Abstract

HERNANDEZ LOZANO, Rodolfo  and  PAVON, Numa P.. Index for water body monitoring using remote sensing. Acta univ [online]. 2024, vol.34, e3814.  Epub Sep 06, 2024. ISSN 2007-9621.  https://doi.org/10.15174/au.2024.3814.

Water bodies' overexploitation, droughts, and the impact of climate change are reducing water availability for human activities. Due to the above, severe economic and social problems occur. Therefore, an essential task is to monitor the state of surface water bodies. For this, a fast, accurate, and economical alternative is doing so through remote sensing techniques using satellite remote sensors. These techniques help obtain information at a distance from a specific object on the earth's surface. The objective of this study was to review, using PRISMA method, the applications of remote sensors in monitoring water bodies to provide alternatives for using water indices. The modified normalized difference water index (MNDWI) and the automated water withdrawal index (AWEI) are the best suited options, because they are easy to construct and interpret; additionally, they have high precision.

Keywords : Remote sensing; water indices; rivers; drought; monitoring.

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