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A model for the snow water equivalent derived from stratigraphy observations in northern Sweden
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
Institutionen för naturgeografi, Stockholms universitet.
2015 (English)In: Hydrology Research, ISSN 1998-9563, Vol. 46, no 6, 984-995 p.Article in journal (Refereed) Published
Abstract [en]

A new parameterization of snow water equivalent (SWE) based on snow depth (HS)has been developed from observations made in northern Sweden. When applyingprevious SWE parameterization from the Alps on observations from northern Sweden,the SWE values are systematically 20% lower. The new SWE parameterization isderived from a snow layer density regression model using snow layer hardness andsnow particle size. The model was evaluated with a detailed field reference dataset,and then applied to the long term Abisko Scientific Research Station stratigraphicsnowpack dataset. The model enables a regional adjustment of snow layer densityvalues for northern Swedish conditions. The snow layer density model provides anaccurate estimation of snow bulk density used to derive the SWE parameterizationbased solely on HS. Snow depth observations are regularly made on a daily basis; byapplying our new parameterization, daily values of SWE can be obtained for northernScandinavian conditions, which e.g. can be used for hydropower production planningand risk assessments.

Place, publisher, year, edition, pages
IWA Publishing , 2015. Vol. 46, no 6, 984-995 p.
Keyword [en]
Snow density, snow hardness, snow particle size, snow water equivalent
National Category
Physical Geography
Research subject
URN: urn:nbn:se:uu:diva-270197DOI: 10.2166/nh.2015.120ISI: 000368317600011OAI: oai:DiVA.org:uu-270197DiVA: diva2:887542
Swedish National Space Board, D70/07:1-2, D116/09:1-2, 139/10:1
Available from: 2015-12-22 Created: 2015-12-22 Last updated: 2016-02-16Bibliographically approved

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Johansson, Cecilia
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