Map comparison or traditional mass-balance measurements : which method is better?

Special issue : Methods of mass balance measurements and modeling

Auteurs :
ØSTREM, G.
HAAKENSEN, N.

Description :
A number of Norwegian glaciers were selected in 1960s for long-term mass-balance measurements, to produce necessary hydrological information for hydropower exploitation. Special large-scale glacier maps were produced for field work and data processing. This study is concentrated on comparisons of conventional maps, and the results are compared to cumulative mass-balance data. For the maritime glacier Ålfotbreen, a cumulative mass-balance calculation gives a positive total balance, whereas the map comparison indicates a total negative balance. This indicates a discrepancy between the methods, which must be accounted for.


Type de document :
Congrès

Source :
Workshop on methods of mass balance measurements and modelling, Tarfala, Suede, 1998-08-10, Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 1999, vol. 81, n°. 4, p. 703-711, Collation : Illustration, Références bibliographiques : 14 ref.

Date :
1999

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi