%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Sicart, Jean-Emmanuel
%A Arnaud, Yves
%T Preliminary spectral characterization of snow in a high altitude tropical glacier and potential effects of impurities in snow on albedo of tropical glaciers
%D 2007
%L fdi:010042479
%G ENG
%J Hydrological Processes
%@ 0885-6087
%K albedo ; aerosol ; glacier ; snow ; tropics ; Bolivia ; energy balance
%M ISI:000252167600010
%N 26
%P 3642-3644
%R 10.1002/hyp.6741
%U https://www.documentation.ird.fr/hor/fdi:010042479
%> https://www.documentation.ird.fr/intranet/publi/2008/02/010042479.pdf
%V 21
%W Horizon (IRD)
%X This paper presents some preliminary measurements of snow spectral reflectance on the tropical Bolivian Zongo glacier. Measurements show a correct agreement with theoretical spectral albedo of pure snow in the near infrared region, but lower values in the visible region (by 10-20%) probably due to aerosols contained in snow. Impurity contents ranged from 10 to 100 ppmw in one-week-old snow collected from the Zongo glacier, but measurements are scarce. Large amounts of snowfall partly compensate the proximity of dust sources in mid-latitude glaciers, whereas on outer-tropical glaciers precipitations are not abundant and are very seasonal, and sources of aerosols are proximate.
%$ 062