Mapping Evapotranspiration of Agricultural Areas in Ghana.

Autor: Aidoo K; Remote Sensing and Climate Center, Ghana Space Science and Technology Institute, Accra, Ghana., Browne Klutse NA; Department of Physics, University of Ghana, Accra, Ghana.; African Institute of Mathematical Sciences, Kigali, Rwanda., Asare K; Remote Sensing and Climate Center, Ghana Space Science and Technology Institute, Accra, Ghana., Botchway CG; Remote Sensing and Climate Center, Ghana Space Science and Technology Institute, Accra, Ghana., Fosuhene S; Remote Sensing and Climate Center, Ghana Space Science and Technology Institute, Accra, Ghana.
Jazyk: angličtina
Zdroj: TheScientificWorldJournal [ScientificWorldJournal] 2021 Apr 17; Vol. 2021, pp. 8878631. Date of Electronic Publication: 2021 Apr 17 (Print Publication: 2021).
DOI: 10.1155/2021/8878631
Abstrakt: Climate change is having an adverse effect on the environment especially in sub-Sahara Africa, where capacity for natural resource management such as water is very low. The scope of the effect on land use types have to be estimated to inform proper remedy. A combined estimation of transpiration and evaporation from plants and soil is critical to determine annual water requirement for different land use. Evapotranspiration (ET) is a major component in the world hydrological cycle, and understanding its spatial dimensions is critical in evaluating the effects it has on regional land use. A measure of this component is challenging due to variation in rainfall and environmental changes. The mapping evapotranspiration with high resolution and internalized calibration (METRIC) method is employed to create evapotranspiration map for land use, using remotely sensed data by satellite, processed, and analyzed in ArcGIS. Normalized difference vegetation index (NDVI) was related to the availability of water for vegetation on different land use, and the results indicate a high evapotranspiration for vegetated land use with high NDVI than land use with low NDVI.
Competing Interests: The authors declare that they have no conflicts of interest.
(Copyright © 2021 Kenneth Aidoo et al.)
Databáze: MEDLINE
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