, 18th century.
    Pages: x, 210 p.
    ISBN: 0-585-32788-2
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  • 48
    Unknown
    New York : Oxford University Press
    Keywords: Etiquette, United States, History.
    Notes: Part I -- Hierarchy: manners in a vertical social order, 1620-1740.Manners for gentlemenManners over minorsManners maketh menPart II --Revolution: an opening of possibilities, 1740-1820.Middle class risingYouth risingWomen risingPart III -- Resolution: manners for democrats, 1820-1860.Manners for the middle classManners for adultsLadies first?
    Pages: x, 310 p.
    ISBN: 0-19-530339-3
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  • 49
    Unknown
    New York : Oxford University Press
    Keywords: Judaism, Dictionaries.
    Pages: xviii, 764 p.
    ISBN: 0-585-38345-6
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  • 50
    Unknown
    Oxford ; New York : Oxford University Press
    Studies in the history of sexuality  
    Keywords: Venice (Italy), Social conditions, To 1797 ; Electronic books ; Marriage, History, Italy, Venice ; Renaissance, Italy, Venice
    Pages: xi, 221 p.
    ISBN: 0-19-518018-6
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  • 51
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Great Britain, Relations, Ireland. ; Ireland, In literature. ; Ireland, Relations, Great Britain. ; Joyce, James,, 1882-1941., Ulysses. ; Joyce, James,, 1882-1941, Aesthetics. ; Joyce, James,, 1882-1941, Political and social views. ; Literature and history, Ireland, History, 20th century. ; Politics and literature, Ireland, History, 20th century.
    Pages: xii, 306 p.
    ISBN: 0-585-48623-9
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  • 52
    Unknown
    New York : Oxford University Press
    Oxford paperback reference  
    Keywords: Philosophie, Dictionnaires anglais. ; Philosophy, Dictionaries.
    Pages: ix, 418 p.
    ISBN: 0-585-11072-7
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  • 53
    Unknown
    New York : Oxford University Press
    Keywords: Wesley, Susanna Annesley,, 1669-1742. ; Wesley, Susanna Annesley,, 1670-1742. ; Anglicans, England, Biography.
    Pages: xiv, 504 p.
    ISBN: 0-585-24572-X
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  • 54
    Unknown
    New York : Oxford University Press
    Keywords: Crime in literature. ; Criminal liability in literature. ; Criminals in literature. ; English fiction, 19th century, History and criticism. ; Law and literature, History, 19th century. ; Legal stories, English, History and criticism. ; Responsibility in literature.
    Notes: Organizing crime : conduct and character in Oliver Twist : prologue to George Eliot's crimes -- "To fix our minds on that consequence" : minding consequences in Adam Bede and Felix Holt -- Middlemarch, Daniel Deronda, and the crime in mind -- James Fitzjames Stephen and the responsibilities of narrative -- Modern responsibilities
    Pages: viii, 275 p.
    ISBN: 0-19-518524-2
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  • 55
    Unknown
    Oxford : Oxford University Press
    Keywords: Ireland, Defenses, History, 20th century. ; Ireland, Foreign relations, 1922- ; Ireland, Military policy, History, 20th century. ; Ireland, Politics and government, 1922- ; National security, Ireland, History, 20th century.
    Pages: 382 p.
    ISBN: 0-585-48615-8
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  • 56
    Unknown
    New York : Oxford University Press
    Keywords: United States, Ethnic relations, History, 19th century. ; United States, Race relations, History, 19th century. ; American fiction, 19th century, History and criticism. ; Caricatures and cartoons, United States, History, 19th century. ; Ethnicity in literature. ; Race in literature. ; Realism in literature. ; Stereotype (Psychology) in literature.
    Notes: Introduction: the age of caricature, the age of realism -- William Dean Howells and the touch of exaggeration which typifies -- "I want a real coon": Twain and ethnic caricature -- A Jamesian art to be cultivated -- Edith Wharton's flamboyant copy -- The "curious realism" of Charles Chesnutt
    Pages: viii, 196 p.
    ISBN: 0-19-518578-1
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  • 57
    Unknown
    New York : Oxford University Press
    Keywords: Eliot, T. S., (Thomas Stearns),, 1888-1965, Views on war. ; Pound, Ezra,, 1885-1972, Views on war. ; Woolf, Virginia,, 1882-1941, Views on war. ; American poetry, 20th century, History and criticism. ; Americans, Great Britain, History, 20th century. ; Modernism (Literature), Great Britain. ; Modernism (Literature), United States. ; World War, 1914-1918, Great Britain, Literature and the war.
    Pages: xiii, 395 p.
    ISBN: 0-19-518055-0
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  • 58
    Unknown
    Oxford : Oxford University Press
    Keywords: Consciousness. ; Neuropsychology.
    Pages: 272 p.
    ISBN: 0-585-24486-3
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  • 59
    Unknown
    Oxford ; New York : Oxford University Press
    Keywords: Mouvements sociaux. ; Social movements.
    Notes: pt. I. Introduction. Opportunities and identities: bridge-building in the study of social movements / David S. Meyer -- pt. II. States and policies. State repression and democracy protest in three southeast Asian countries / Vincent Boudreau -- Mobilization on the South African gold mines / T. Dunbar Moodie -- Multiple meditations: the state and the women's movements in India / Manisha Desai -- The contradictions of gay ethnicity: forging identity in Vermont / Mary Bernstein -- Creating social change: lessons from the civil rights movement / Kenneth T. Andrews -- pt. III. Organization and strategies. The "meso" in social movement research / Suzanne Staggenborg -- Strategizing and the sense of context: reflections on the first two weeks of the Liverpool docks lockout, September-October 1995 / Colin Barker and Michael Lavalette -- Factions and the continuity of political challengers / Mildred A. Schwartz -- More than one feminism: organizational structure and the construction of collective identity / Jo Reger -- The development of individual identity and consciousness among movements of the left and right / Rebecca E. Klatch -- pt. IV. Collective identities, discourse, and culture. Toward a more dialogic analysis of social movement culture / Marc W. Steinberg -- Materialist feminist discourse analysis and social movement research: mapping the changing context for "community control" / Nancy A. Naples -- From the "beloved community" to "family values": religious language, symbolic repertoires, and democratic culture / Rhys H. Williams -- External political change, collective identities, and participation in social movement organizations / Belinda Robnett -- pt. V. Conclusion. Meaning and structure in social movements / Nancy Whittier
    Pages: xvi, 366 p.
    ISBN: 0-19-530277-X
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  • 60
    Publication Date: 2020-11-18
    Description: Heavy rainfall and flooding associated with tropical cyclones (TCs) are responsible for a large number of fatalities and economic damage worldwide. Despite their large socio-economic impacts, research into heavy rainfall and flooding associated with TCs has received limited attention to date, and still represents a major challenge. Our capability to adapt to future changesin heavy rainfall and flooding associated with TCs is inextricably linked to and informed by ourunderstanding of the sensitivity of TC rainfall to likely future forcing mechanisms. Here we use a set of idealized high-resolution atmospheric model experiments produced as part of the U.S. CLIVAR Hurricane Working Group activity to examine TC response to idealized global-scale perturbations: the doubling of CO2, uniform 2K increases in global sea surface temperature(SST), and their combined impact. As a preliminary but key step, daily rainfall patterns ofcomposite TCs within climate model outputs are first compared and contrasted to the observational records. To assess similarities and differences across different regions in response to the warming scenarios, analyses are performed at the global and hemispheric scales and in six global TC ocean basins. The results indicate a reduction in TC daily precipitation rates in the doubling CO2 scenario (on the order of 5% globally), and an increase in TC rainfall rates associated with a uniform increase of 2K in SST (both alone and in combination with CO2 doubling; on the order of 10-20% globally).
    Description: Published
    Description: 4622–4641
    Description: 4A. Clima e Oceani
    Description: JCR Journal
    Description: open
    Keywords: tropical cyclones ; precipitation ; rainfall ; extreme events ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 61
    Publication Date: 2020-11-20
    Description: Siwi caldera, in the Vanuatu arc (Tanna island), is a rare volcanic complex where both persistent eruptive activity (Yasur volcano)and rapid block resurgence (Yenkahe horst) can be investigated simultaneously during a post-caldera stage. Here we provide new constraints on the feeding system of this volcanic complex, based on a detailed study of the petrology, geochemistry and volatile content of Yasur^Siwi bulk-rocks and melt inclusions, combined with measurements of the chemical composition and mass fluxes of Yasur volcanic gases. Major and trace element analyses of Yasur^ Siwi volcanic rocks, together with literature data for other volcanic centers, point to a single magmatic series and possibly long-lived feeding of Tanna volcanism by a homogeneous arc basalt. Olivine-hosted melt inclusions show that the parental basaltic magma, which produces basaltic-trachyandesites to trachyandesites by 50^70% crystal fractionation, is moderately enriched in volatiles ( 1wt % H2O, 0·1wt % S and 0·055 wt % Cl). The basaltic-trachyandesite magma, emplaced at between 4^5 km depth and the surface, preserves a high temperature (1107 158C) and constant H2O content ( 1wt %) until very shallow depths, where it degasses extensively and crystallizes. These conditions, maintained over the past 1400 years of Yasur activity, require early water loss during basalt differentiation, prevalent open-system degassing, and a relatively high heat flow ( 109W). Yasur volcano releases on average 13·4 103 tons d 1 of H2O and 680 tons d 1 of SO2, but moderate amounts of CO2 (840 tons d 1), HCl (165 tons d 1), and HF (23 tons d 1). Combined with melt inclusion data, these gas outputs constrain a bulk magma degassing rate of 5 107 m3 a 1, about a half of which is due to degassing of the basaltic-trachyandesite. We compute that 25 km3 of this magma have degassed without erupting and have accumulated beneath Siwi caldera over the past 1000 years, which is one order of magnitude larger than the accumulated volume uplift of the Yenkahe resurgent block. Hence, basalt supply and gradual storage of unerupted degassed basaltictrachyandesite could easily account for (or contribute to) the Yenkahe block resurgence.
    Description: Published
    Description: 1077-1105
    Description: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Description: 2.4. TTC - Laboratori di geochimica dei fluidi
    Description: JCR Journal
    Description: restricted
    Keywords: Vanuatu arc ; Yasur ; gas fluxes ; volatiles ; melt inclusions ; resurgent block ; volcano thermal budget ; 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 62
    Publication Date: 2021-06-16
    Description: While a quantitative climate theory of tropical cyclone formation remains elusive, considerable progress has been made recently in our ability to simulate tropical cyclone climatologies and understand the relationship between climate and tropical cyclone formation. Climate models are now able to simulate a realistic rate of global tropical cyclone formation, although simulation of the Atlantic tropical cyclone climatology remains challenging unless horizontal resolutions finer than 50 km are employed. This article summarizes published research from the idealized experiments of the Hurricane Working Group of U.S. CLIVAR (CLImate VARiability and predictability of the ocean-atmosphere system). This work, combined with results from other model simulations, has strengthened relationships between tropical cyclone formation rates and climate variables such as mid-tropospheric vertical velocity, with decreased climatological vertical velocities leading to decreased tropical cyclone formation. Systematic differences are shown between experiments in which only sea surface temperature is increased versus experiments where only atmospheric carbon dioxide is increased, with the carbon dioxide experiments more likely to demonstrate the decrease in tropical cyclone numbers previously shown to be a common response of climate models in a warmer climate. Experiments where the two effects are combined also show decreases in numbers, but these tend to be less for models that demonstrate a strong tropical cyclone response to increased sea surface temperatures. Further experiments are proposed that may improve our understanding of the relationship between climate and tropical cyclone formation, including experiments with two-way interaction between the ocean and the atmosphere and variations in atmospheric aerosols.
    Description: Published
    Description: 997–1017
    Description: 4A. Clima e Oceani
    Description: JCR Journal
    Description: restricted
    Keywords: tropical cyclones ; hurricanes ; climate change ; CLIVAR ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 63
    Publication Date: 2020-11-26
    Description: So far, the role of appendicularians in the biogeochemical cycling of organic matter has been largely overlooked. Appendicularians represent only a fraction of total mesozooplankton biomass, however these ubiquitous zooplankters have very high filtration and growth rates compared to copepods, and produce numerous fecal pellets and filtering houses contributing to export production by aggregating small marine particles. To study their quantitative impact on biogeochemical flux, we have included this group in the biogeochemical flux model, using a recently developed ecophysiological model. One-dimensional annual simulations of the pelagic ecosystem including appendicularians were conducted with realistic surface forcing for the year 2000, using data from the DyFAMed open ocean station. The appendicularian grazing impact was generally low, but appendicularians increased detritus production by 8% and export production by 55% compared to a simulation without appendicularians. Therefore, current biogeochemical models lacking appendicularians probably under, or misestimate the detritus and export production by omitting the pathway from small-sized plankton to fast sinking detritus. Detritus production and export rates are 60% lower than the estimates from mesotrophic sites, showing that appendicularians’ role is lower but still significant in oligotrophic environments. The simulated annual export at 200 m exceeds sediment trap values by 44%, suggesting an intense degradation during the sinking of appendicularian detritus, supported by observations made at other sites. Thus, degradation and grazing of appendicularian detritus need better quantification if we are to accurately assess the role of appendicularia in export flux.
    Description: EU-FP6 project SESAME GOCE-036949
    Description: Published
    Description: 855-872
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: JCR Journal
    Description: reserved
    Keywords: BFM ; zooplankton ; 03. Hydrosphere::03.01. General::03.01.01. Analytical and numerical modeling ; 03. Hydrosphere::03.01. General::03.01.07. Physical and biogeochemical interactions ; 03. Hydrosphere::03.04. Chemical and biological::03.04.01. Biogeochemical cycles ; 03. Hydrosphere::03.04. Chemical and biological::03.04.04. Ecosystems
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 64
    facet.materialart.
    Unknown
    American Meteorological Society
    In:  EPIC3Journal of Physical Oceanography, American Meteorological Society, 44(8), pp. 2093-2106, ISSN: 0022-3670
    Publication Date: 2019-07-16
    Description: The recently proposed Internal Wave Dissipation, Energy and Mixing (IDEMIX) model, describing the propagation and dissipation of internal gravity waves in the ocean, is extended. Compartments describing the energy contained in the internal tides and the near-inertial waves at low, vertical wavenumber are added to a compartment of the wave continuum at higher wavenumbers. Conservation equations for each compartment are derived based on integrated versions of the radiative transfer equation of weakly interacting waves. The compartments interact with each other by the scattering of tidal energy to the wave continuum by triad wave– wave interactions, which are strongly enhanced equatorward of 288 due to parametric subharmonic instability of the tide and by scattering to the continuum of both tidal and near-inertial wave energy over rough topography and at continental margins. Global numerical simulations of the resulting model using observed stratification, forcing functions, and bottom topography yield good agreement with available observations.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 65
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    Unknown
    American Meteorological Society
    In:  EPIC3Journal of Climate, American Meteorological Society, 27(10), pp. 3784-3801, ISSN: 0894-8755
    Publication Date: 2014-05-15
    Description: Unlike the rapid sea ice losses reported in the Arctic, satellite observations show an overall increase in Antarctic sea ice concentration over recent decades. However, observations of decadal trends in Antarctic ice thickness, and hence ice volume, do not currently exist. In this study a model of the Southern Ocean and its sea ice, forced by atmospheric reanalyses, is used to assess 1992–2010 trends in ice thickness and volume. The model successfully reproduces observations of mean ice concentration, thickness, and drift, and decadal trends in ice concentration and drift, imparting some confidence in the hindcasted trends in ice thickness. The model suggests that overall Antarctic sea ice volume has increased by approximately 30 km3 yr−1 (0.4% yr−1) as an equal result of areal expansion (20 × 103 km2 yr−1 or 0.2% yr−1) and thickening (1.5 mm yr−1 or 0.2% yr−1). This ice volume increase is an order of magnitude smaller than the Arctic decrease, and about half the size of the increased freshwater supply from the Antarctic Ice Sheet. Similarly to the observed ice concentration trends, the small overall increase in modeled ice volume is actually the residual of much larger opposing regional trends. Thickness changes near the ice edge follow observed concentration changes, with increasing concentration corresponding to increased thickness. Ice thickness increases are also found in the inner pack in the Amundsen and Weddell Seas, where the model suggests that observed ice-drift trends directed toward the coast have caused dynamical thickening in autumn and winter. Modeled changes are predominantly dynamic in origin in the Pacific sector and thermodynamic elsewhere.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 66
    facet.materialart.
    Unknown
    Oxford University Press
    In:  EPIC3Journal of Experimental Botany, Oxford University Press, ISSN: 0022-0957
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 67
    Publication Date: 2017-04-03
    Description: The development of the INGV (Istituto Nazionale di Geofisica e Vulcanologia)-CMCC (Centro Euro-Mediterraneo per i Cambiamenti Climatici) Seasonal Prediction System (SPS) is documented. In this SPS the ocean initial conditions estimation includes a Reduced Order Optimal Interpolation procedure for the assimilation of temperature and salinity profiles at the global scale. Nine member ensemble forecasts have been produced for the period 1991-2003 for two starting dates per year in order to assess the impact of the subsurface assimilation in the ocean for initialization. Comparing the results with control simulations (i.e.: without assimilation of subsurface profiles during ocean initialization), we showed that the improved ocean initialization increases the skill in the prediction of tropical Pacific SSTs in our system for boreal winter forecasts. Considering the forecast of the El Ni˜no 1997-1998, the data assimilation in the ocean initial conditions leads to a considerable improvement in the representation of its onset and development. Our results indicate a better prediction of global scale surface climate anomalies for the forecasts started in November, probably due to the improvement in the tropical Pacific. For boreal winter, in both tropics and extra tropics, we show significant increases in the capability of the system to discriminate above normal and below normal temperature anomalies.
    Description: Published
    Description: 2930-2952
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: JCR Journal
    Description: open
    Keywords: ocean modelling ; global climate models ; seasonal forecast ; coupled models ; 03. Hydrosphere::03.01. General::03.01.03. Global climate models
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 68
    Publication Date: 2017-04-04
    Description: Crystal-rich lithic clasts occurring in volcanic deposits are key tools to understand processes of storage, cooling, and fractionation of magmas in pre-eruptive volcanic systems. These clasts, indeed, represent snapshots of the magma-chamber/host-rock interface before eruptions and provide information on crystallization, differentiation, and degrees of interaction between magma and wall-rocks. In this study, with the aim to shed light on magma-carbonate interaction and CO2 emission in volcanic areas, we focused on the petrology of cumulate and skarn rocks by using as case study a suite of mafic and calcite-bearing lithic clasts from the Colli Albani Volcanic District. By means of phase relations, bulk rock chemistry, phase compositions, and stable isotope data we have recognized different types of cumulates and skarns. Cumulates containing either clinopyroxene±olivine associated with Cr-bearing spinel or glass+phlogopite have been divided in primitive and differentiated, respectively. Primitive cumulates originate at the interface between a relatively primitive magma and carbonate-bearing rocks and show evidences of olivine instability (i.e. heteradcumulate texture) due to carbonate assimilation. Differentiated cumulates, characterized by Ca-rich olivines, phlogopite, and glass containing calcite, form from a differentiated magma in a system open to CaO-contamination. Skarns has been divided in exoskarns, characterized by xenomorphic texture and abundant calcite, and endoskarns, characterized by hypidiomorphic texture, Ca-Tschermak-rich mineral phases, and interstitial glass. Exoskarns formed by means of solid state reactions in a dolostone protolith whereas endoskarns crystallized at subliquidus temperature from a silicate melt that experienced exoskarns assimilation. Our study evidences that magma-carbonate interaction can not be considered a one step process exhausting just after the formation of skarn shells. Magma and carbonate rocks, when in contact, continuously interact leading to the formation of exoskarns, endoskarns, cumulates (primitive and differentiated ones), and differentiated melts. Finally, by means of oxygen and carbon isotope compositions of calcite in equilibrium with skarns, we demonstrate that carbonate assimilation represents a source of massive CO2 degassing mechanism due to the consumption of calcite and removing of CO2 during the decarbonation process.
    Description: Sapienza Universita' di Roma INGV-DPC [Project V 3.1, Colli Albani].
    Description: Published
    Description: 2307-2332
    Description: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Description: JCR Journal
    Description: reserved
    Keywords: magma/carbonate interaction ; CO2 degassing ; c umulate and skarn ; Colli Albani ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 69
    Publication Date: 2017-04-04
    Description: A simulation and two re-analyses from 1985 to 2007 have been produced for the Mediterranean Sea using different assimilation schemes: a Reduced Order Optimal Interpolation (SOFA) and a three-dimensional variational scheme (OceanVar). The observational data set consists of vertical temperature and salinity in-situ profiles and along-track satellite sea-level anomalies; daily mean fields of satellite sea surface temperature are used for correcting the air-sea fluxes. This paper assesses the quality of the re-analyses with respect to observations and the simulation. Both the SOFA and OceanVar schemes give very similar root mean square errors and biases for temperature and salinity fields compared with the assimilated observations. The largest errors are at the thermocline level and in regions of large eddy field variability. However, OceanVar gives 20% better results for sea-level anomaly root mean square error.
    Description: This work was supported by the European Commision MyOcean Project (SPA.2007.1.1.01-development of upgrade capabilities for existing GMES fast-track services and related operational services; Grant Agreement: 218812-1-FP7-SPACE 2007- 1) and by the CIRCE project, founded by the European Commission’s 6th Framework Programme through contract no. 036961. We would also thank the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the Centro Euro-Mediterraneo per i Cambiamenti Climatici (CMCC) for facilities support.
    Description: In press
    Description: 4.6. Oceanografia operativa per la valutazione dei rischi in aree marine
    Description: JCR Journal
    Description: reserved
    Keywords: Mediterranean Sea Circulation ; Data Assimilation ; re-analysis ; 03. Hydrosphere::03.01. General::03.01.05. Operational oceanography ; 03. Hydrosphere::03.03. Physical::03.03.02. General circulation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 70
    Publication Date: 2017-04-03
    Description: A global ocean three-dimensional variational data assimilation system was developed with the aim of assimilating along-track sea level anomaly observations, along with in situ observations from bathythermographs and conventional sea stations. All the available altimetric data within the period October 1992–January 2006 were used in this study. The sea level corrections were covariated with vertical profiles of temperature and salinity according to the bivariate definition of the background-error vertical covariances. Sea level anomaly observational error variance was carefully defined as a sum of instrumental, representativeness, observation operator, and mean dynamic topography error variances. The mean dynamic topography was computed from the model long-term mean sea surface height and adjusted through an optimal interpolation scheme to account for observation minus first-guess biases. Results show that the assimilation of sea level anomaly observations improves the model sea surface height skill scores as well as the subsurface temperature and salinity fields. Furthermore, the estimate of the tropical and subtropical surface circulation is clearly improved after assimilating altimetric data. Nonnegligible impacts of the mean dynamic topography used have also been found: compared to a gravimeter-based mean dynamic topography the use of the mean dynamic topography discussed in this paper improves both the consistency with sea level anomaly observations and the verification skill scores of temperature and salinity in the tropical regions. Furthermore, the use of a mean dynamic topography computed from the model long-term sea surface height mean without observation adjustments results in worsened verification skill scores and highlights the benefits of the current approach for deriving the mean dynamic topography.
    Description: European Commission WP4 Fondazione Cassa di Risparmio di Bologna Cnes
    Description: Published
    Description: 738-754
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: 4.6. Oceanografia operativa per la valutazione dei rischi in aree marine
    Description: 5.4. Banche dati di geomagnetismo, aeronomia, clima e ambiente
    Description: JCR Journal
    Description: partially_open
    Keywords: Data assimilation ; Satellite observations ; Ocean models ; Sea level ; In situ observations ; Variational analysis ; 03. Hydrosphere::03.01. General::03.01.01. Analytical and numerical modeling ; 03. Hydrosphere::03.01. General::03.01.03. Global climate models ; 03. Hydrosphere::03.01. General::03.01.04. Ocean data assimilation and reanalysis
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 71
    Publication Date: 2017-04-04
    Description: Global-scale variations in the climate system over the last half of the twentieth century. including long-term increases in global-mean near-surface temperatures. are consistent with concurrent human-induced emissions of radiatively active gases and aerosols. However, such consistency does not preclude the possible influence of other forcing agents, including internal modes of climate variability or unaccounted for aerosol effects. To test whether other unknown forcing agents may have contributed to multidecadal increases in global-mean near-surface temperatures from 1950 to 2000. data pertaining to observed changes in global-scale sea surface temperatures and observed changes in radiatively active atmospheric constituents are incorporated into numerical global climate models. Results indicate that the radiative forcing needed to produce the observed long-term trends in sea surface temperatures-and global-mean near-surface temperatures-is provided predominantly by known changes in greenhouse gases and aerosols. Further, results indicate that less than 10% of the long-term historical increase in global-mean near-surface temperatures over the last half of the twentieth century could have been the result of internal climate variability. In addition. they indicate that less than 25% of the total radiative forcing needed to produce the observed long-term trend in global-mean near-surface temperatures could have been provided by changes in net radiative forcing from unknown sources (either positive or negative). These results, which are derived from simple energy balance requirements. emphasize the important role humans have played in modifying the global climate over the last half of the twentieth century.
    Description: Published
    Description: 7163-7172
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: JCR Journal
    Description: restricted
    Keywords: climate forcing ; temperature increase ; AGCM ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 72
    Publication Date: 2017-04-04
    Description: In this work the authors investigate possible changes in the intensity of rainfall events associated 28with tropical cyclones (TCs) under idealized forcing scenarios, including a uniformly warmer climate, with a special focus on landfalling storms. A new set of experiments designed within the U.S. CLIVAR Hurricane Working Group allows disentangling the relative role of changes in atmospheric carbon dioxide from that played by sea surface temperature (SST) in changing theamount of precipitation associated with TCs in a warmer world. Compared to the present day simulation, we found an increase in TC precipitation under the scenarios involving SST increases. On the other hand, in a CO2 doubling-only scenario, the changes in TC rainfall are small and we found that, on average, TC rainfall tends to decrease compared to the present day climate. The results of this study highlight the contribution of landfalling TCs to the projected increase in theprecipitation changes affecting the tropical coastal regions.
    Description: Published
    Description: 4642–4654
    Description: 4A. Clima e Oceani
    Description: JCR Journal
    Description: open
    Keywords: tropical cyclones ; precipitation ; extreme events ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 73
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    American Meteorological Society
    Publication Date: 2020-02-24
    Description: An aquaplanet model is used to study the nature of the highly persistent low-frequency waves that have been observed in models forced by zonally symmetric boundary conditions. Using the Hayashi spectral analysis of the extratropical waves, the authors find that a quasi-stationary wave 5 belongs to a wave packet obeying a well-defined dispersion relation with eastward group velocity. The components of the dispersion relation with k ≥ 5 baroclinically convert eddy available potential energy into eddy kinetic energy, whereas those with k 〈 5 are baroclinically neutral. In agreement with Green’s model of baroclinic instability, wave 5 is weakly unstable, and the inverse energy cascade, which had been previously proposed as a main forcing for this type of wave, only acts as a positive feedback on its predominantly baroclinic energetics. The quasi-stationary wave is reinforced by a phase lock to an analogous pattern in the tropical convection, which provides further amplification to the wave. It is also found that the Pedlosky bounds on the phase speed of unstable waves provide guidance in explaining the latitudinal structure of the energy conversion, which is shown to be more enhanced where the zonal westerly surface wind is weaker. The wave’s energy is then trapped in the waveguide created by the upper tropospheric jet stream. In agreement with Green’s theory, as the equator-to-pole SST difference is reduced, the stationary marginally stable component shifts toward higher wavenumbers, while wave 5 becomes neutral and westward propagating. Some properties of the aquaplanet quasi-stationary waves are found to be in interesting agreement with a low frequency wave observed by Salby during December–February in the Southern Hemisphere so that this perspective on low frequency variability, apart from its value in terms of basic geophysical fluid dynamics, might be of specific interest for studying the earth’s atmosphere.
    Description: Published
    Description: 1023–1040.
    Description: JCR Journal
    Description: restricted
    Keywords: Boundary conditions ; 03. Hydrosphere::03.02. Hydrology::03.02.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 74
    Publication Date: 2017-04-04
    Description: In this work the authors investigate possible changes in the distribution of heavy precipitation events under a warmer climate, using the results of a set of 20 climate models taking part in the Coupled Model Intercomparison Project phase 5 effort (CMIP5). Future changes are evaluated as the difference between the last four decades of the 21st and the 20th Century assuming the Representative Concentration Pathway RCP8.5 scenario. As a measure of the width of the right tail of the precipitation distribution, we use the difference between the 99th and the 90th percentiles. Despite a slight tendency to underestimate the observed heavy precipitation, the considered CMIP5 models well represent the observed patterns in terms of the ensemble average, during both summer and winter seasons for the 1997-2005 period. Future changes in average precipitation are consistentwith previous findings based on CMIP3 models. CMIP5 models show a projected increase for the end of the twenty-first century of the width of the right tail of the precipitation distribution, particularly pronounced over India, South East Asia, Indonesia and Central Africa during borealsummer, as well as over South America and southern Africa during boreal winter.
    Description: Published
    Description: 7902–7911
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: JCR Journal
    Description: open
    Keywords: precipitation ; extreme events ; climate change ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 75
    facet.materialart.
    Unknown
    American Meteorological Society
    Publication Date: 2017-04-04
    Description: We study the quasi-geostrophic merging dynamics of axisymmetric baroclinic vortices to understand how baroclinicity affects merging rates and the development of the nonlinear cascade of enstrophy. The initial vortices are taken to simulate closely the horizontal' and vertical structure of Gulf Stream rings. A quasigeostrophic model is set with a horizontal resolution of 9 km and 6 vertical levels to resolve the mean stratification of the Gulf Stream region. The results show that the baroclinic merging is slower than the purely barotropic process, The merging is shown to occur in two phases: the tirst, which produces clove-shaped vortices and diffusive mixing of vorticity contours; and the second, which consists of the sliding of the remaining vorticity cores with a second diffusive mixing of the intemal vorticity field. Comparison among Nof, Cushman-Roisin, Polvani et al, and Dewar and Killworth merging events indicates a substantial agreement in the kinematics of the DYOCRSS. Parameter sensitivity experiments show that the decrease of the baroclinicity parameter of the system, Γ^2, [defined as Γ^2 = (D^2 fo^2)/ (No^2 H^2)], increases the speed of merging while its increase slows down the merging. However, the halting elfect of baroclinicity (large Γ^2 or small Rossby radii of deformation) reaches a saturation level where the merging becomes insensitive to larger F2 values. Furthermore, we show that a regime of small Γ^2 exists at which the merged baroclinic vortex is unstable (metastable) and breaks again into two new vortices, Thus, in the baroelinic case the range of Γ^2 detemines the stability of the merged vortex. We analyze these results by local energy and vorticity balances, showing that the horizontal divergence of pressure work term [∇ *(pv)] and the relative-vorticity advection term (v * ∇ (∇ ^2 φ) trigger the merging during the first phase. Due to this horizontal redistribution process, a net kinetic to gravitational energy conversion occurs via buoyancy work in the region external to the cores of the vortices. The second phase of merging is dominated by a direct baroclinic conversion of available gravitational energy into kinetic energy, which in tum triggers a horizontal energy redistribution producing the final fusion of the vortex centers. This energy and vorticity analysis supports the hypothesis that merging is an internal mixing process triggered by a horizontal redistribution of kinetic energy.
    Description: The work has been financed by a grant from the Progetto Finalizzato "Calcolo Parallelo"
    Description: Published
    Description: 1618/1637
    Description: 4A. Clima e Oceani
    Description: JCR Journal
    Description: restricted
    Keywords: Ocean modeling ; Vortex dynamics ; Baroclinicity ; Eddies ; 03. Hydrosphere::03.01. General::03.01.01. Analytical and numerical modeling
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 76
    Publication Date: 2017-04-04
    Description: Future tropical cyclone activity is a topic of great scientific and societal interest. In the absence of a climate theory of tropical cyclogenesis, general circulation models are the primary tool available for investigating the issue. However, the identification of tropical cyclones in model data at moderate resolution is complex, and numerous schemes have been developed for their detection. We here examine the influence of different tracking schemes on detected tropical cyclone activity and responses in the Hurricane Working Group experiments. These are idealized atmospheric general circulation model experiments aimed at determining and distinguishing the effects of increased sea-surface temperature and other increased CO2 effects on tropical cyclone activity. We apply two tracking schemes to these data and also analyze the tracks provided by each modelling group. Our results indicate moderate agreement between the different tracking methods, with some models and experiments showing better agreement across schemes than others. When comparing responses between experiments, we find that much of the disagreement between schemes is due to differences in duration, wind speed, and formation-latitude thresholds. After homogenisation in these thresholds, agreement between different tracking methods is improved. However, much disagreement remains, accountable for by more fundamental differences between the tracking schemes. Our results indicate that sensitivity testing and selection of objective thresholds are the key factors in obtaining meaningful, reproducible results when tracking tropical cyclones in climate model data at these resolutions, but that more fundamental differences between tracking methods can also have a significant impact on the responses in activity detected.
    Description: Published
    Description: 9197–9213
    Description: 4A. Clima e Oceani
    Description: JCR Journal
    Description: restricted
    Keywords: tropical cyclones ; tracking schemes ; climate change ; hurricanes ; 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 77
    Publication Date: 2020-02-24
    Description: A simulation and two reanalyses from 1985 to 2007 have been produced for the Mediterranean Sea using different assimilation schemes: a reduced-order optimal interpolation [System for Ocean Forecast and Analysis (SOFA)] and a three-dimensional variational scheme (OceanVar). The observational dataset consists of vertical temperature and salinity in situ profiles and along-track satellite sea level anomalies; daily mean fields of satellite sea surface temperature are used for correcting the air–sea fluxes. This paper assesses the quality of the reanalyses with respect to observations and the simulation. Both the SOFA and OceanVar schemes give very similar root-mean-square errors and biases for temperature and salinity fields compared with the assimilated observations. The largest errors are at the thermocline level and in regions of large eddy field variability. However, OceanVar gives 20% better results for sea level anomaly root-mean-square error.
    Description: Published
    Description: 569-59
    Description: JCR Journal
    Description: open
    Keywords: Mediterranean Sea ; 03. Hydrosphere::03.01. General::03.01.05. Operational oceanography
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 78
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    Unknown
    American Meteorological Society
    In:  EPIC3Monthly Weather Review., American Meteorological Society, 140(5), pp. 1589-1602
    Publication Date: 2014-04-17
    Repository Name: EPIC Alfred Wegener Institut
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  • 79
    Publication Date: 2017-10-17
    Description: Mesoscale transport of energy and matter between the surface and the atmosphere often occurs in form of non-propagating organized structures or thermally-induced circulations. Spatially resolving measurements are required to capture such fluxes and, thus far, airborne measurements are the only means to accomplish this. In contrast, tower-based eddy-covariance measurements are conducted at one point and therefore inherently cannot capture the total atmospheric exchange, which is recognized as a major contributor to energy balance closure problems. As long as there are mean vertical thermal and humidity gradients in the Atmospheric Boundary-Layer, with higher potential temperatures and specific humidities in the surface layer as compared with the outer-layer, such organized structures will lead to a systematic underestimation of turbulent energy fluxes from eddy-towers. Firstly, we address the question of how deep such meso-γ scale motions penetrate into the surface layer. We present indications from Doppler-LiDAR, airborne and tower-based measurements, which show that mesoscale motion can indeed be found quite close to the surface, but the mesoscale effect vanishes when measurements are actually conducted within the roughness sublayer and when shear stress is sufficiently large to break up mesoscale contributions into smaller eddies. This will be illustrated by observations from Germany and Israel. Secondly, we investigate whether the common practice of adjusting the measured eddy tower fluxes for energy balance closure by conserving the Bowen ratio is supported by experimental evidence. Mesoscale and small-scale turbulent fluxes from four different flight campaigns are presented, which were carried out on board of the Canadian Twin Otter (National Research Council of Canada) and the German Polar 5 (Alfred-Wegener Institute) research aircraft over different landscapes in Canada and Alaska.
    Repository Name: EPIC Alfred Wegener Institut
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  • 80
    Publication Date: 2017-04-04
    Description: Stromboli is known for its persistent degassing and rhythmic strombolian activity occasionally punctuated by paroxysmal eruptions. The basaltic pumice and scoria emitted during paroxysms and strombolian activity, respectively, differ in their textures, crystal contents and glass matrix compositions, which testify to distinct conditions of crystallization, degassing and magma ascent. We present here an extensive dataset on major elements and volatiles (CO2, H2O, S and Cl) in olivine-hosted melt inclusions and embayments from pyroclasts emplaced during explosive eruptions of variable magnitude. Magma saturation pressures were assessed from the dissolved amounts of H2O and CO2 taking into account the melt composition evolution. Both pressures and melt inclusion compositions indicate that (1) Ca-basaltic melts entrapped in high-Mg olivines (Fo89–90) generate Stromboli basalts through crystal fractionation, and (2) the Stromboli plumbing system can be imaged as a succession of magma ponding zones connected by dikes. The 7–10 km interval, where magmas are stored and differentiate, is periodically recharged by new magma batches, possibly ranging from Ca-basalts to basalts, with a CO2-rich gas phase. These deep recharges promote the formation of bubbly basalt blobs, which are able to intrude the shallow plumbing system (2–4 km), where CO2 gas fluxing enhances H2O loss, crystallization and generation of crystal-rich, dense, degassed magma. Chlorine partitioning into the H2O–CO2-bearing gas phase accounts for its efficient degassing (≥69%) under the open-system conditions of strombolian activity. Paroxysms, however, are generated through predominantly closed-system ascent of basaltic magma batches from the deep storage zone. In this situation crystallization is negligible and sulfur exsolution starts at ≤170 MPa. Chlorine remains dissolved in the melt until lower pressures, only 16% being lost upon eruption. Finally, we propose a continuum in explosive eruption energy, from strombolian activity to large paroxysmal events, ultimately controlled by variable pressurization of the deep feeding system associated with magma and gas recharges.
    Description: Published
    Description: 603-626
    Description: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Description: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Description: JCR Journal
    Description: reserved
    Keywords: Stromboli ; melt inclusions ; magmatic volatiles ; CO2 fluxing ; magma degassing ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 81
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    Unknown
    Oxford University Press
    In:  EPIC3Ocean Acidification, Oxford, Oxford University Press, pp. 291-311, ISBN: 978-0-19-959109-1
    Publication Date: 2014-04-15
    Repository Name: EPIC Alfred Wegener Institut
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  • 82
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    Unknown
    American Meteorological Society
    In:  EPIC3Journal of Physical Oceanography, American Meteorological Society, 44(1), pp. 24-43, ISSN: 0022-3670
    Publication Date: 2017-05-30
    Description: Between ~750 to 635 million years ago, during the Neoproterozoic era, the Earth experienced at least two significant, possibly global, glaciations, termed “Snowball Earth”. While many studies have focused on the dynamics and the role of the atmosphere and ice flow over the ocean in these events, only a few have investigated the related associated ocean circulation, and no study has examined the ocean circulation under a thick (~1 km deep) sea-ice cover, driven by geothermal heat flux. Here, we use a thick sea-ice flow model coupled to an ocean general circulation model to study the ocean circulation under Snowball Earth conditions. We first investigate the ocean circulation under simplified zonal symmetry assumption and find (i) strong equatorial zonal jets, and (ii) a strong meridional overturning cell, limited to an area very close to the equator. We derive an analytic approximation for the latitude-depth ocean dynamics and find that the extent of the meridional overturning circulation cell only depends on the horizontal eddy viscosity and β (the change of the Coriolis parameter with latitude). The analytic approximation closely reproduces the numerical results. Three-dimensional ocean simulations, with reconstructed Neoproterozoic continents configuration, confirm the zonally symmetric dynamics, and show additional boundary currents and strong upwelling and downwelling near the continents.
    Repository Name: EPIC Alfred Wegener Institut
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  • 83
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    Unknown
    Oxford University Press
    In:  EPIC3Journal of Plankton Research, Oxford University Press, 34(5), pp. 399-415, ISSN: 0142-7873
    Publication Date: 2019-07-17
    Description: This study investigates the relationships between the spring phytoplankton community and environmental factors in the Brazil-Malvinas confluence region. Phytoplankton community composition was determined by the high performance liquid chromatography/CHEMTAX approach, complemented with microscopic examination. Abiotic factors included temperature, salinity, dissolved inorganic macronutrients (ammonium, nitrite, nitrate, phosphate and silicate), water column stability and upper mixed layer depth (UMLD). These environmental variables were reasonably informative to explain the variability of the phytoplankton communities (44% of variation explained). Cluster and canonical correspondence analyses allowed discrimination of four zones (coastal, Sub-Antarctic, tropical and intermediate zones), also identifiable in the T–S diagrams and in the nutrient spatial distribution patterns. The presence of nutrient-rich Sub-Antarctic waters was a major oceanographic feature, associated with diatoms and dinoflagellates. However, in the Sub-Antarctic zone, biomass was particularly low, probably as a result of grazing pressure, as suggested by chemical and biological indicators. In contrast, in oligotrophic tropical waters, phytoplankton was mainly composed by small nanoflagellates and cyanobacteria. A large intermediate zone was also dominated by nanoflagellates, mainly Phaeocystis antarctica, probably favored by strong water column stability. The coastal zone exhibited fairly similar conditions to those in the intermediate zone, but with deeper UMLD, a favorable condition for diatom growth. These results emphasize the importance of the properties of water masses and also biological processes such as grazing in structuring phytoplankton communities in the region.
    Repository Name: EPIC Alfred Wegener Institut
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  • 84
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 40 (2010): 789-801, doi:10.1175/2009JPO4039.1.
    Description: The issue of internal wave–mesoscale eddy interactions is revisited. Previous observational work identified the mesoscale eddy field as a possible source of internal wave energy. Characterization of the coupling as a viscous process provides a smaller horizontal transfer coefficient than previously obtained, with vh 50 m2 s−1 in contrast to νh 200–400 m2 s−1, and a vertical transfer coefficient bounded away from zero, with νυ + (f2/N2)Kh 2.5 ± 0.3 × 10−3 m2 s−1 in contrast to νυ + (f2/N2)Kh = 0 ± 2 × 10−2 m2 s−1. Current meter data from the Local Dynamics Experiment of the PolyMode field program indicate mesoscale eddy–internal wave coupling through horizontal interactions (i) is a significant sink of eddy energy and (ii) plays an O(1) role in the energy budget of the internal wave field.
    Keywords: Eddies ; Internal waves ; Mesoscale processes
    Repository Name: Woods Hole Open Access Server
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  • 85
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 40 (2010): 934-948, doi:10.1175/2009JPO4214.1.
    Description: The mean heat and salt balances over the Middle Atlantic Bight continental shelf are investigated by testing the hypothesis that surface fluxes of heat or freshwater are balanced by along-isobath fluxes resulting from the mean, depth-averaged, along-isobath flow acting on the mean, depth-averaged, along-isobath temperature or salinity gradient. This hypothesized balance is equivalent in a Lagrangian frame to a column of water, for example, warming because of surface heating as it is advected southward along isobath by the mean flow. Mean depth-averaged temperatures increase from north to south along isobath at a rate of 2°C (1000 km)−1 at midshelf, which is consistent with the hypothesized balance and mean surface heat flux estimates from the 50-yr NCEP Reanalysis. However, mean surface heat flux estimates from the higher-resolution 20-yr Objectively Analyzed Air–Sea Fluxes (OAFlux) reanalysis are too small to balance the along-isobath heat flux divergence implying a cross-shelf heat flux convergence. It is unclear which surface heat flux estimate, NCEP or OAFlux, is more accurate. The cross-shelf heat flux convergence resulting from the mean cross-shelf circulation is too small to balance the along-isobath heat flux divergence. Mean depth-averaged salinities increase from north to south along isobath at a rate of 1 (psu) (1000 km)−1 at midshelf. Mean precipitation and evaporation rates nearly balance so that the net freshwater flux is too small by more than an order of magnitude to account for the observed along-isobath increase in salinity. The cross-shelf salt flux divergence resulting from the mean cross-shelf circulation has the wrong sign to balance the divergence in the along-isobath salt flux. These results imply there must be an onshore “eddy” salt flux resulting from the time-dependent current and salinity variability. The along-isobath temperature and salinity gradients compensate for each other so that the mean, depth-averaged, along-isobath density gradient is approximately zero. This suggests that there may be a feedback between the along-isobath density gradient and the onshore salt and heat fluxes that maintains the density gradient near zero.
    Description: This work was funded by the National Science Foundation under Grants OCE-0220773, OCE-0241292, andOCE-0548961.
    Keywords: Continental shelf/slope ; Atlantic Ocean ; Fluxes
    Repository Name: Woods Hole Open Access Server
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  • 86
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 40 (2010): 1075-1086, doi:10.1175/2009JPO4375.1.
    Description: A quasigeostrophic, two-layer model is used to study the baroclinic circulation around a thin, meridionally elongated island. The flow is driven by either buoyancy forcing or wind stress, each of whose structure would produce an antisymmetric double-gyre flow. The ocean bottom is flat. When the island partially straddles the intergyre boundary, fluid from one gyre is forced to flow into the other. The amount of the intergyre flow depends on the island constant, that is, the value of the geostrophic streamfunction on the island in each layer. That constant is calculated in a manner similar to earlier studies and is determined by the average, along the meridional length of the island, of the interior Sverdrup solution just to the east of the island. Explicit solutions are given for both buoyancy and wind-driven flows. The presence of an island of nonzero width requires the determination of the baroclinic streamfunction on the basin’s eastern boundary. The value of the boundary term is proportional to the island’s area. This adds a generally small additional baroclinic intergyre flow. In all cases, the intergyre flow produced by the island is not related to topographic steering of the flow but rather the pressure anomaly on the island as manifested by the barotropic and baroclinic island constants. The vertical structure of the flow around the island is a function of the parameterization of the vertical mixing in the problem and, in particular, the degree to which long baroclinic Rossby waves can traverse the basin before becoming thermally damped.
    Description: This research was supported in part by NSF Grant OCE 0451086.
    Keywords: Gyres ; Baroclinic flows ; Topographic effects ; Streamfunction ; Orographic effects
    Repository Name: Woods Hole Open Access Server
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  • 87
    facet.materialart.
    Unknown
    American Meteorological Society
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 39 (2009): 2910-2925, doi:10.1175/2009JPO4139.1.
    Description: The propagation of Rossby waves on a midlatitude β plane is investigated in the presence of density diffusion with the aid of linear hydrostatic theory. The search for wave solutions in a vertically bounded medium subject to horizontal (vertical) diffusion leads to an eigenvalue problem of second (fourth) order. Exact solutions of the problem are obtained for uniform background stratification (N), and approximate solutions are constructed for variable N using the Wentzel–Kramers–Brillouin method. Roots of the eigenvalue relations for free waves are found and discussed. The barotropic wave of adiabatic theory is also a solution of the eigenvalue problem as this is augmented with density diffusion in the horizontal or vertical direction. The barotropic wave is undamped as fluid parcels in the wave move only horizontally and are therefore insensitive to the vortex stretching induced by mixing. On the other hand, density diffusion modifies the properties of baroclinic waves of adiabatic theory. In the presence of horizontal diffusion the baroclinic modes are damped but their vertical structure remains unaltered. The ability of horizontal diffusion to damp baroclinic waves stems from its tendency to counteract the deformation of isopycnal surfaces caused by the passage of these waves. The damping rate increases (i) linearly with horizontal diffusivity and (ii) nonlinearly with horizontal wavenumber and mode number. In the presence of vertical diffusion the baroclinic waves suffer both damping and a change in vertical structure. In the long-wave limit the damping is critical (wave decay rate numerically equal to wave frequency) and increases as the square roots of vertical diffusivity and zonal wavenumber. Density diffusion in the horizontal or vertical direction reduces the amplitude of the phase speed of westward-propagating waves. Observational estimates of eddy diffusivities suggest that horizontal and vertical mixing strongly attenuates baroclinic waves in the ocean but that vertical mixing is too weak to notably modify the vertical structure of the gravest modes.
    Description: This work was supported by the U.S. National Science Foundation.
    Keywords: Rossby waves ; Extratropics ; Buoyancy ; Mixing
    Repository Name: Woods Hole Open Access Server
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  • 88
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 39 (2009): 1541-1550, doi:10.1175/2008JPO3999.1.
    Description: The response of a zonal channel to a uniform, switched-on but subsequently steady poleward outflow is presented. An eastward coastal current with a Kelvin wave’s cross-shore structure is found to be generated instantly upon initiation of the outflow. The current is essentially in geostrophic balance everywhere except for the vicinity of the outflow channel mouth, where the streamlines must cross planetary vorticity contours to feed the current. The adjustment of this region generates a plume that propagates westward at Rossby wave speeds. The cross-shore structure of the plume varies with longitude, and at any given longitude it evolves with time. The authors show that the plume evolution can be understood both conceptually and quantitatively as the westward propagation of the Kelvin current’s meridional spectrum, with each spectral element propagating at its own Rossby wave group velocity.
    Description: This work was completed at Woods Hole Oceanographic Institution while T.S. Durland was supported by the Ocean and Climate Change Institute. M.A. Spall was supported by NSF Grant OCE-0423975, and J. Pedlosky by NSF Grant OCE-0451086. T.S. Durland acknowledges additional report preparation support from NASA Grant NNG05GN98G.
    Keywords: Coastal flows ; Estuaries ; Currents ; Vorticity ; Plumes
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  • 89
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 25 (2008): 2091-2105, doi:10.1175/2008JTECHO587.1.
    Description: An automated, easily deployed Ice-Tethered Profiler (ITP) instrument system, developed for deployment on perennial sea ice in the polar oceans to measure changes in upper ocean water properties in all seasons, is described, and representative data from prototype instruments are presented. The ITP instrument consists of three components: a surface subsystem that sits atop an ice floe; a weighted, plastic-jacketed wire-rope tether of arbitrary length (up to 800 m) suspended from the surface element; and an instrumented underwater unit that employs a traction drive to profile up and down the wire tether. ITPs profile the water column at a programmed sampling interval; after each profile, the underwater unit transfers two files holding oceanographic and engineering data to the surface unit using an inductive modem and from the surface instrument to a shore-based data server using an Iridium transmitter. The surface instrument also accumulates battery voltage readings, buoy temperature data, and locations from a GPS receiver at a specified interval (usually every hour) and transmits those data daily. Oceanographic and engineering data are processed, displayed, and made available in near–real time (available online at http://www.whoi.edu/itp). Six ITPs were deployed in the Arctic Ocean between 2004 and 2006 in the Beaufort gyre with various programmed sampling schedules of two to six one-way traverses per day between 10- and 750–760-m depth, providing more than 5300 profiles in all seasons (as of July 2007). The acquired CTD profile data document interesting spatial variations in the major water masses of the Canada Basin, show the double-diffusive thermohaline staircase that lies above the warm, salty Atlantic layer, measure seasonal surface mixed layer deepening, and document several mesoscale eddies. Augmenting the systems already deployed and to replace expiring systems, an international array of more than one dozen ITPs will be deployed as part of the Arctic Observing Network during the International Polar Year (IPY) period (2007–08) holding promise for more valuable real-time upper ocean observations for operational needs, to support studies of ocean processes, and to facilitate numerical model initialization and validation.
    Description: Initial development of the ITP concept was supported by the Cecil H. and Ida M. Green Technology Innovation Program. Funding for construction and deployment of the prototype ITPs was provided by the National Science Foundation Oceanographic Technology and Interdisciplinary Coordination (OTIC) Program and Office of Polar Programs (OPP) under Grant OCE-0324233. Continued support has been provided by the OPP Arctic Sciences Section under Awards ARC-0519899 and ARC-0631951, and internal WHOI funding.
    Keywords: Profilers ; Sea ice ; Instrumentation/sensors ; Arctic
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  • 90
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1486–1500, doi:10.1175/2007JPO3767.1.
    Description: Fits of an annual harmonic to depth-average along-shelf current time series longer than 200 days from 27 sites over the Middle Atlantic Bight (MAB) continental shelf have amplitudes of a few centimeters per second. These seasonal variations are forced by seasonal variations in the wind stress and the cross-shelf density gradient. The component of wind stress that drives the along-shelf flow over most of the MAB mid- and outer shelf is oriented northeast–southwest, perpendicular to the major axis of the seasonal variation in the wind stress. Consequently, there is not a significant seasonal variation in the wind-driven along-shelf flow, except over the southern MAB shelf and the inner shelf of New England where the wind stress components forcing the along-shelf flow are north–south and east–west, respectively. The seasonal variation in the residual along-shelf flow, after removing the wind-driven component, has an amplitude of a few centimeters per second with maximum southwestward flow in spring onshore of the 60-m isobath and autumn offshore of the 60-m isobath. The spring maximum onshore of the 60-m isobath is consistent with the maximum river discharges in spring enhancing cross-shelf salinity gradients. The autumn maximum offshore of the 60-m isobath and a steady phase increase with water depth offshore of Cape Cod are both consistent with the seasonal variation in the cross-shelf temperature gradient associated with the development and destruction of a near-bottom pool of cold water over the mid and outer shelf (“cold pool”) due to seasonal variations in surface heat flux and wind stress.
    Description: This research was funded by the Ocean Sciences Division of the National Science Foundation under Grants OCE-820773, OCE-841292, and OCE- 848961.
    Keywords: Seasonal variability ; Ocean circulation ; Continental shelf ; Wind stress ; Density currents
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  • 91
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of The UK–SOLAS projects were funded by the Natural Environment Research Council Grants NE/C001826/1 (HiWASE), NE/C001842/1 (SEASAW), NE/C001702/1 (DOGEE), and NE/E011489/1 (DMS Fluxes); and by NSF Grants ATM05-26341 (Hawaii), OCE-0623450 (Miami), and NSF-OCE 0549887/0834340/0550000 (APL-UW). for personal use, not for redistribution. The definitive version was published in Bulletin of the American Meteorological Society 90 (2009): 629-644, doi:10.1175/2008BAMS2578.1.
    Description: As part of the U.K. contribution to the international Surface Ocean–Lower Atmosphere Study, a series of three related projects—DOGEE, SEASAW, and HiWASE—undertook experimental studies of the processes controlling the physical exchange of gases and sea spray aerosol at the sea surface. The studies share a common goal: to reduce the high degree of uncertainty in current parameterization schemes. The wide variety of measurements made during the studies, which incorporated tracer and surfactant release experiments, included direct eddy correlation fluxes, detailed wave spectra, wind history, photographic retrievals of whitecap fraction, aerosol-size spectra and composition, surfactant concentration, and bubble populations in the ocean mixed layer. Measurements were made during three cruises in the northeast Atlantic on the RRS Discovery during 2006 and 2007; a fourth campaign has been making continuous measurements on the Norwegian weather ship Polarfront since September 2006. This paper provides an overview of the three projects and some of the highlights of the measurement campaigns.
    Description: As part of the U.K. contribution to the international Surface Ocean–Lower Atmosphere Study, a series of three related projects—DOGEE, SEASAW, and HiWASE—undertook experimental studies of the processes controlling the physical exchange of gases and sea spray aerosol at the sea surface. The studies share a common goal: to reduce the high degree of uncertainty in current parameterization schemes. The wide variety of measurements made during the studies, which incorporated tracer and surfactant release experiments, included direct eddy correlation fluxes, detailed wave spectra, wind history, photographic retrievals of whitecap fraction, aerosol-size spectra and composition, surfactant concentration, and bubble populations in the ocean mixed layer. Measurements were made during three cruises in the northeast Atlantic on the RRS Discovery during 2006 and 2007; a fourth campaign has been making continuous measurements on the Norwegian weather ship Polarfront since September 2006. This paper provides an overview of the three projects and some of the highlights of the measurement campaigns.
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  • 92
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    American Meteorological Society
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1091-1106, doi:10.1175/2007JPO3805.1.
    Description: A model of deep ocean circulation driven by turbulent mixing is produced in a long, rectangular laboratory tank. The salinity difference is substituted for the thermal difference between tropical and polar regions. Freshwater gently flows in at the top of one end, dense water enters at the same rate at the top of the other end, and an overflow in the middle removes the same amount of surface water as is pumped in. Mixing is provided by a rod extending from top to bottom of the tank and traveling back and forth at constant speed with Reynolds numbers 〉500. A stratified upper layer (“thermocline”) deepens from the mixing and spreads across the entire tank. Simultaneously, a turbulent plume (“deep ocean overflow”) from a dense-water source descends through the layer and supplies bottom water, which spreads over the entire tank floor and rises into the upper layer to arrest the upper-layer deepening. Data are taken over a wide range of parameters and compared to scaling theory, energetic considerations, and simple models of turbulently mixed fluid. There is approximate agreement with a simple theory for Reynolds number 〉1000 in experiments with a tank depth less than the thermocline depth. A simple argument shows that mixing and plume potential energy flux rates are equal in magnitude, and it is suggested that the same is approximately true for the ocean.
    Description: The research was supported by the Ocean Climate Change Institute of Woods Hole Oceanographic Institution.
    Keywords: Ocean circulation ; Mixing ; In situ observations ; Vertical motion
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  • 93
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1669-1689, doi:10.1175/2007JPO3890.1.
    Description: Spectral techniques applied to altimetry data are used to examine the dispersion relation and meridional sea level structure of wavelike variability with periods of about 20 to 200 days in the equatorial Pacific Ocean. Zonal wavenumber–frequency power spectra of sea surface height, when averaged over about 7°S–7°N, exhibit spectral peaks near the theoretical dispersion curves of first baroclinic-mode equatorial Kelvin and Rossby waves. There are distinct, statistically significant ridges of power near the first and second meridional-mode Rossby wave dispersion curves. Sea level variability near the theoretical Kelvin wave and first meridional-mode Rossby wave dispersion curves is dominantly (but not perfectly) symmetric about the equator, while variability near the theoretical second meridional-mode Rossby wave dispersion curve is dominantly antisymmetric. These results are qualitatively consistent with expectations from classical or shear-modified theories of equatorial waves. The meridional structures of these modes resemble the meridional modes of equatorial wave theory, but there are some robust features of the meridional profiles that were not anticipated. The meridional sea level structure in the intraseasonal Kelvin wave band closely resembles the theoretically expected Gaussian profile, but sea level variability coherent with that at the equator is detected as far away as 11.75°S, possibly as a result of the forced nature of these Kelvin waves. Both first and second meridional-mode Rossby waves have larger amplitude in the Northern Hemisphere. The meridional sea level structure of tropical instability waves closely resembles that predicted by Lyman et al. using a model linearized about a realistic equatorial zonal current system.
    Description: This work was supported in part by the NOAA Climate Prediction Program for the Americas (Grant NA17RJ1223).
    Keywords: Spectral analysis ; Sea level ; Dispersion ; Kelvin waves ; Rossby waves
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  • 94
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 2556-2574, doi:10.1175/2008JPO3666.1.
    Description: Vertical profiles of horizontal velocity obtained during the Mid-Ocean Dynamics Experiment (MODE) provided the first published estimates of the high vertical wavenumber structure of horizontal velocity. The data were interpreted as being representative of the background internal wave field, and thus, despite some evidence of excess downward energy propagation associated with coherent near-inertial features that was interpreted in terms of atmospheric generation, these data provided the basis for a revision to the Garrett and Munk spectral model. These data are reinterpreted through the lens of 30 years of research. Rather than representing the background wave field, atmospheric generation, or even near-inertial wave trapping, the coherent high wavenumber features are characteristic of internal wave capture in a mesoscale strain field. Wave capture represents a generalization of critical layer events for flows lacking the spatial symmetry inherent in a parallel shear flow or isolated vortex.
    Description: Salary support for this analysis was provided by Woods Hole Oceanographic Institution bridge support funds.
    Keywords: Eddies ; Ocean dynamics ; Internal waves ; Ocean variability
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  • 95
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    Unknown
    American Meteorological Society
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1267-1277, doi:10.1175/2007JPO3906.1.
    Description: A two-layer quasigeostrophic model in a channel is used to study the influence of lateral displacements of regions of different sign mean potential vorticity gradient (Πy) on the growth rate and structure of linearly unstable waves. The mean state is very idealized, with a region of positive Πy in the upper layer and a region of negative Πy in the lower layer; elsewhere Πy is zero. The growth rate and structure of the model’s unstable waves are quite sensitive to the amount of overlap between the two regions. For large amounts of overlap (more than several internal deformation radii), the channel modes described by Phillips’ model are recovered. The growth rate decreases abruptly as the amount of overlap decreases below the internal deformation radius. However, unstable modes are also found for cases in which the two nonzero Πy regions are separated far apart. In these cases, the wavenumber of the unstable waves decreases such that the aspect ratio of the wave remains O(1). The waves are characterized by a large-scale barotropic component that has maximum amplitude near one boundary but extends all the way across the channel to the opposite boundary. Near the boundaries, the wave is of mixed barotropic–baroclinic structure with cross-front scales on the order of the internal deformation radius. The perturbation heat flux is concentrated near the nonzero Πy regions, but the perturbation momentum flux extends all the way across the channel. The perturbation fluxes act to reduce the isopycnal slopes near the channel boundaries and to transmit zonal momentum from the region of Πy 〉 0 to the region on the opposite side of the channel where Πy 〈 0. These nonzero perturbation momentum fluxes are found even for a mean state that has no lateral shear in the velocity field.
    Description: This work was supported by NSF Grants OPP-0421904, OCE-0423975 (MAS), and OCE- 85108600 (JP).
    Keywords: Baroclinic flows ; Barotropic flows
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  • 96
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Bulletin of the American Meteorological Society 90 (2009): 1337-1350, doi:10.1175/2009BAMS2706.1.
    Description: A major oceanographic field experiment is described, which is designed to observe, quantify, and understand the creation and dispersal of weakly stratified fluid known as “mode water” in the region of the Gulf Stream. Formed in the wintertime by convection driven by the most intense air–sea fluxes observed anywhere over the globe, the role of mode waters in the general circulation of the subtropical gyre and its biogeo-chemical cycles is also addressed. The experiment is known as the CLIVAR Mode Water Dynamic Experiment (CLIMODE). Here we review the scientific objectives of the experiment and present some preliminary results.
    Description: Physical Oceanography program of NSF
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  • 97
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 541-565, doi:10.1175/2007JPO3678.1.
    Description: The impact of the Greenland tip jet on the wintertime mixed layer of the southwest Irminger Sea is investigated using in situ moored profiler data and a variety of atmospheric datasets. The mixed layer was observed to reach 400 m in the spring of 2003 and 300 m in the spring of 2004. Both of these winters were mild and characterized by a low North Atlantic Oscillation (NAO) index. A typical tip jet event is associated with a low pressure system that is advected by upper-level steering currents into the region east of Cape Farewell and interacts with the high topography of southern Greenland. Heat flux time series for the mooring site were constructed that include the enhancing influence of the tip jet events. This was used to force a one-dimensional mixed layer model, which was able to reproduce the observed envelope of mixed layer deepening in both winters. The deeper mixed layer of the first winter was largely due to a higher number of robust tip jet events, which in turn was caused by the steering currents focusing more storms adjacent to southern Greenland. Application of the mixed layer model to the winter of 1994–95, a period characterized by a high-NAO index, resulted in convection exceeding 1700 m. This prediction is consistent with hydrographic data collected in summer 1995, supporting the notion that deep convection can occur in the Irminger Sea during strong winters.
    Description: KV and RP were supported by National Science Foundation Grant OCE-0450658. GWKM was supported by the Canadian Foundation for Climate and Atmospheric Sciences. MHR was supported by the Nordic Council of Ministers (West-Nordic Ocean Climate).
    Keywords: Mixed layer ; Europe ; Wind effects ; In situ observations ; North Atlantic Oscillation
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  • 98
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2007. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 20 (2007): 5376–5390, doi:10.1175/2007JCLI1714.1.
    Description: Global estimates of oceanic evaporation (Evp) from 1958 to 2005 have been recently developed by the Objectively Analyzed Air–Sea Fluxes (OAFlux) project at the Woods Hole Oceanographic Institution (WHOI). The nearly 50-yr time series shows that the decadal change of the global oceanic evaporation (Evp) is marked by a distinct transition from a downward trend to an upward trend around 1977–78. Since the transition, the global oceanic Evp has been up about 11 cm yr−1 (10%), from a low at 103 cm yr−1 in 1977 to a peak at 114 cm yr−1 in 2003. The increase in Evp was most dramatic during the 1990s. The uncertainty of the estimates is about ±2.74 cm yr−1. By utilizing the newly developed datasets of Evp and related air–sea variables, the study investigated the cause of the decadal change in oceanic Evp. The decadal differences between the 1990s and the 1970s indicates that the increase of Evp in the 1990s occurred over a global scale and had spatially coherent structures. Larger Evp is most pronounced in two key regions—one is the paths of the global western boundary currents and their extensions, and the other is the tropical Indo-Pacific warm water pools. It is also found that Evp was enlarged primarily during the hemispheric wintertime (defined as the mean of December–February for the northern oceans and June–August for the southern oceans). Despite the dominant upward tendency over the global basins, a slight reduction in Evp appeared in such regions as the subtropical centers of the Evp maxima as well as the eastern equatorial Pacific and Atlantic cold tongues. An empirical orthogonal function (EOF) analysis was performed for the yearly winter-mean time series of Evp and the related air–sea variables [i.e., wind speed (U) and air–sea humidity differences (dq)]. The analysis suggested a dominant role of the wind forcing in the decadal change of both Evp and dq. It is hypothesized that wind impacts Evp in two ways. The first way is direct: the greater wind speed induces more evaporation by carrying water vapor away from the evaporating surface to allow the air–sea humidity gradients to be reestablished at a faster pace. The second way is indirect: the enhanced surface wind strengthens the wind-driven subtropical gyre, which in turn drives a greater heat transport by the western boundary currents, warms up SST along the paths of the currents and extensions, and causes more evaporation by enlarging the air–sea humidity gradients. The EOF analysis performed for the time series of the global annual-mean Evp fields showed that the first three EOF modes account for nearly 50% of the total variance. The mode 1 variability represents the upward trend in Evp after 1978 and is attributable to the increased U, and the mode 2 variability explains much of the downward trend in Evp before 1978 and is correlated to the global dq variability. The EOF mode 3 of Evp captures the interannual variability of Evp on time scales of the El Niño–Southern Oscillation, with the center of action over the eastern equatorial Pacific.
    Description: The author acknowledges the supporting grants from the NOAA Office of Climate Observations (OCO) and Climate Change Data and Detection (CCDD) and from the NASA Ocean Vector Wind Science Team.
    Keywords: Evaporation ; Winds ; Climatology ; Air-sea interaction ; Decadal variability
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  • 99
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2007. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 20 (2007): 2416-2433, doi:10.1175/JCLI4103.1.
    Description: North Pacific decadal oceanic and atmospheric variability is examined from a 650-yr control integration of the Community Climate System Model version 2. The dominant pattern of winter sea surface temperature (SST) variability is similar to the observed “Pacific decadal oscillation,” with maximum amplitude along the Kuroshio Extension. SST anomalies in this region exhibit significant spectral peaks at approximately 16 and 40 yr. Lateral geostrophic heat flux divergence, caused by a meridional shift of the Kuroshio Extension forced by basin-scale wind stress curl anomalies 3–5 yr earlier, is responsible for the decadal SST variability; local surface heat flux and Ekman heat flux divergence act as a damping and positive feedback, respectively. A simple linear Rossby wave model is invoked to explicitly demonstrate the link between the wind stress curl forcing and decadal variability in the Kuroshio Extension. The Rossby wave model not only successfully reproduces the two decadal spectral peaks, but also illustrates that only the low-frequency (〉10-yr period) portion of the approximately white noise wind stress curl forcing is relevant. This model also demonstrates that the weak and insignificant decadal spectral peaks in the wind stress curl forcing are necessary for producing the corresponding strong and significant oceanic peaks in the Kuroshio Extension. The wind stress curl response to decadal SST anomalies in the Kuroshio Extension is similar in structure but opposite in sign and somewhat weaker than the wind stress curl forcing pattern. These results suggest that the simulated North Pacific decadal variability owes its existence to two-way ocean–atmosphere coupling.
    Description: The first author gratefully acknowledges financial support from NOAA’s Office of Global Programs (grant to C. Deser) and the CCSM Project Office.
    Keywords: Decadal variability ; Fluxes ; Rossby waves ; Wind stress ; Coupled models
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  • 100
    Publication Date: 2022-05-25
    Description: Author Posting. © American Meteorological Society, 2007. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Bulletin of the American Meteorological Society 88 (2007): 527-539, doi:10.1175/bams-88-4-527.
    Description: A 25-yr (1981–2005) time series of daily latent and sensible heat fluxes over the global ice-free oceans has been produced by synthesizing surface meteorology obtained from satellite remote sensing and atmospheric model reanalyses outputs. The project, named Objectively Analyzed Air–Sea Fluxes (OAFlux), was developed from an initial study of the Atlantic Ocean that demonstrated that such data synthesis improves daily flux estimates over the basin scale. This paper introduces the 25-yr heat flux analysis and documents variability of the global ocean heat flux fields on seasonal, interannual, decadal, and longer time scales suggested by the new dataset. The study showed that, among all the climate signals investigated, the most striking is a long-term increase in latent heat flux that dominates the data record. The globally averaged latent heat flux increased by roughly 9 W m−2 between the low in 1981 and the peak in 2002, which amounted to about a 10% increase in the mean value over the 25-yr period. Positive linear trends appeared on a global scale, and were most significant over the tropical Indian and western Pacific warm pool and the boundary current regions. The increase in latent heat flux was in concert with the rise of sea surface temperature, suggesting a response of the atmosphere to oceanic forcing.
    Description: The authors gratefully acknowledge support from NOAA through the Cooperative Institute for Climate and Oceanic Research (CICOR) at the Woods Hole Oceanographic Institution (WHOI). Supporting NOAA grants are from the Office of Climate Observations (OCO) and Climate Change Data and Detection (CCDD).
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