Articles | Volume 11, issue 1
The Cryosphere, 11, 191–215, 2017
https://doi.org/10.5194/tc-11-191-2017
The Cryosphere, 11, 191–215, 2017
https://doi.org/10.5194/tc-11-191-2017

Research article 26 Jan 2017

Research article | 26 Jan 2017

Diagnosing the decline in climatic mass balance of glaciers in Svalbard over 1957–2014

Torbjørn Ims Østby et al.

Data sets

ERA-40 and ERA-Interim data ECMWF http://apps.ecmwf.int/datasets/

MODIS surface Albedo National Snow and Ice Data Center ftp://n5eil01u.ecs.nsidc.org/SAN/

MODIS surface temperatures Land Processes Distributed Active Archive Center https://e4ftl01.cr.usgs.gov/MODIS_Dailies_E/

Weather station data Norwegian Meteorological Office http://eklima. met.no

Weather station data University Centre of Svalbard http://www.unis.no/resources/weather-stations/

Basic and other measurements of radiation from the Baseline Surface Radiation Network (BSRN) Station Ny-Ålesund in the years 1992 to 2013 M. Maturilli, A. Herber, and G. König-Langlo https://doi.org/10.1594/PANGAEA.150000

Glacier outlines and digital elevation models C. Nuth http://glims.org/RGI/rgi50_files/07_rgi50_Svalbard.zip

Glacier-wide mass balances World Glacier Monitoring Service http://wgms.ch/latest-glacier-mass-balance-data/

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Short summary
We present modelled climatic mass balance for all glaciers in Svalbard for the period 1957–2014 at 1 km resolution using a coupled surface energy balance and snowpack model, thereby closing temporal and spatial gaps in direct and geodetic mass balance estimates. Supporting previous studies, our results indicate increased mass loss over the period. A detailed analysis of the involved energy fluxes reveals that increased mass loss is caused by atmospheric warming further amplified by feedbacks.