Inverse solution of surface mass balance of Midtre Lovénbreen, Svalbard

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 f...

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Bibliographic Details
Published in:Journal of Glaciology
Main Authors: ILONA VÄLISUO, THOMAS ZWINGER, JACK KOHLER
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press 2017
Subjects:
Arctic glaciology
glacier mass balance
glacier modelling
glaciological model experiments
surface mass budget
Environmental sciences
GE1-350
Meteorology. Climatology
QC851-999
Arctic
Svalbard
glacier
Journal of Glaciology
Online Access:https://doi.org/10.1017/jog.2017.26
https://doaj.org/article/1813d048be8d407697c52249b46568b2
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Summary: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.

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