Ice in the Climate System

ISBN-13: 9783642850189 / Angielski / Miękka / 2012 / 673 str.

W. Richard Peltier

Opis

This volume summarizes the present knowledge of the various ways in which continental ice and sea ice both respond to, and in turn control climate system evolution. Interdisciplinary as this field is the contributions come from glaciologists, physical oceanographers, atmospheric general circulaltion modellers, experts on the reconstruction of past climates using data from ice cores, paleoceanographers and palynologists. The focus is on the thermohaline circulation: the influence of the deep circulation of the oceans upon the long time scale oscillation of planetary climate.

Spis treści

I- Ice Sheet Modelling.- Extent and melting history of the late Weichselian ice sheet, the Barents-Kara continental margin.- Modelling of the Fennoscandian ice sheet.- Controls on changes in the West Antartic ice sheet.- Plastic modelling of glaciers and outlets.- Qualitative dynamics of marine ice sheets.- II- Ice Sheet Mass Balance.- Modelling of glacier mass balance.- Observations and simulations of temperature and ice accumulation at the surface of Antarctica.- World sea level and the present mass balance of the Antarctic ice sheet.- Ice, climate, and sea level; do we know what is happening?.- III- Ice Sheet-Ocean-Atmosphere Interactions.- Heinrich events: triggers of ocean circulation change?.- Heinrich events: chronology and processes, east-central Laurentide ice sheet and NW Labrador Sea.- Transport of freshwater into the deep ocean by the conveyor.- The driving force of brine rejection on the deepwater formation in the Hamburg LSG OGCM.- The melting of continental ice in the ocean and its impact on surface and bottom waters.- Hydrological cycle scenarios, deep ocean circulation, and century/millennium climate change: a simulation study using an ocean-atmosphere-ice sheet model.- A simple systems model of the major glaciation cycles.- Climate model studies of interactions between ice sheets and the atmosphere-ocean system.- Modelling ice sheet and climate changes through the ice ages.- Simulation of the climate of the last 200 kyr with the LLN 2D-model.- The late Cenozoic glacial regimes as a combined response to earth-orbital variations and forced and free CO2 variations.- IV- The Thermohaline Circulation.- The delicacy of the oceanic thermohaline circulation.- Multiple equilibria in ?-plane thermohaline convection.- Younger Dryas Experiments.- Deep decoupling oscillations of the oceanic thermohaline circulation.- The glacial ocean: a study with a zonally averaged, three-basin ocean circulation model.- Oscillatory modes of behavior in a simple model of the Atlantic thermohaline circulation.- Correlation of Greenland ice-core and ice-margin ?(18O) records.- V- Climate Data from Ice Cores.- The connection between ice dynamics and paleoclimate from ice cores: a study of Taylor Dome, Antarctica.- Past accumulation rates derived from observed annual layers in the GRIP ice core from Summit, Central Greenland.- VI- Sea Ice Effects on Climate System Evolution.- Sea ice: a factor in influencing climate on short and long time scales.- Nonlinear paleoclimatic variability from quaternary records.- The Arctic responce to CO2-induced warming in a coupled atmosphere-ocean general circulation model.- Ocean heat and seasonal sea ice thickness in the southern ocean.- Quantitative Reconstruction of Sea-Surface Conditions, Seasonal Extent of Sea-Ice Cover and Meltwater Discharges in High Latitude Marine Environments from Dinoflagellate Cyst Assemblages.- North Atlantic sea surface salinity, ice melting and abrupt climatic changes.- Interannual and climatic characteristics of an ice ocean circulation model.- A thermodynamic-dynamic snow sea-ice model.