Title :
Snow mapping in Alpine areas using medium resolution spectrometric sensors
Author :
Malcher, P. ; Floricioiu, D. ; Rott, H.
Author_Institution :
Inst. for Metrol. & Geophys., Innsbruck Univ., Austria
Abstract :
Algorithms for snow mapping in Alpine areas are developed for the medium resolution imaging spectrometers MODIS and MERIS. A snow classification algorithm, discriminating snow cover in forested areas and open terrain, is presented. Examples of snow cover products are shown for MODIS data. The need for improvement, mainly related to snow/cloud discrimination, is addressed. In addition, the albedo of snow surfaces was derived from at-satellite radiances, applying a model for atmospheric radiative transfer. Capabilities and weaknesses of the model are discussed.
Keywords :
atmospheric techniques; clouds; forestry; snow; terrain mapping; vegetation mapping; Alpine areas; MODIS data; albedo; atmospheric radiative transfer; forested areas; imaging spectrometers; open terrain; satellite radiances; snow classification algorithm; snow mapping; snow surfaces; snow-cloud discrimination; spectrometric sensors; Atmospheric modeling; Image resolution; MERIS; MODIS; Reflectivity; Satellite broadcasting; Snow; Spatial resolution; Spectroscopy; Surface topography;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294603
