Estimation and Mapping of Land Surface Temperature From AATSR Images And GIS: A Case Study In Kolondieba-Tiendaga Basin In Sudano-Sahelian Climate, Mali

Abstract

The knowledge of the various terms which intervene in the energy balance of surface is essential at the same time for the hydrologists, the amenagists, the agronomists, the meteorologists, and the climatologists. The land surface temperature of the making ground left the key parameters of this assessment, plays a fundamental part in the processes of interaction hydrosphere-biosphere, atmosphere. It represents, the temperature of canopy of the vegetation for the covered zones of vegetation, and the temperature of canopy of the vegetation plus that of the surface of the ground, for the zones of scattered vegetation. While it represents the temperature of surface of the ground for the zones bar soil. This land surface temperature can be collected through two approaches: conventional approaches, and them approaches of remote sensingThe conventional methods make it possible to collect the temperature of surface of the ground starting from measurements of weather stations. On the other hand, the approaches of remote sensing make it possible, as for them, to estimate the land surface through the use of model of energy balance of surface. In this study, model SEBS was used on satellite data AATSR to estimate and mapping the land surface temperature, on the catchment area of Kolondièba-Tiendaga, in southern Mali zone. These results show values of land surface temperature between 303 and 296 (°K) for standard deviations of 2, 66 and 0, 945. These results are similar to those already found elsewhere, in West Africa with the same types given of satellite images AASTR.Geoscience & Remote SensingCivil Engineering and Geoscience