ALBERT

Note: Contents Preface Ackowledgements 1 Introduction 1.1 Definition and extent 1.2 The role of the cryosphere in the climate system 1.3 The organization of cryospheric observations and research 1.4 Remote sensing of the cryosphere Part I The terrestrial cryosphere 2A Snowfall and snow cover 2.1 History 2.2 Snow formation 2.3 Snow cover 2.4 Snow cover modeling in land surface schemes of GCMs 2.5 Snow interception by the canopy 2.6 Sublimation 2.7 Snow metamorphism 2.8 In situ measurements of snow 2.9 Remote sensing of snowpack properties and snow-cover area 2.10 Snowmelt modeling 2.11 Recent observed snow cover changes 2B Avalanches 2.12 History 2.13 Avalanche characteristics 2.14 Avalanche models 2.15 Trends' in avalanchf:' conditions 3 Glaciers and ice caps 3.1 History 3.2 Definitions 3.3 Glacier characteristics 3.4 Mass balance 3.5 Remote sensing 3.6 Glacier flow and flowlines 3.7 Scaling 3.8 Glacier modeling 3.9 Ice caps 3.10 Glacier hydrology 3.11 Changes in glaciers and ice caps 4 Ice sheets 4.1 History of exploration 4.2 Mass balance 4.3 Remote sensing 4.4 Mechanisms of ice sheet changes 4.5 The Greenland Ice Sheet 4.6 Antarctica 4.7 Overall ice sheet changes 4.8 Ice sheet models 4.9 Ice sheet and ice shelf interaction 4.10 Ice sheet contributions to sea level change 5 Frozen ground and permafrost 5.1 History 5.2 Frozen ground definitions and extent 5.3 Thermal relationships 5.4 Vertical characteristics of permafrost 5.5 Remote sensing 5.6 Ground ice 5.7 Permafrost models 5.8 Geomorphological features associated with permafrost 5.9 Changes in permafrost and soil freezing 6 Freshwater ice 6.1 History 6.2 Lake ice 6.3 Changes in lake ice cover 6.4 River ice 6.5 Trends in river ice cover 6.6 Icings Part II The marine cryosphere 7 Sea ice 7.1 History 7.2 Sea ice characteristics 7.3 Ice drift and ocean circulation 7.4 Sea ice models 7.5 Leads, polynyas, and pressure ridges 7.6 Ice thickness 7.7 Trends in sea ice extent and thickness 8 Ice shelves and icebergs 8.1 History 8.2 Ice shelves 8.3 Ice streams 8.4 Conditions beneath ice shelves 8.5 Ice shelf buttressing 8.6 Icebergs 8.7 Ice islands Part Ill The cryosphere past and future 9 The cryosphere in the past 9.1 Introduction 9.2 Snowball Earth and ice-free Cretaceous 9.3 Phanerozoic glaciations 9.4 Late Cenozoic polar glaciations 9.5 The Quaternary 9.6 The Holocene 10 The future cryosphere: impacts of global warming 10.1 Introduction 10.2 General observations 10.3 Recent cryospheric changes 10.4 Climate projections 10.5 Projected changes to Northern Hemisphere snow cover 10.6 Projected changes in land ice 10.7 Projected permafrost changes 10.8 Projected changes in freshwater ice 10.9 Projected sea ice changes Part IV Applications 11 Applications of snow and ice research 11.1 Snowfall 11.2 Freezing precipitation 11.3 Avalanches 11.4 Ice avalanches 11.5 Winter sports industry 11.6 Water resources 11.7 Hydropower 11.8 Snow melt floods 11.9 Freshwater ice 11.10 Ice roads 11.11 Sea ice 11.12 Glaciers and ice sheets 11.13 Icebergs 11.14 Permafrost and ground ice I 1.15 Seasonal ground freezing Glossary References Index

Note: TABLE OF CONTENTS: Foreword. - Conference summary. - EXTENDED ABSTRACTS OF THE INVITED PAPERS. - ACSYS as a journey of discovery / K. Aagaard. - The hydroclimatology of north-flowing high latitude rivers / R. G. Lawford. - Atmospheric components of the hydrological cycle in the Arctic / R. G. Barry, M. C. Serreze and J. E. Walsh. - Hydrological studies in the Arctic zone of Russia / V. V. Ivanov and V. S. Vuglinsky. - On sensitivity of a simulated high-latitude atmosphere to sea-ice fluctuation and to parameterization of cloud optical properties / V. P. Meleshko, V. M. Kattsov and P. V. Sporyshev. - Characteristics of Arctic clouds and radiation (abstract only) / J. A . Curry. - Processes of air-sea interaction in polar regions / A. P. Makshtas, V. F . Timachev and A. S . Zachek. - The ACSYS Arctic Atmosphere Programme (abstract only) / H. Cattle. - Modeling interactions between shortwave radiation, pack ice and the upper ocean / G. A. Maykut. - Remote sensing of Arctic Sea ice / J. Askne. - Sea ice rheologies for use in climate models (abstract only) / W. D. Hibler III and C. F . Ip. - Problems of sea ice modelling for climate research / P. Lemke. - Climatic variability of the Arctic Ocean circulation connected with interannual variations of atmospheric processes / L. A. Timokhov. - Water modification on Arctic continental shelves: seasonal cycle and interannual variation / H. Melling. - Convective water mass and ice formation in Arctic shelf seas (numerical process studies) / J. O. Backhaus, H. Fohrmann, I. H. Harms, J. H. Jungclaus and A. Rubino. - Arctic Ocean water masses and circulation: An overview based on the 1991 expedition of IB ODEN / E . P. Jones. - EXTENDED ABSTRACTS OF THE POSTER PAPERS. - SESSION 1 - HYDROLOGICAL CYCLE. - Characteristics of water and sediment discharge formation from small watersheds of the Arctic zone under the impact of technology / N. N. Bobrovitskaya, N. G. Vasilenko and K. M. Zubkova. - ECMWF and METEO-FRANCE GCM simulations of precipitation and surface mass balance of the Greenland ice sheet / C. Genthon. - River water inflow to the Arctic seas / V. V. Ivanov. - The initiation of ice sheet growth, Milankovitch solar radiation variations, and the 100 Kyr ice age cycle / T. S . Ledley and S. Chu. - Research results for evaporation from different landscapes in the Arctic zone / S. M. Novikov and S. A. Trofimov. - Interannual variability in precipitation minus evaporation over the Arctic, 1974-91 (abstract only) / M. C. Serreze, R. G. Barry, M. C. Rehder and J. E. Walsh. - Criogenic transformation of the surface- and subsurface inflows into the Arctic seas / B. L. Sokolov and M. L. Markov. - Hydrological cycle modelling for Arctic river basins / Yu. B. Vinogradov and T. A. Vinogradova. - Atmospheric water vapor convergence and river runoff in northern high latitudes / J. E. Walsh, D. Fortis and X. Zhou. - An investigation of the atmospheric effect on snowmelt in the Arctic and subarctic / T. Zhang, K. Stamnes and S.-A. Bowling. - A valuation of possible changes in glacio-hydrological characteristics under global warming: South-Eastern Alaska glaciation / N. V. Davidovich and M. D. Ananicheva. - SESSION 2 - ATMOSPHERE. - Modelling the atmospheric transportation of dust to the Arctic (abstract only) / K. K. Andersen. - Mechanisms of formation and predictability of the intermediate and high latitudes atmospheric blockings / R. V. Bekryaev. - A regional climate model of the Arctic atmosphere / M. Botzet, J. H. Christensen, E. Claudius, K. Dethloff, R. Lehmann, B. Machenhauer and A. Rinke. - Wintertime cold-air outbreaks from the Arctic ice / B. Brümmer. - International Arctic cloudiness-aerosol-radiation project (IACARP) (abstract only) / A. A. Chernikov, I. P. Mazin, I. I. Mokhov and A. I. Voskresensky. - The importance of the low level inversions upon the Arctic weather and climate / K. Wilhelmsen. - On the impact of sub-grid scale sea-ice distribution on atmospheric climate and air-sea fluxes / A. Grotzner, R. Sausen and M. Claussen. - Interaction of the modern climatic changes of atmosphere, ocean and ice cover in the Arctic / Z. M. Gudkovich, V. F. Zakharov, E. O. Aksenov and S. P. Pozdnyshev. - Airborne measurements of turbulent transfer of momentum and heat related to floe field structure in the Fram Strait / J. Hartmann, E. Augstein and C. Kottmeier. - Heat and water budgets over the northern polar region as estimated from 14 atmospheric general circulation models / V. M. Kattsov, T. V. Pavlova and V. A. Govorkova. - On the variability of surface heat fluxes at high latitudes / G. W. K. Moore. - Temperature inversions in Arctic atmosphere / A. P. Nagurny, G. V. Alekseev and E. V. Rozanov. - Physical and optical/radiative properties of Arctic aerosols: potential effects on Arctic climate / R. F. Pueschel and S. A. Kinne. - Calculation of heat fluxes for Arctic regions dependent on sea ice distribution / C. Lüpkes, K. H. Schlünzen, G. Birnbaum and K. Salzen. - Carbon emission from the northern ecosystems and climatic changes (abstract only) / I. P. Semiletov, S. A. Zimov, Yu. V. Voropaev and S. P. Daviodov. - The Atmospheric Radiation Measurement (ARM) Programme North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART): Science issues / K. Stamnes and B. O. Zak. - Dependence of surface albedo in the Arctic on surface characteristics, clouds and solar elevation / K. Stamnes, Z. Jin and B. O. Zak. - Use of advanced earth observing satellite to study radiation/cloud/climate interactions and ozone chemistry in the Arctic / K. Stamnes, V. V. Filyushkin and B. O. Zak. - Is it tropospheric sudden warming? (abstract only) / H. L. Tanaka and M. Hayasaki. - Methods for estimating the characteristics of the atmospheric boundary layer in polar regions / A. P. Makshtas and V. F. Timachev. - The Atmospheric Radiation Measurement (ARM) Programme North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART): An overview / B. O. Zak and K. Stamnes. - SESSION 3 - SEA ICE. - Modelling convection in a melt pond / P. V. Bogorodsky. - An operational ice-ocean coupled model of the northern hemisphere / A. Cheng and R. H. Preller. - Patterns of monthly wind and ice motion in the Arctic Basin (abstract only) / R. Colony. - Wind-driven ice motion and surface ocean currents in the Arctic Basin (abstract only) / R. Colony. - Surface melt puddles on multi-year sea ice in the Eurasian Arctic / H. Eicken, R. Gradinger, B. Ivanov, A. Makshtas and R. Pác. - Sensitivity of a large-scale sea-ice-upper-ocean model to uncertainties in the atmospheric forcing / T. Fichefet and M. A. Morales Maqueda. - Parameterizing the strength of Arctic sea ice / G. M. Flato. - Russian historical material on sea ice as a part of global digital sea ice data bank / I. E. Frolov and V. M. Smolyanitsky. - A large-scale simulation of Arctic sea ice, 1986-1992 / M. Harder. - On coupling a dynamic-thermodynamic snow sea-ice model to a global climate model / D. M. Holland and J. M . Oberhuber. - A mesoscale simulation of the Arctic ice pack / M. A. Hopkins. - Seasonal evolution of sea ice cover and shelf water off Labrador simulated in a coupled ice-ocean model / M. Ikeda, T. Yao and Q. Yao. - A study on the relation between the sea-ice extent in the Arctic and runoff into the Arctic Ocean (abstract only) / R. Kanohgi, H. L. Tanaka and T. Yasunari. - Development of seasonal ice cover in the Beaufort Sea: A view from below (abstract only) / H. Melling. - Measurement, analysis and parameterization of melt pond albedo / M. P. Morassutti and E .F. LeDrew. - Characteristics of surface energy partitioning over snow-covered first-year sea ice in the Canadian Arctic Archipelago during the spring transition / T. N. Papakyriakou and E. F. LeDrew. - The interaction of solar radiation with summer sea ice / D. K. Perovich and W. B. Tucker III. - Relating Arctic pack ice stress and strain at the 10km scale / J. A. Richter-Men