HR: 11:20h
AN: C42A-05    [Abstracts]
TI: Snow and Glacier Monitoring Using Oblique Terrestrial Photography
AU: * Corripio, J G
EM: Javier.Corripio@ethz.ch
AF: Swiss federal Institute of Technology, ETH, Wolfgang Pauli Strasse 15 IHW - ETH - H”nggerberg HIL G 28.1 , Zurich, 8093 Switzerland
AB: This paper presents the use of photography for monitoring snow change at daily to weekly resolution in several sites of the European Alps. A novel technique for georeferencing oblique photography is presented. This procedure allows a relatively precise geolocation of pixels in a single photography with the aid of a DEM. Further radiometric and topographic corrections and image processing allow the estimation of surface albedo and the recognition of snow patterns and textures. Examples of successful applications are presented, such as for the validation of snow ablation and accumulation models, snow drift and energy balance. The dedicated software, which has been made open source and freely available will presented and explained.
DE: 9820 Techniques applicable in three or more fields
DE: 1827 Glaciology (1863)
DE: 1863 Snow and ice (1827)
DE: 1224 Photogrammetry
DE: 1600 GLOBAL CHANGE (New category)
SC: Cryosphere [C]
MN: 2004 AGU Fall Meeting