Improving surface boundary conditions with focus on coupling snow densification and meltwater retention in large-scale ice-sheet models of Greenland

Journal of Glaciology

Volumn 55, Issue 193, 2009, Pages 869-878

  Fausto, Robert S ^a,b   Ahlstrøm, Andreas P ^a   Van As, Dirk ^a   Johnsen, Sigfús J ^b   Langen, Peter L ^b   Steffen, Konrad ^c  

^a GEOLOGICAL SURVEY OF DENMARK AND GREENLAND   (Denmark)

^b UNIVERSITY OF COPENHAGEN   (Denmark)

^c UNIVERSITY OF COLORADO   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ABLATION; AIR TEMPERATURE; BOUNDARY CONDITION; GLACIAL HYDROLOGY; GLACIER MASS BALANCE; ICE SHEET; MELTWATER; MODELING; PARAMETERIZATION; PERCOLATION; QUANTITATIVE ANALYSIS; RETENTION; RUNOFF; SNOWPACK; SPATIAL DISTRIBUTION;

ARCTIC; GREENLAND; GREENLAND ICE SHEET;

EID: 75449092464     PISSN: 00221430     EISSN: None     Source Type: Journal    
DOI: 10.3189/002214309790152537     Document Type: Article

References (29)

1. Bøggild, C.E., R. Forsberg and N. Reeh. 2005. Meltwater retentionin a transect across the Greenland ice sheet. Ann. Glaciol., 40, 169-173.
2. Bougamont, M. and 7 others. 2007. Impact of model physics on estimating the surface mass balance of the Greenland ice sheet. Geophys. Res. Lett, 34(17), L17501. (10.1029/2007GL030700.
3. Box, J.E. and 8 others. 2006. Greenland ice sheet surface mass balance variability (1988-2004) from calibrated polar MM5 output. J. Climate, 19(12), 2783-2800.
4. Braithwaite, R.J. 1985. Calculation of degree-days for glacier-climate research. Z. Cletscherkd. Glazialgeol., 20, 1-8.
5. Braithwaite, R.J. 1995. Positive degree-day factors for ablation on the Greenland ice sheet studied by energy-balance modelling. J. Glaciol., 41(137), 153-160.
6. Colbeck, S.C. 1976. An analysis of water flow in dry snow. Water Resour. Res., 12(3), 523-527.
7. Fausto, R.S., A.P. Ahlstrøm, D. Van As, C.E. Bøggild and S.J. Johnsen. 2009. A new present-day temperature parameterization for Greenland. J. Glaciol., 55(189), 95-105.
8. Fettweis, X. 2007. Reconstruction of the 1979-2006 Greenland ice sheet surface mass balance using the regional climate model MAR. Cryosphere, 1(1), 21-40.
9. Greve, R. 2005. Relation of measured basal temperatures and the spatial distribution of the geothermal heat flux for the Greenland ice sheet. Ann. Glaciol., 42, 424-432.
10. Hanna, E. and 8 others. 2008. Increased runoff from melt from the Greenland Ice Sheet: a response to global warming. J. Climate, 21(2), 331-341.
11. Herron, M.M. and C.C. Langway, Jr. 1980. Firn densification: an empirical model. J. Glaciol., 25(93), 373-385.
12. Hock, R. 2003. Temperature index melt modelling in mountain areas. J. Hydrol., 282(1-4), 104-115.
13. Hooke, R.LeB. 2005. Principles of glacier mechanics. Second edition. Cambridge, etc., Cambridge University Press.
14. Huybrechts, P. and J. de Wolde. 1999. The dynamic response of the Greenland and Antarctic ice sheets to multiple-century climatic warming. J. Climate, 12(8), 2169-2188.
15. Janssens, I. and P. Huybrechts. 2000. The treatment of meltwater retardation in mass-balance parameterizations of the Greenland ice sheet. Ann. Glaciol., 31, 133-140.
16. Lefebre, F., H. Gallée, J.P. van Ypersele and P. Huybrechts. 2002. Modelling of large-scale melt parameters with a regional climate model in south Greenland during the 1991 melt season. Ann. Glaciol., 35, 391-397.
17. Li, J. and H.J. Zwally. 2002. Modeled seasonal variations of firn density induced by steady-state surface air-temperature cycle. Ann. Glaciol., 34, 299-302.
18. Li, J., H.J. Zwally, H. Cornejo and D. Yi. 2003. Seasonal variation of snow-surface elevation in North Greenland as modeled and detected by satellite radar altimetry. Ann. Glaciol., 37, 233-238.
19. Li, J., H.J. Zwally and J.C. Comiso. 2007. Ice sheet elevation changes caused by variations of the firn compaction rate induced by satellite-observed temperature variations (1982-2003). Ann. Glaciol., 46, 8-13.
20. Paterson, W.S.B. 1994. The physics of glaciers. Third edition. Oxford, etc., Elsevier.
21. Pfeffer, W.T., M.F. Meier and T.H. Illangasekare. 1991. Retention of Greenland runoff by refreezing: implications for projected future sea level change. J. Ceophys. Res., 96(C12), 22,117-22,124.
22. Reeh, N. 1991. Parameterization of melt rate and surface temperature on the Greenland ice sheet. Polarforschung, 59(3), 113-128.
23. Reeh, N. 2008. A nonsteady-state firn-densification model for the percolation zone of a glacier. J. Ceophys. Res., 113(F3), F03023. (10.1029/2007JF000746.
24. Reeh, N., D.A. Fisher, R.M. Koerner and H.B. Clausen. 2005. An empirical firn-densification model comprising ice lenses. Ann. Glaciol., 42, 101-106.
25. Ritz, C, A. Fabre and A. Letréguilly. 1996. Sensitivity of a Greenland ice sheet model to ice flow and ablation parameters: consequences for the evolution through the last glacial cycle. Climate Dyn., 13(1), 11-23.
26. Solomon, S. and 29 others. 2007. Technical summary. In Solomon, S. and 7 others, eds. Climate change 2007: the physical science basis. Contribution of Working Croup I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge, etc., Cambridge University Press, 21-87.
27. Tarasov, L. and W.R. Peltier. 1999. The impact of thermo-mechanical ice sheet coupling on a model of the 100kyr ice-age cycle. J. Ceophys. Res., 104(D8), 9517-9545.
28. Wankiewicz, A. 1979. A review of water movement in snow. In Colbeck, S.C. and M. Ray, eds. Proceedings of Modeling of Snow Cover Runoff, 26-28 September 1978, Hanover, New Hampshire. Hanover, NH, US Army Corps of Engineers. Cold Regions Research and Engineering Laboratory, 222-252.
29. Zwally, H.J. and J. Li. 2002. Seasonal and interannual variations of firn densification and ice-sheet surface elevation at Greenland summit. J. Glaciol., 48(161), 199-207.