11611faa-2bba-47b7-bd2c-e067466404bd eng f9bb67c2-6d52-4f3b-aec1-dc61c0438e36 Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org/ 2011-09-28T17:32:24 ISO 19115:2003/19139 1.0 Spatial distribution of debris thickness and melting from remote-sensing and meteorological data, at debris-covered Baltoro glacier, Karakoram, Pakistan 2011-06-10T08:00:00 Volume: 48 Issue: 1 Pages: 49-57 Annals Of Glaciology (2008) 02603055 A distributed surface energy-balance study was performed to determine sub-debris ablation across a large part of Baltoro glacier, a wide debris-covered glacier in the Karakoram range, Pakistan. The study area is similar to 124 km(2). The study aimed primarily at analyzing the influence of debris thickness on the melt distribution. The spatial distribution of the physical and thermal characteristics of the debris was calculated from remote-sensing (ASTER image) and field data. Meteorological data from an automatic weather station at Urdukas (4022 m a.s.l.), located adjacent to Baltoro glacier on a lateral moraine, were used to calculate the spatial distribution of energy available for melting during the period 1-15 July 2004. The model performance was evaluated by comparisons with field measurements for the same period. The model is reliable in predicting ablation over wide debris-covered areas. It underestimates melt rates over highly crevassed areas and water ponds with a high variability of the debris thickness distribution in the vicinity, and over areas with very low debris thickness (<0.03 m). We also examined the spatial distribution of the energy-balance components (global radiation and surface temperature) over the study area. The results allow us to quantify, for the study period, a meltwater production of 0.058 km(3). Publications on the scientific researches performed at high elevations both on the Alps and on extra-Alpine mountain ranges (Himalaya and Karakoram). G. Diolaiuti C D'Agata C Smiraglia G Tartari E Vuillermoz A Lambrecht C Mayer C Mihalcea https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=11611faa-2bba-47b7-bd2c-e067466404bd&fname=mountain_witness__s.png thumbnail png SHARE eng -180 180 -90 90 http://www.evk2cnr.org/cms/en/share/publications?filter0=wp%201.2 WWW:LINK-1.0-http--related Publications Evk2CNR-Glaciology http://www.mendeley.com/research/spatial-distribution-debris-thickness-melting-remotesensing-meteorological-data-debriscovered-baltoro-glacier-karakoram-pakistan/ WWW:LINK-1.0-http--related Abstract:"Spatial distribution of debris thickness and melting from remote-sensing and meteorological data, at debris-covered Baltoro glacier, Karakoram, Pakistan" Spatial distribution of debris thickness and melting from remote-sensing and meteorological data, at debris-covered Baltoro glacier, Karakoram, Pakistan by C Mihalcea, C Mayer, G Diolaiuti, C D'Agata, C Smiraglia, A Lambrecht, E Vuillermoz, G Tartari Annals Of Glaciology (2008) Volume: 48, Issue: 1, Pages: 49-57 ISSN: 02603055 DOI: 10.3189/172756408784700680