Temporal analysis of water volume at Capoeira Reservoir Mãe d’Água, Paraíba, Brazil
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 1
Abstract
The “Polígono das Secas” is a region in the Northeast of Brazil that stands out by its low precipitation, high temperatures, and dry climate. Geoprocessing and the remote sensing techniques used in this research demonstrate the effectiveness for the monitoring of environmental resources. The objective of this work was to use the normalized difference water index (NDWI) in a comparative analysis of the reduction of the water surface area of the dry periods, November 2009 and December 2016, of the Capoeira Reservoir using images from the Landsat 5 TM satellite and Landsat 8 OLI, respectively. The results showed high values of NDWI in 2009, corresponding to La Niña period, with high precipitation and overflow of reservoirs. NDWI values in 2016 were low due to the low precipitations typical of El Niño periods. NDWI can be used to detect and monitor the presence of water and is an excellent tool to assist water monitoring agencies through the monitoring of rivers, lakes, and reservoirs in regions as the northeastern of Brazi
Authors and Affiliations
Denize Monteiro dos Anjos, Danilo de Medeiros Arcanjo Soares, Ewerton Medeiros Simões, Ana Claudia Caetano Pinheiro Leite, Talytta Menezes Ramos, Ivonete Alves Bakke
Keywords
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- EP ID EP253483
- DOI 10.18378/rvads.v12i1.5115
- Views 122
- Downloads 0
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