Title :
Topographic correction of landsat ETM-images in finnish lapland
Author :
Törmä, Markus ; Härmä, Pekka
Author_Institution :
Geoinf. & Land Use Div., Finnish Environ. Inst., Helsinki, Finland
Abstract :
Different topographic correction methods for Landsat ETM-image were compared. Corrected images were compared using land cover classification and estimation of forest inventory variables. Also the effect of the amount of vegetation to the correction coefficients were studied. Generally the best correction methods were Ekstrand and C-correction when their coefficients were determined by stratifying data according to the amount of vegetation.
Keywords :
forestry; image classification; maximum likelihood estimation; regression analysis; terrain mapping; topography (Earth); vegetation mapping; C-correction; Ekstrand correction; finnish lapland; forest inventory variables; landsat ETM-images; topographic correction methods; vegetation; Databases; Equations; Europe; Lighting; Production; Reflectivity; Remote sensing; Satellites; Sun; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294876
