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2018WCRPspon col July2018 01 1

Nature Article on Ice-sheet Mass Balance and Climate Change


Since the 2007 Intergovernmental Panel on Climate Change Fourth Assessment Report, new observations of ice-sheet
mass balance and improved computer simulations of ice-sheet response to continuing climate change have been
published. Whereas Greenland is losing ice mass at an increasing pace, current Antarctic ice loss is likely to be less
than some recently published estimates. It remains unclear whether East Antarctica has been gaining or losing ice mass
over the past 20 years, and uncertainties in ice-mass change for West Antarctica and the Antarctic Peninsula remain
large. We discuss the past six years of progress and examine the key problems that remain.

The work presented here is based on the Ice-Sheet Mass Balance and Sea Level (ISMASS) workshop that was held in Portland, Oregon, USA, on 14 July 2012. This workshop was jointly organized by the Scientific Committee on Antarctic Research (SCAR), the International Arctic Science Committee (IASC) and the Word Climate Research Programme (WCRP), and was co-sponsored by the International Council for Science (ICSU), SCAR, IASC, WCRP, the International Glaciological Society (IGS) and the International Association of Cryospheric Sciences (IACS), with support fromClimate and Cryosphere (CliC) and the Association of Polar Early Career Scientists (APECS).

Results from that workshop, videos of presentations and more can be found here:

Mass Balance of the Antarctic Ice Sheet 1992-2008
(Media / Mass Balance of the Antarctic Ice Sheet 1992-2008)
Mass Balance of the Antarctic Ice Sheet 1992-2008 from ERS and ICESat: Gains exceed losses - Presented by Jay Zwally, NASA Goddard, USA
(Media / 2012-Boundary-Layer-Workshop-Report)
The atmosphere-ocean boundary layer in which sea ice resides includes many complex processes that require a more realistic treatment in GCMs, particularly as models move toward full earth system descriptions. The primary purpose of the workshop was to define and discuss such coupled processes...
2008-01 No. 10 Ice and Climate News
(Media / 2008-01 No. 10 Ice and Climate News)
- CliC Scientific Steering Group (comings and goings) - Atmosphere-Ocean General Circulation Models - Global Prediction: Permafrost - Operational Sea-Ice Analysis and Forecasting at - Arctic Council Climate and Cryosphere Project - Seasonal Forecast of Antarctic Sea Ice - The Global...

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