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Temperature Retrieval of Lake Itasy Using Remote Sensing

2018; Volume: 8; Issue: 6 Linguagem: Inglês

2163-2634

J C F Randrianiaina Jerry, I Rakotonirina Rija, R Ratiarimanana Jean, Lahatra Razafindramisa Fils,

Aquatic Ecosystems and Biodiversity

This present study shows the performance of remote sensing coupled with Geographic Information System (GIS) to monitor surface water temperature in Lake Itasy. Lake Itasy is among of the continental lakes of Madagascar. Sited within the volcanic field of the Itasy. Its surface is about 35 km². We derived surface water temperature from Landsat 8 Thermal Infrared Sensor (TIRS) and Operational Land Imager (OLI) sensor data. The results obtained from the processed data reveal that the temperature on the surface lake varied between 19.0°C and 22.6°C on 06 May 2018 while it ranged from 18.1°C and 21.8°C on June 2018. It indicated that Lake Itasy water respects the Malagasy norm in point of view temperature.