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| G08: | Recent Advances in Observation and Modelling of Glacial Isostatic Adjustment (GIA) |
| Sponsor: |
Geodesy
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| CoSponsor: |
Cryosphere Paleoceanography and Paleclimatology |
| Convener: |
Bert Vermeersen Delft University of Technology Kluyverweg 1 Delft, NLD L.L.A.Vermeersen@tudelft.nl Matt King Newcastle University School of Civil Engineering and Geosciences Cassie Building Newcastle upon Tyne, GBR m.a.king@ncl.ac.uk Erik Ivins Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena, CA, USA Erik.R.Ivins@jpl.nasa.gov |
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1223 0726 1240 1236 1219 .
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| Description: | Glacial isostatic adjustment (GIA) has recently received renewed attention since associated mass transportation is seen as a contaminating signal in Gravity Recovery and Climate Experiment (GRACE) estimates of ice sheet mass balance. This session welcomes reports on advances in both the modelling of GIA, including earth and ice sheet models, and its measurement using geodetic and other techniques, including GRACE, GPS, DORIS, absolute gravity, sea-level indicators and geologic and geomorphologic approaches. A particular focus is on GIA processes under the major present-day ice sheets. Therefore, studies that explore present-day errors/uncertainties/deficiencies in GIA models in Antarctica and Greenland, as relevant to GRACE-based ice mass balance studies, will be of wide interest. Large-scale comparisons of the effects of GIA on satellite altimetry, GPS and GRACE data are particularly welcome. Applications of new GIA models - especially those that can deal with more realistic (full 3-D) earth structures and rheologies - to estimates of ice sheet mass balance are further encouraged. |
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