Effects of topography and atmosphere on forest classifications of Landsat TM imagery
The analysis of multitemporal satellite images enables the dynamics of forest ecosystems over time to be monitored. However, the use of images from different dates presents several practical difficulties. Amongst the most important problems are the effects on the multitemporal image data of varying topographic and atmospheric conditions. Topography affects both image geometry (scan-line perspective displacements) and image radiometry (slope-aspect effects). The atmospheric conditions at the time of imaging also affect image radiometry. In this paper, the effects of topography and atmosphere on forest classifications of multitemporal Landsat Thematic Mapper (TM) imagery are assessed, and various methods for minimising these effects are illustrated. This research is being carried out as part of the FIRS (Forest Information from Remote Sensing) project at the JRC Ispra.
Bibliographic Reference: Paper presented: International Symposium : Remote Sensing in Forest Studies and Management, Bressanone (IT), December 1-2, 1994
Availability: Available from (1) as Paper EN 38812 ORA
Record Number: 199510637 / Last updated on: 1995-07-07
Original language: en
Available languages: en