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May 6, 2026˜The œinternational archives of the photogrammetry, remote sensing and spatial information sciences/International archives of the photogrammetry, remote sensing and spatial information sciencesOpen Access

SAR-NDWI Integration in Ephemeral Water Detection Mapping for Hydrological Analysis in ASALs

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Authors

NMNelson Mwova

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Implication

Remote sensing shows improved hydrological analysis in ASALs, indicating enhanced ephemeral water detection accuracy.

Key Points

  • To map water availability and improve detection accuracy of ephemeral water in ASALs using remote sensing.
  • Utilized a multi-sensor remote sensing approach combining Synthetic Aperture Radar and optical data.
  • Analyzed water resources in Marsabit and Isiolo Counties, Kenya for 2019 and 2020.
  • Developed a Multi-Sensor Water Index to enhance detection of dynamic hydrological processes.
  • Highlighted the effectiveness of Synthetic Aperture Radar in detecting ephemeral water sources.
  • Revealed a larger area of water detected by SAR compared to Landsat 8's common water identification.
  • Demonstrated the potential of advanced remote sensing techniques for water resource management in arid regions.

Cite This Study

Nelson Mwova (2026) studied this question.

synapsesocial.com/papers/69fa979b04f884e66b531863https://doi.org/10.5194/isprs-archives-xlviii-m-10-2025-169-2026
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