Brief communication: Improved simulation of the present-day Greenland firn layer (1960–2016)

作者: Stefan R. M. Ligtenberg , Peter Kuipers Munneke , Brice P. Y. Noël , Michiel R. van den Broeke

DOI: 10.5194/TC-12-1643-2018

关键词: PercolationMeltwaterGreenland ice sheetPresent dayClimatologyLayer (electronics)FirnSurface runoffClimate modelGeology

摘要: Abstract. By providing pore space for storage or refreezing of meltwater, the Greenland ice sheet firn layer strongly modulates runoff. Correctly representing the firn is therefore crucial Greenland (surface) mass balance studies. Here, we present a simulation with model IMAU-FDM forced by latest output regional climate model RACMO2, version 2.3p2. In percolation zone, much improved agreement found firn density and temperature observations. A full Greenland firn at high temporal (10 days) spatial (11 km) resolution available for period 1960–2016.

参考文章(19)
Neil F. Humphrey, Joel T. Harper, W. Tad Pfeffer, Thermal tracking of meltwater retention in Greenland's accumulation area Journal of Geophysical Research. ,vol. 117, ,(2012) , 10.1029/2011JF002083
W. T. Pfeffer, J. Brown, X. Fettweis, J. Harper, N. Humphrey, Greenland ice-sheet contribution to sea-level rise buffered by meltwater storage in firn Nature. ,vol. 491, pp. 240- 243 ,(2012) , 10.1038/NATURE11566
Richard R. Forster, Jason E. Box, Michiel R. van den Broeke, Clément Miège, Evan W. Burgess, Jan H. van Angelen, Jan T. M. Lenaerts, Lora S. Koenig, John Paden, Cameron Lewis, S. Prasad Gogineni, Carl Leuschen, Joseph R. McConnell, Extensive liquid meltwater storage in firn within the Greenland ice sheet Nature Geoscience. ,vol. 7, pp. 95- 98 ,(2014) , 10.1038/NGEO2043
W. Tad Pfeffer, Mark F. Meier, Tissa H. Illangasekare, Retention of Greenland runoff by refreezing: Implications for projected future sea level change Journal of Geophysical Research. ,vol. 96, pp. 22117- 22124 ,(1991) , 10.1029/91JC02502
S. R. M. Ligtenberg, M. M. Helsen, M. R. van den Broeke, An improved semi-empirical model for the densification of Antarctic firn The Cryosphere. ,vol. 5, pp. 809- 819 ,(2011) , 10.5194/TC-5-809-2011
B. Noël, W. J. van de Berg, E. van Meijgaard, P. Kuipers Munneke, R. S. W. van de Wal, M. R. van den Broeke, Evaluation of the updated regional climate model RACMO2.3: summer snowfall impact on the Greenland Ice Sheet The Cryosphere. ,vol. 9, pp. 1831- 1844 ,(2015) , 10.5194/TC-9-1831-2015
Robert J. Arthern, David G. Vaughan, Andrew M. Rankin, Robert Mulvaney, Elizabeth R. Thomas, In situ measurements of Antarctic snow compaction compared with predictions of models Journal of Geophysical Research. ,vol. 115, ,(2010) , 10.1029/2009JF001306
P Kuipers Munneke, SRM Ligtenberg, BPY Noël, IM Howat, JE Box, E Mosley-Thompson, JR McConnell, K Steffen, JT Harper, SB Das, MR Van Den Broeke, None, Elevation change of the Greenland Ice Sheet due to surface mass balance and firn processes, 1960–2014 The Cryosphere. ,vol. 9, pp. 2009- 2025 ,(2015) , 10.5194/TC-9-2009-2015
Ellyn M. Enderlin, Ian M. Howat, Seongsu Jeong, Myoung-Jong Noh, Jan H. van Angelen, Michiel R. van den Broeke, An improved mass budget for the Greenland ice sheet Geophysical Research Letters. ,vol. 41, pp. 866- 872 ,(2014) , 10.1002/2013GL059010
Horst Machguth, Mike MacFerrin, Dirk van As, Jason E. Box, Charalampos Charalampidis, William Colgan, Robert S. Fausto, Harro A. J. Meijer, Ellen Mosley-Thompson, Roderik S. W. van de Wal, Greenland meltwater storage in firn limited by near-surface ice formation Nature Climate Change. ,vol. 6, pp. 390- 393 ,(2016) , 10.1038/NCLIMATE2899