Preliminary spectral characterization of snow in a high altitude tropical glacier and potential effects of impurities in snow on albedo of tropical glaciers - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Hydrological Processes Year : 2007

Preliminary spectral characterization of snow in a high altitude tropical glacier and potential effects of impurities in snow on albedo of tropical glaciers

Abstract

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.

Domains

Glaciology

Dates and versions

insu-00377271 , version 1 (21-04-2009)

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Jean Emmanuel Sicart, Yves Arnaud. Preliminary spectral characterization of snow in a high altitude tropical glacier and potential effects of impurities in snow on albedo of tropical glaciers. Hydrological Processes, 2007, 21 (26), pp.3642 à 3644. ⟨10.1002/hyp.6741⟩. ⟨insu-00377271⟩
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