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(Article of periodic en Anglais - 2012)

Document title

Evaluation of gridded precipitation for Norway using glacier mass-balance measurements

Authors(s) and Affiliation(s)

ENGELHARDT M. (1) ; SCHULER T.V. (1) ; ANDREASSEN L.M. (2) ;
(1) Dep. of Geosciences, Physical Geography, Univ., Oslo, NORVEGE
(2) Norwegian Water Resources and Energy Directorate (NVE), Oslo, NORVEGE

Abstract

Using gridded temperature and precipitation data from the service seNorge, surface mass balance was modeled for 5 Norwegian glaciers of different size and climate conditions. The model accounts for melting of snow and ice by applying a degree-day approach and considers refreezing assuming a snow depth depended storage. Calculated values are compared to point measurements of glacier winter mass balance. On average for each glacier, modeled and measured surface mass-balance evolutions agree well, but results at individual stake locations show large variability. Two types of problems were identified : first, grid data were not able to capture spatial mass balance variability at smaller glaciers. Second, a significant increase in the bias between model and observations with altitude for one glacier suggested that orographic enhancement of precipitation was not appropriately captured by the gridded interpolation

Source

Article of periodic

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2012, vol. 94, no4 [pp. 501-509]

Bibliographic references : 21 ref.

Collation : 5 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1111/j.1468-0459.2012.00473.x

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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