ALBERT

Note: In kyrillischer Schrift

Note: CONTENTS: PREFACE EXECUTIVE SUMMARY 1 THE ANTARCTIC ENVIRONMENT AND THE GLOBAL SYSTEM 1.1 THE PHYSICAL SETTING 1.2 THE ANTARCTIC CRYOSPHERE 1.3 THE ROLE OF THE ANTARCTIC IN THE GLOBAL CLIMATE SYSTEM 1.4 OBSERVATIONS FOR STUDIES OF ENVIRONMENTAL CHANGE IN THE ANTARCTIC 1.5 THE CLIMATE OF THE ANTARCTIC AND ITS VARIABILITY 1.6 BIOTA OF THE ANTARCTIC 1.6.1 Terrestrial 1.6.2 Marine 2 OBSERVATIONS, DATA ACCURACY AND TOOLS 2.1 OBSERVATIONS, DATA ACCURACY AND TOOLS 2.1.1 Introduction 2.1.2 Meteorological and ozone observing in the Antarctic 2.1.3 In-situ ocean observations 2.1.4 Sea ice observations 2.1.5 Observations of the ice sheet and permafrost 2.1.6 Sea level 2.1.7 Marine biology 2.1.8 Terrestrial biology 2.1.9 Models 2.2 FUTURE DEVELOPMENTS AND RESEARCH NEEDS 3 ANTARCTIC CLIMATE AND ENVIRONMENT HISTORY IN THE PREINSTRUMENTAL PERIOD 3.1 INTRODUCTION 3.2 DEEP TIME 3.2.1 The Greenhouse world: from Gondwana breakup to 34 million years 3.2.2 Into the Icehouse world: the last 34 million years 3.3 THE LAST MILLION YEARS 3.3.1 Glacial interglacial cycles: the ice core record 3.3.2 The transition to Holocene interglacial conditions: the ice core record 3.3.3 Deglaciation of the continental shelf, coastal margin and continental interior 3.3.4 Antarctic deglaciation and its impact on global sea level 3.3.5 Sea ice and climate 3.4 THE HOLOCENE 3.4.1 Holocene climate change: regional to hemispheric perspectives 3.4.2 Changes in sea ice extent through the Holocene 3.4.3 Regional patterns of Holocene climate change in Antarctica 3.5 BIOLOGICAL RESPONSES TO CLIMATE CHANGE 3.5.1 The terrestrial environment 3.5.2 The marine environment 3.4.3 Regional patterns of Holocene climate change in Antarctica 3.6 CONCLUDING REMARKS 4 THE INSTRUMENTAL PERIOD 4.1 INTRODUCTION 4.2 CHANGES OF ATMOSPHERIC CIRCULATION 4.2.1 Modes of variability ..? 4.2.2 Depression tracks 4.2.3 Teleconnections 4.3 TEMPERATURE 4.3.1 Surface temperature 4.3.2 Upper air temperature changes 4.3.3 Attribution 4.4 CHANGES IN ANTARCTIC SNOWFALL OVER THE PAST 50 YEARS 4.4.1 General spatial and temporal characteristics of Antarctic snowfall 4.4.2 Long-term Antarctic snowfall accumulation estimates 4.4.3 Recent trends in Antarctic snowfall 4.5 ATMOSPHERIC CHEMISTRY 4.5.1 Antarctic stratospheric ozone in the instrumental period 4.5.2 Antarctic tropospheric chemistry 4.5.3 Aerosol, clouds and radiation 4.6 THE SOUTHERN OCEAN 4.6.1 Introduction 4.6.2 Australian sector 4.6.3 The Amundsen/Bellingshausen Seas 4.6.4 Variability and change in Ross Sea shelf waters 4.6.5 The Weddell Sea sector 4.6.6 Small-scale processes in the Southern Ocean 4.6.7 Dynamics of the circulation and water masses of the ACC and the polar gyres from model results 4.7 . ANTARCTIC SEA ICE COVER DURING THE INSTRUMENTAL PERIOD 4.7.1 Introduction 4.7.2 Sea ice cover in the pre-satellite era 4.7.3 Variability and trends in sea ice using satellite data 4.8 THE ICE SHEET AND PERMAFROST 4.8.1 Introduction 4.8.2 The Antarctic Peninsula 4.8.3 West Antarctica 4.8.4 East Antarctica 4.8.5 Calving 4.8.6 Sub-glacial water movement 4.8.7 Other changes in the ice sheet 4.8.8 Attribution of changes to the ice sheet 4.8.9 Conclusions regarding the ice sheet 4.8.10 Changes in Antarctic permafrost and active layer over the last 50 years 4.9 LONG TERM SEA LEVEL CHANGE 4.10 MARINE BIOLOGY 4.10.1 The open ocean system 4.10.2 Sea ice ecosystems 4.10.3 ENSO links and teleconnections to vertebrate life histories and population 4.10.4 Invertebrate physiology 4.10.5 Seasonality effect on the high Antarctic benthic shelf communities? 4.10.6 Macroalgal physiology and ecology 4.10.7 Marine/terrestrial pollution 4.11 BIOGEOCHEMISTRY - SOUTHERN OCEAN CARBON CYCLE RESPONSE TO HISTORICAL CLIMATE CHANGE 4.11.1 Introduction 4.11.2 CO2 fluxes in the Southern Ocean 4.11.3 Historical change - observed response 4.11.4 Historical change - simulated view 4.11.5 Changes in CO2 inventories 4.11.6 Concluding remarks 4.12 TERRESTRIAL BIOLOGY 5 THE NEXT 100 YEARS 5.1 INTRODUCTION 5.2 CLIMATE CHANGE 5.2.1 IPCC scenarios 5.2.2 Climate models 5.2.3 Atmospheric circulation 5.2.4 Temperature change over the Twenty First Century 5.2.5 Precipitation change over the Twenty First Century 5.2.6 Antarctic stratospheric ozone over the next 100 years 5.3 OCEAN CIRCULATION AND WATER MASSES 5.3.1 Simulation of present-day conditions in the Southern Hemisphere 5.3.2 Projections for the Twenty First Century 5.3.3 Long-term evolution of the Southern Ocean 5.3.4 Conclusions 5.4 SEA ICE CHANGE OVER THE TWENTY FIRST CENTURY 5.5 THE TERRESTRIAL CRYOSPHERE 5.5.1 Introduction 5.5.2 East Antarctic ice sheet 5.5.3 West Antarctic ice sheet 5.5.4 Antarctic Peninsula 5.5.5 Conclusions 5.5.6 Summary and needs for future research 5.6 EVOLUTION OF ANTARCTIC PERMAFROST 5.7 PROJECTIONS OF SEA LEVEL IN ANTARCTIC AND SOUTHERN OCEAN WATERS BY 2100 5.7.1 Regional projections of mean sea-level rise 5.8 BIOGEOCHEMISTRY - RESPONSE OF THE SOUTHERN OCEAN CARBON CYCLE TO FUTURE CLIMATE CHANGE 5.8.1 Background 5.8.2 Future Southern Ocean carbon response 5.8.3 Response to increased CO2 uptake 5.8.4 Concluding remarks 5.9 BIOLOGY 5.9.1 Terrestrial Biology 5.9.2 Marine Biology 5.9.3 The Antarctic marine ecosystem in the year 2100 6 RECOMMENDATIONS 7 REFERENCES.

Note: Contents: List of Contributors. - Preface. - Part I. Introduction: 1. Applications and uses of diatoms: prologue ; 2. The diatoms: a primer ; 3. Numerical methods for the analysis of diatom assemblage data ; Part II. Diatoms as indicators of environmental change in flowing waters and lakes: 4. Assessing environmental conditions in rivers and streams with diatoms ; 5. Diatoms as indicators of long-term environmental change in rivers, fluvial lakes and impoundments ; 6. Diatoms as indicators of surface-water acidity ; 7. Diatoms as indicators of lake eutrophication ; 8. Diatoms as indicators of environmental change in shallow lakes ; 9. Diatoms as indicators of water-level change in freshwater lakes ; 10. Diatoms as indicators of hydrologic and climatic change in saline lakes ; 11. Diatoms in ancient lakes ; Part III. Diatoms as Indicators in Arctic, Antarctic and alpine lacustrine environments: 12. Diatoms as indicators of environmental change in subarctic and alpine regions ; 13. Freshwater diatoms as indicators of environmental change in the High Arctic ; 14. Diatoms as indicators of environmental change in Antarctic and subantarctic freshwaters ; Part IV. Diatoms as indicators in marine and estuarine environments: 15. Diatoms and environmental change in large brackish-water ecosystems ; 16. Applied diatom studies in estuaries and shallow coastal environments ; 17. Estuarine paleoenvironmental reconstructions using diatoms ; 18. Diatoms on coral reefs and in tropical marine lakes ; 19. Diatoms as indicators of former sea levels, earthquakes, tsunamis and hurricanes ; 20. Marine diatoms as indicators of modern changes in oceanographic conditions ; 21. Holocene marine diatom records of environmental change ; 22. Diatoms as indicators of paleoceanographic events ; 23. Reconsidering the meaning of biogenic silica accumulation rates in the glacial Southern Ocean ; Part V. Other applications: 24. Diatoms of aerial habitats ; 25. Diatoms as indicators of environmental change in wetlands and peatlands ; 26. Tracking fish, seabirds, and wildlife population dynamics with diatoms and other limnological indicators ; 27. Diatoms and archaeology ; 28. Diatoms in oil and gas exploration ; 29. Forensic science and diatoms ; 30. Toxic marine diatoms ; 31. Diatoms as markers of atmospheric transport ; 32. Diatoms as nonnative species ; 33. Diatomite ; 34. Stable isotopes from diatom silica ; 35. Diatoms and nanotechnology: early history and imagined future as seen through patents ; Part IV. Conclusions: 36. Epilogue: a view to the future ; Glossary, acronyms, and abbreviations ; Index.

Note: Contents Preface 1 Introduction 1.1 The necessity for measurements 1.2 Definition of a measurement 1.3 Historical aspects 2 Measurement basics 2.1 Overview of methods 2.1.1 Direct and indirect methods 2.1.2 In-situ and remote sensing methods 2.1.3 Instantaneous and integrating methods 2.1.4 On-line and off-line methods, post-processing 2.1.5 Flux measurements 2.2 Main measurement principles 2.3 Measurements by inversion 2.3.1 Inversion with one variable 2.3.2 Inversion with more than one variable 2.3.3 Well-posed and ill-posed problems 2.4 Measurement instruments 2.4.1 Active and passive instruments 2.4.2 Analogue and digital instruments 2.5 Measurement platforms 2.6 Measurement variables 2.7 General characteristics of measured data 2.8 Data logging 2.9 Quality assurance/quality control 3 In-situ measurements of state variables 3.1 Thermometers 3.1.1 Liquid-in-glass thermometers 3.1.2 Bimetal thermometers 3.1.3 Resistance thermometers, thermistors 3.1.4 Thermocouples, thermopiles 3.1.5 Sonic thermometry 3.1.6 Measurement of infrared radiation 3.1.7 Soil thermometer 3.1.8 Recommendations for temperature measurements 3.2 Measuring moisture 3.2.1 Hygrometer 3.2.2 Psychrometers 3.2.3 Dewpoint determination 3.2.4 Capacitive methods 3.2.5 Recommendations for humidity measurements 3.3 Pressure sensors 3.3.1 Barometers 3.3.2 Hypsometers 3.3.3 Electronic barometers 3.3.4 Microbarometer 3.3.5 Pressure balance 3.3.6 Recommendations for pressure measurements 3.4 Wind measurements 3.4.1 Estimation from visual observations 3.4.2 Wind direction 3.4.3 Cup anemometer 3.4.4 Pressure tube 3.4.5 Hot wire anemometer 3.4.6 Ultrasonic anemometer 3.4.7 Propeller anemometer 3.4.8 Recommendations for wind measurements 4 In-situ methods for observing liquid water and ice 4.1 Precipitation 4.1.1 Rain sensors (Present Weather Sensors) 4.1.2 Rain gauges (totalisators) 4.1.3 Pluviographs 4.1.4 Disdrometer 4.1.5 Special instruments for snow 4.1.6 Recommendations for precipitation measurements 4.2 Soil moisture 4.2.1 Gravimetric methods 4.2.2 Neutron probes 4.2.3 Time domain reflectrometry (TDR) 4.2.4 Tensiometers 4.2.5 Resistance block tensiometer 4.2.6 Recommendations for soil moisture measurements 5 In-situ measurement of trace substances 5.1 Measurement of trace gases 5.1.1 Physical methods 5.1.2 Chemical methods 5.1.3 Recommendations for the measurement of trace gases 5.2 Particle measurements 5.2.1 Determination of the particle mass 5.2.2 Measuring particle size distributions 5.2.3 Measurement of the chemical composition of particles 5.2.4 Measuring the particle structure 5.2.5 Saltiphon 5.2.6 Recommendations for particle measurements 5.3 Olfactometry 5.4 Radioactivity 5.4.1 Counter tubes 5.4.2 Scintillation counters 5.4.3 Recommendations for radioactivity monitoring 6 In-situ flux measurements 6.1 Measuring radiation 6.1.1 Measuring direct solar radiation 6.1.2 Measuring shortwave irradiance 6.1.3 Measuring longwave irradiance 6.1.4 Measuring the total irradiance 6.1.5 Measuring chill 6.1.6 Sunshine recorder 6.1.7 Recommendations for radiation measurements 6.2 Visual range 6.3 Micrometeorological flux measurements 6.3.1 Cuvettes 6.3.2 Surface chambers 6.3.3 Mass balance method 6.3.4 Inferential method 6.3.5 Gradient method 6.3.6 Bowen-ratio method 6.3.7 Flux variance method 6.3.8 Dissipation method 6.3.9 Eddy covariance method 6.3.10 Eddy accumulation methods 6.3.11 Disjunct eddy covariance method 6.3.12 Recommendations for the measurement of turbulent fluxes 6.4 Evaporation Atmometers 6.4.2 Lysimeters 6.4.3 Evaporation pans and tanks 6.4.4 Recommendations for evaporation measurements 6.5 Soil heat flux 6.6 Inverse emission flux modelling 7 Remote sensing methods 7.1 Basics of remote sensing 7.2 Active sounding methods 7.2.1 RADAR 7.2.2 Windprofilers 7.2.3 SODAR 7.2.4 RASS 7.2.5 LIDAR 7.2.6 Further LIDAR techniques 7.3 Active path-averaging methods 7.3.1 Scintillometers 7.3.2 FTIR 7.3.3 DOAS 7.3.4 Quantum cascade laser 7.4 Passive methods 7.4.1 Radiometers 7.4.2 Photometers 7.4.3 Infrared-Interferometer 7.5 Tomography 7.5.1 Simultaneous Iterative Reconstruction Technique 7.5.2 Algebraic Reconstruction Technique (ART) 7.5.3 Smooth Basis Function Minimization (SBFM) 8 Remote sensing of atmospheric state variables 8.1 Temperature 8.1.1 Near-surface temperatures 8.1.2 Temperature profiles 8.2 Gaseous humidity 8.2.1 Integral water vapour content 8.2.2 Vertical profiles 8.2.3 Large-scale humidity distribution 8.3 Wind and turbulence 8.3.1 Small-scale near-surface turbulence 8.3.2 Horizontal wind fields 8.3.3 Vertical wind profiles 8.3.4 Turbulence profiles 8.3.5 Cloud winds 8.3.6 Ionospheric winds 8.4 Mixing-layer heights 8.4.1 LIDAR 8.4.2 SODAR 8.5 Turbulent fluxes 8.6 Ionospheric electron densities 8.7 Recommendations for remote sensing of state variables 9 Remote sensing of water and ice 9.1 Precipitation 9.1.1 RADAR 9.1.2 Precipitation measurements from satellites 9.2 Clouds 9.2.1 Cloud base 9.2.2 Cloud cover 9.2.3 Cloud movement 9.2.4 Water content 9.3 Recommendations for remote sensing of liquid water and ice 10 Remote sensing of trace substances 10.1 Trace gases 10.1.1 Horizontal path-averaging methods 10.1.2 Vertical column densities 10.1.3 Sounding methods 10.2 Aerosols 10.2.1 Aerosol optical depths (AOD) 10.2.2 Sounding methods 10.3 Recommendations for remote sensing of trace substances 11 Remote sensing of surface properties 11.1 Properties of the solid surface 11.1.1 Surface roughness 11.1.2 Land surface temperature 11.1.3 Soil moisture 11.1.4 Vegetation 11.1.5 Snow and ice 11.1.6 Fires 11.2 Properties of the ocean surface 11.2.1 Altitudes of the sea surface 11.2.2 Wave heights 11.2.3 Sea surface temperature 11.2.4 Salinity 11.2.5 Ocean currents 11.2.6 Ice cover, size of ice floes 11.2.7 Algae and suspended sediment concentrations 12 Remote sensing of electrical phenomena 12.1 Spherics 12.1.1 Directional analyses 12.1.2 Distance analyses 12.2 Optical lightning detection 13 Outlook on new developments Literature Subject index Appendix: Technical guidelines and standards Index to the Appendix

Note: Contents: 1 The origins of ACSYS / Victor Savtchenko. - PART I OBSERVATIONS: 2 Advances in Arctic atmospheric research / James E. Overland and Mark C. Serreze. - 3 Sea-ice observation: advances and challenges / Humfrey Melling. - 4 Observations in the ocean / Bert Rudels, Leif Anderson, Patrick Eriksson, Eberhard Fahrbach, Martin Jakobsson, E. Peter Jones, Humfrey Melling, Simon Prinsenberg, Ursula Schauer, and Tom Yao. - 5 Observed hydrological cycle / Hermann Mächel, Bruno Rudolf, Thomas Maurer, Stefan Hagemann, Reinhard Hagenbrock, Lev Kitaev, Eirik J. Førland, Vjacheslav Rasuvaev, and Ole Einar Tveito. - 6 Interaction with the global climate system / T. A. McClimans, G. V. Alekseev, O. M. Johannessen, and M. W. Miles. - PART II MODELLING: 7 Mesoscale modelling of the Arctic atmospheric boundary layer and its interaction with sea ice / Christof Lüpkes, Timo Vihma, Gerit Birnbaum, Silke Dierer, Thomas Garbrecht, Vladimir M. Gryanik, Micha Gryschka, Jörg Hartmann, Günther Heinemann, Lars Kaleschke, Siegfried Raasch, Hannu Savijärvi, K. Heinke Schlünzen, and Ulrike Wacker. - 8 Arctic regional climate models / K. Dethloff, A. Rinke, A. Lynch, W. Dorn, S. Saha, and D. Handorf. - 9 Progress in hydrological modeling over high latitudes: under arctic climate system study (ACSYS) / Dennis P. Lettenmaier and Fengge Su. - 10 Sea-ice-ocean modelling / Rüdiger Gerdes and Peter Lemke. - 11 Global climate models and 20th and 21st century Arctic climate change / Cecilia M. Bitz, Jeff K. Ridley, Marika Holland, and Howard Cattle. - 12 ACSYS: Scientific foundation for the climate and cryosphere (CliC) project / Konrad Steffen, Daqing Yang, Vladimir Ryabinin, and Ghassem Asrar.