文章基本信息

标题：Inverse solution of surface mass balance of Midtre Lovénbreen, Svalbard
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作者：ILONA VÄLISUO ; THOMAS ZWINGER ; JACK KOHLER 等
期刊名称：Journal of Glaciology
印刷版ISSN：0022-1430
电子版ISSN：1727-5652
出版年度：2017
卷号：63
期号：240
页码：593-602
DOI：10.1017/jog.2017.26
出版社：Cambridge University Press
摘要：ABSTRACT We investigate the temporal evolution and spatial distribution of mass balance on the glacier Midtre Lovénbreen, Svalbard. Running a diagnostic high-resolution full-stress ice flow model with geometries obtained from five digital elevation models (DEMs) in the period 1962–2005, we compute velocity fields and linearly interpolated volume change of the glacier. We evaluate the kinematic free surface equation using these model outputs to solve the surface mass balance (SMB). Monitoring data on Midtre Lovénbreen allows model results to be compared with point measurements from the glacier over several decades. This method allows us to estimate the mass balance over the entire glacier surface, beyond the spatially limited field measurements, and to derive past SMB over an extended time period.
关键词：Arctic glaciology;glacier mass balance;glacier modelling;glaciological model experiments; surface mass budget