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  • 1
    Call number: MOP Per 301/C(20)
    In: CSIRO Division of Atmospheric Research technical paper
    Type of Medium: Monograph available for loan
    Pages: 31 S. : graph. Darst.
    ISBN: 0643051112
    Series Statement: CSIRO Division of Atmospheric Research technical paper 20
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 65 (1998), S. 241-245 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary An intriguing picture is emerging of coupled track and intensity links in tropical cyclones. Since recurvature represents a dramatic track shift, recurving tropical storms are isolated in this study and their time of maximum lifetime intensity is compared to their time of recurvature. Thirty-one percent of all western North Pacific tropical storms and 28% of all such storms in North Atlantic recurve. Seventeen years of track and intensity data for recurving tropical cyclones in these basins are examined here. The overwhelming majority (≈80%) of western North Pacific tropical storms (including typhoons) reach their lifetime maximum intensity prior to recurvature. More than 45% of all recurving storms have coincident recurvature and lifetime maximum intensity, with weaker tropical storms clearly more likely to reach peak intensity at recurvature than strong systems. Inspection of tropical storm intensity and track data for North Atlantic systems reveals few clear patterns. The most robust observation to be made here is that the majority of these systems reach their peak intensity prior to recurvature. Exclusion of landfalling extratropically transforming tropical cyclones from this sample greatly reduces the number of systems, making the significance of any results questionable.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 60 (1996), S. 191-205 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Summary Whilst the tropics comprise only 50% of the Earth's surface, 75% of the annual, global rainfall occurs there. Hence, the tropics are the latent heat engine for the general circulation of the atmosphere. In this environment, all manner of convective weather systems exist: intense and destructive tropical storms (TS), organized mesoscale convective systems (MCCs and CCCs here) and much weaker, short-lived convection (DSL). The relative importance of these differing convective weather systems to the hydrologic cycle of the Atlantic Ocean basin is considered here. An automated, satellite-based climatology and classification of these four different classes of convective weather systems is used to define system characteristics and contribution to basin-wide rainfall over an 18 month time period. It is found that short-lived thunderstorms (DSL class) are the largest contributors to the basin-wide rainfall, however their contribution represents only about half of the total diagnosed rainfall. Organized mesoscale systems contribute the balance. Hence, mesoscale organized weather systems seem to play an important rôle in the Atlantic Ocean hydrologic cycle. Due to the potentially large error bounds on the satellite rainfall climatologies used here, the results of this study are contransted with the recent climatology of Cotton et al. (1995), which incorporates some estimates of rainfall characteristics for mesoscale systems based on numerical model simulations. Comparison of these two climatologies showed good agreement in the relative magnitudes of rainfall determined for each class of convection.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Potato research 10 (1967), S. 16-36 
    ISSN: 1871-4528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Variations in the concentration of the main biochemical factors responsible for after-cooking blackening in potatoes have been examined in a number of varieties grown on a black fen soil and a clay soil. Highly significant correlations were found between blackening and the ratio of chlorogenic acid/citric acid in the individual varieties. Blackening was usually greater in the fen grown tubers and this was generally associated with the presence of less citric acid and sometimes more clorogenic acid. The annual fluctuation in blackening at a given centre was mainly due to the different amounts of chlorogenic acid and citric acid found in the tubers under the varying climatic conditions.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1871-4528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Veränderungen in den Konzentration der haupsächlichsten biochemischen Faktoren, die für die Schwarzverfärbung nach dem Kochen ausschlaggebend sind, wurden während der Wachstumperiode anhand von zwei Sorten, die sich im Verhalten gegenüber Schwarzverfärbung deutlich unterscheiden, auf ihre Auswirkungen untersucht;Majestic (eine zur Schwarzverfärbung neigende Sorte mit hohem Gehalt an Chlorogensäure) undUlster Beacon (eine nicht zur Schwarzverfärbung neigende Sorte mit tiefem Chlorogensäuregehalt). Während der Wachstumsperiode nahm in beiden Sorten die Intensität der Schwarzverfärbung ab, und die Verteilung der Verfärbung wechselte vom Kronen-zum Nabelende (Abb. 4). Diese Unterschiede in der Schwarzverfärbung waren verbunden mit Veränderungen bezüglich Menge und Verteilung der Zitronensäure (Abb. 1) und Chlorogensäure (Abb. 3). Hohe signifikante Korrelationskoeffizienten wurden zwischen Schwarzverfärbung und Chlorogensäure, Schwarzverfärbung und Zitronensäure sowie zwischen Schwarzverfärbung und dem Verhältnis von Chlorogensäure zu Zitronensäure (Tabelle 3) festgestellt. Die Verteilung der Zitronensäure in der Knolle stand in Beziehung zur Verteilung des Kaliums (Tabelle 1). Während der Wachstumsperiode blieb die Kalikonzentration—abgesehen vom Erntezeitpunkt V—in der ganzen Knolle mehr oder weniger konstant, während die Konzentration der Zitronensäure anstieg (Tabelle 2). Bei jedem Erntezeitpunkt zeigten die Knollen der SorteMajestic stärkere Schwarzverfärbung und enthielten grössere Mengen Chlorogensäure als jene der SorteUlster Beacon.
    Abstract: Résumé Les modifications dans les concentrations des principaux facteurs biochimiques responsables du noircissement après cuisson ont été observées pendant la période de croissance chez deux variétés présentant des comportements au noircissement largement différents:Majestic (une variété qui noircit et qui a une haute teneur en acide chlorogénique) etUlster Beacon (une variété sans noircissement et qui a une basse teneur en acide chlorogénique). Chez les deux variétés l'intensité du noireissement diminue et sa répartition varie de la couronne au hile pendant la saison de croissance (Fig. 4). Les changements dans le noircissement sont associés aux changements dans la quantité et la répartition de l'acide citrique (Fig. 1) et de l'acide chlorogénique (Fig. 3.). Des coëfficients de corrélation hautement significatifs sont trouvés entre le noircissement et l'acide chlorogénique, le noireissement et l'acide citrique, et entre le noircissement et le rapport de l'acide chlorogénique à l'acide citrique (Tableau 3). La répartition de l'acide citrique dans le tubereule est liée à la répartition du potassium (Tableau 1). Pendant la saison de croissance la concentration du potassium dans le tubercule entier restait plus ou moins constante sauf à la récolte V, tandis que la concentration en acide citrique augmentait (Tableau 2). A chaque récolte les tubercules deMajestic noircissaient davantage et contenaient de quantités plus grandes d'acide chlorogénique que les tubercules deUlster Beacon.
    Notes: Summary Variations in the concentrations of the main biochemical factors responsible for after-cooking blackening have been followed during the growing season in two varieties with widely differing blackening behaviour (Majestic andUlster Beacon). In both varieties the intensity of blackening decreased and the distribution changed from bud to stem end during the growing season. These changes in blackening were associated with changes in the amount and distribution of citric acid and chlorogenic acid. Highly significant correlation coefficients were found between blackening and chlorogenic acid, blackening and citric acid, and between blackening and the ratio of chlorogenic acid to citric acid. At each harvestMajestic tubers blackened more thanUlster Beacon tubers and always contained larger amounts of chlorogenic acid.
    Type of Medium: Electronic Resource
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  • 6
    Publication Date: 1988-08-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 7
    Publication Date: 2016-05-13
    Description: Author(s): N. W. Evans, J. L. Sanders, and Alex Geringer-Sameth J-factors (or D-factors) describe the distribution of dark matter in an astrophysical system and determine the strength of the signal provided by annihilating (or decaying) dark matter respectively. We provide simple analytic formulas to calculate the J-factors for spherical cusps obeying the empiri… [Phys. Rev. D 93, 103512] Published Thu May 12, 2016
    Keywords: Cosmology
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
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  • 8
    Publication Date: 2015-06-06
    Description: The High Seas are increasingly the subject of exploitation. Although Marine Protected Areas (MPAs) are seen as a useful tool in the sustainable management of the oceans, progress in the implementation of MPA networks in areas beyond national jurisdiction has been limited. Specifically, the criteria of "representativeness" has received little consideration. This study uses the systematic conservation planning software Marxan coupled with a biologically meaningful biophysical habitat map to investigate representative MPA network scenarios and to assess the efficiency and representativeness of the existing High Seas MPA network in the Northeast Atlantic. Habitat maps were created based on the layers of water mass structure and seabed topography resulting in 30 different habitats, in six distinct regions. Conservation targets were set at 10 and 30% representation of each habitat within the final network. Two portfolios were created. The first portfolio (P1) ignored the presence of the existing MPA network within the study area allowing a non-biased selection of planning units (PUs) or sites to be chosen. The second (P2) enforced the selection of areas within the existing MPA network. Efficiency was measured as the difference in the percentage area contained within the "best scenario" MPAs from the un-bias run (P1) compared with (P2). Representativety of the existing network was assessed through the investigation of the properties of PUs included within MPAs in the "best scenario" Marxan output of P2. The results suggest that the current MPA network is neither efficient nor representative. There were clear differences in the spatial distribution of PUs selected in P1 compared with P2. The area required to be protected to achieve that the representation of 10 and 30% of each habitat was 8–10 and 1–4% higher, respectively, in P2 compared with P1. Abyssal areas in all regions are underrepresented within the current MPA network.
    Print ISSN: 1054-3139
    Electronic ISSN: 1095-9289
    Topics: Biology , Geosciences , Physics
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  • 9
  • 10
    Publication Date: 1998-01-01
    Print ISSN: 0177-7971
    Electronic ISSN: 1436-5065
    Topics: Geography , Physics
    Published by Springer
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