Abstract
In a warming climate, it is critical to accurately estimate ice-sheet mass balance to quantify its contribution to present-day sea-level rise. In this study temporal mass variations in Antarctica are investigated based on monthly GRACE gravity solutions. In order to diminish the effect of large uncertainties in glacial isostatic adjustment (GIA) models, an approach is developed to estimate the acceleration of the ice-sheet mass, assuming the presence of accelerated melt signal in the GRACE data. Though the estimate of accelerated melt does not provide an absolute value for the volume of the melting ice, it is a viable tool for characterizing the present-day ice-sheet mass balance.
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References
Bath M (1974) Spectral analysis in geophysics. Developments in solid Earth geophysics. Elsevier, Amsterdam
Bettadpur S (2003) Level-2 gravity field product user handbook. GRACE project material
Chen JL, Wilson CR, Blankenship DD, Tapley BD (2006) Antarctic mass change rates from GRACE. Geophys Res Lett 33:L11502. doi:10.1029/2006GL026369
Gruber T, Zenner L, Jäggi A (2009) Impact of atmospheric uncertainties on GRACE de-aliasing and gravity field models. Presented paper at ‘Geodesy for Planet Earth’, IAG 2009 Buenos Aires
Guo JY, Duan XJ, Shum CK (2010) Non-isotropic Gaussian smoothing and leakage reduction for determining mass changes over land and ocean using GRACE data. Geophys J Int 181:290–302
Heki K, Matsuo K (2009) Ice loss versus uplift: current mass balance in Asian high mountains from satellite gravimetry. Presented paper at ‘Geodesy for Planet Earth’, IAG 2009, Buenos Aires
Ivins ER, James TS (2005) Antarctic glacial isostatic adjustment: a new assessment. Antarct Sci 17(4):541–553
Jekeli C (1981) Alternative methods to smooth the Earth’s gravity field. OSU Report Series, vol. 327
Müller J, Peterseim N, Steffen H (2009) Mass variations in the Siberian permafrost regions from GRACE. Presented paper at ‘Geodesy for Planet Earth’, IAG 2009, Buenos Aires
Nemeth D (2009) Analysis of ice mass redistribution in Greenland based on GRACE gravity models. Proceedings of the Scientific Students Conference, Budapest University of Technology and Economics, Budapest (accepted)
Oerlemans J (1981) Effect of irregular fluctuations in Antarctic precipitation on global sea level. Nature 290:770–772
Peltier WR (2004) Global glacial isostasy and the surface of the ice-age Earth: the ICE-5G (VM2) model and GRACE. Annu Rev Earth Planet Sci 32:111–149
Peltier WR (2009) Closure of the budget of global sea level rise over the GRACE era: the importance and magnitudes of the required corrections for global glacial isostatic adjustment. Quatern Sci Rev. doi:10.1016j.quascirev.2009.04.004
Shum CK, Kuo C, Guo J (2008) Role of Antarctic ice mass balances in present-day sea level change. Polar Sci. doi:10.1016/j.polar.2008.05.004
Swenson S, Wahr J (2002) Methods for inferring regional surface-mass anomalies from GRACE measurements of time-variable gravity. J Geophys Res 107(B9):2193
Wahr J, Duncan W, Bentley C (2000) A method of combining ICESat and GRACE satellite data to constrain Antarctic mass balance. J Geophys Res 105(B7):16,279–16,294
Acknowledgement
This research has been supported by the Bolyai-Kelly scholarship. The contributions of CK Shum, Junyi Guo, Hyongki Lee and Zhenwei Huang are gratefully acknowledged.
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Földváry, L. (2012). Mass-Change Acceleration in Antarctica from GRACE Monthly Gravity Field Solutions. In: Kenyon, S., Pacino, M., Marti, U. (eds) Geodesy for Planet Earth. International Association of Geodesy Symposia, vol 136. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20338-1_72
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DOI: https://doi.org/10.1007/978-3-642-20338-1_72
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