Impact of spatial resolution on the modelling of the Greenland ice sheet surface mass balance between 1990–2010, using the regional climate model MAR
-
Published:2012-06-27
Issue:3
Volume:6
Page:695-711
-
ISSN:1994-0424
-
Container-title:The Cryosphere
-
language:en
-
Short-container-title:The Cryosphere
Author:
Franco B.,Fettweis X.,Lang C.,Erpicum M.
Abstract
Abstract. With the aim to force an ice dynamical model, the Greenland ice sheet (GrIS) surface mass balance (SMB) was modelled at different spatial resolutions (15–50 km) for the period 1990–2010, using the regional climate model MAR (Modèle Atmosphérique Régional) forced by the ERA-INTERIM reanalysis. This comparison revealed that (i) the inter-annual variability of the SMB components is consistent within the different spatial resolutions investigated, (ii) the MAR model simulates heavier precipitation on average over the GrIS with decreasing spatial resolution, and (iii) the SMB components (except precipitation) can be derived from a simulation at lower resolution with an "intelligent" interpolation. This interpolation can also be used to approximate the SMB components over another topography/ice sheet mask of the GrIS. These results are important for the forcing of an ice dynamical model needed to enable future projections of the GrIS contribution to sea level rise over the coming centuries.
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
Reference39 articles.
1. Bamber, J. L., Ekholm, S., and Krabill, W.: A new, high-resolution digital elevation model of Greenland fully validated with airborne laser altimeter data, J. Geophys. Res., 106, 6733–6745, 2001a. 2. Bamber, J. L., Layberry, R. L., and Gogineni, S. P.: A new ice thickness and bed data set for the Greenland ice sheet 1. Measurement, data reduction, and errors, J. Geophys. Res., 106, 33773–33780, 2001b. 3. Box, J. E. and Cohen, A. E.: Upper-air temperatures around Greenland: 1964–2005, Geophys. Res. Lett., 33, L12706, https://doi.org/10.1029/2006GL025723, 2006. 4. Box, J. E., Bromwich, D. H., Veenhuis, B. A., Bai, L.-E., Stroeve, J. C., Rogers, J. C., Steffen, K., Haran, T., and Wang, S.-H.: Greenland ice sheet surface mass balance variability (1988–2004) from calibrated polar MM5 output, J. Climate, 19, 2783–2800, 2006. 5. Box, J. E., Cappelen, J., Decker, D., Fettweis, X., Mote, T., Tedesco, M., and van de Wal, R. S. W.: Greenland, in: Arctic Report Card 2010, available at: http://www.arctic.noaa.gov/reportcard (last access: 14 January 2012), 2010.
Cited by
69 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|