Abstract
An overview of advances in ice research which can be expected from future satellite gravity missions is given. We compare present and expected future accuracies of the ice mass balance of Antarctica which might be constrained to 0.1–0.3 mm/year of sea level equivalent by satellite gravity data. A key issue for the understanding of ice mass balance is the separation of secular and interannual variations. For this aim, one would strongly benefit from longer uninterrupted time series of gravity field variations (10 years or more). An accuracy of 0.01 mm/year for geoid time variability with a spatial resolution of 100 km would improve the separability of ice mass balance from mass change due to glacial isostatic adjustment and enable the determination of regional variations in ice mass balance within the ice sheets. Thereby the determination of ice compaction is critical for the exploitation of such high accuracy data. A further benefit of improved gravity field models from future satellite missions would be the improvement of the height reference in the polar areas, which is important for the study of coastal ice processes. Sea ice thickness determination and modelling of ice bottom topography could be improved as well.
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InstitutionalAuthorNameCommittee on Earth Gravity from Space (1997) Satellite Gravity and the Geosphere National Academy Press Washington, D.C.
P. Huybrechts R. Dietrich H. Miller C. Haas (2004) Ice mass balance and sea level K.H. Ilk J. Flury R. Rummel P. Schwintzer W. Bosch C. Haas J. Schröter D. Stammer W. Zahel H. Miller R. Dietrich P. Huybrechts H. Schmeling D. Wolf J. Riegger A. Bardossy A. Güntner (Eds) Mass Transports and Mass Distribution in the System Earth. Contribution of the New Generation of Satellite Gravity and Altimetry Missions to Geosciences TU GFZ Potsdam München 48–60
P. Huybrechts (2002) Quat.Sci.Rev 21 IssueID1–3 203–231 Occurrence Handle10.1016/S0277-3791(01)00082-8
Hvidegaard S. M. and Forsberg R.: 2002, Geophys. Res. Lett. 29(20), 1952, doi:10.1029/2001GL014474.
T.S. James E.R. Ivins (1997) J.Geoph.Res.Vol 102 IssueIDB1 605–634 Occurrence Handle10.1029/96JB02855
I. Joughin S. Tulaczyk (2002) Science 295 476–480 Occurrence Handle10.1126/science.1066875 Occurrence Handle11799237
S. Laxon N. Peacock D. Smith (2003) Nature 425 947–950 Occurrence Handle10.1038/nature02050 Occurrence Handle14586466
E. Rignot R.H. Thomas (2002) Science 297 1502 Occurrence Handle10.1126/science.1073888 Occurrence Handle12202817
R.H. Thomas (2001) EOS Transactions, AGU 82 IssueID34 369–373
I. Velicogna J. Wahr (2002a) J. Geophys. Res 107 IssueIDB10 2263 Occurrence Handle10.1029/2001JB000708
I. Velicogna J. Wahr (2002b) J. Geophys. Res 107 IssueIDB10 2376 Occurrence Handle10.1029/2001JB001735
S. Venegas M.R. Drinkwater G. Schaffer (2001) Geophys.Res.Lett 28 IssueID17 3301–3304 Occurrence Handle10.1029/2001GL012991
Vermeersen, L. L. A.: 2004, Challenges from Solid Earth Dynamics for Satellite Gravity Field Missions in the Post-GOCE Era. This issue.
J. Wahr D. Wingham C. Bentley (2000) J.Geophys.Res 105 IssueIDB7 16279–16294 Occurrence Handle10.1029/2000JB900113
J. Wahr I. Velicogna (2003) Space Sci. Rev 108 IssueID1 319–330 Occurrence Handle10.1023/A:1026183526762
Woodworth, Ph.: 2004, Global Sea Level Change. This issue.
X. Wu M.M. Watkins E.R. Ivins R. Kwok P. Wang J. Wahr (2002) J. Geophys.Res 107 IssueIDB11 2291 Occurrence Handle10.1029/2001JB000543
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Flury, J. Ice Mass Balance and Ice Dynamics from Satellite Gravity Missions. Earth Moon Planet 94, 83–91 (2004). https://doi.org/10.1007/s11038-004-8213-5
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DOI: https://doi.org/10.1007/s11038-004-8213-5