标题：Cartografía de zonas probables de salida de aludes en el Alto Gállego (Pirineo Central Aragonés) mediante el empleo de Sistemas de Información Geográfica
期刊名称：Cuadernos de Investigación Geográfica = Geographical Research Letters
印刷版ISSN：0211-6820
电子版ISSN：1697-9540
出版年度：2010
卷号：36
期号：1
页码：27-41
DOI：10.18172/cig.1225
出版社：Universidad de La Rioja
摘要：We present in this work the cartography of probable avalanche starting zones in the Alto Gállego valley (Spanish central Pyrenees) made by using a Geographical Information System (ArcGIS). The conditioning factors used to generate the general model for probable avalanche starting zones (MGZPSA) were: altitude of the monthly regional 0ºC isotherm (December-April), slope and surface cover. The additional incorporation of the monthly solar radiation variable allowed to classify these areas into three susceptibility sectors according to the radiation inputs and their subsequent contribution to the instability of the snowpack (solar radiation model; MRSZPSA). The two models were validated using two control areas with contrasted aspect located in the high sector of the valley.
关键词：cartography; avalanche starting zones; Geographical Information Systems;Alto Gallego; Central Pyrenees.
