Thermal remote sensing data for estimating evapotranspiration on a Regional Scale (A conceptual approach)

  • S. Opoku-Duah Council for Scientific & Industrial Research, Water Research Institute (CSIR-WRI), P.O. Box M 32, Accra, Ghana.
  • K. Kankam Yeboah Council for Scientific & Industrial Research, Water Research Institute (CSIR-WRI), P.O. Box M 32, Accra, Ghana.
  • S. Adu-Prah Remote Sensing Applications Unit, Dept. of Geography & Resource Development, University of Ghana, Legon, Ghana.

Abstract



The amount of evapotranspiration (ET) is an essential input for modelling the water balance equation, and also has substantial value in the overall estimation of available water for long-term planning of the water resources of regional or very large river basins, such as the Nile, Congo, Niger and Volta. As an alternative to in-situ hydro -physical measurements, theoretical and computer-based models, a method that applies thermal infrared band (6) of Landsat TM data for the estimation of ET on a basin-wide scale is presented.

Journal of Applied Science and Technology (JAST) , Vol. 5, Nos. 1 & 2, 2000, pp. 98 - 107
Published
2004-05-17
Section
Articles

Journal Identifiers


eISSN: 0855-2215