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June 18, 2026WaterOpen Access

Flood Propagation and Inundation Responses Across the Sudd Wetland

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Authors

RGRobert GallaUniversity of YamanashiHIHiroshi IshidairaTakeda (Japan)JMJun MagomeTakeda (Japan)

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Implication

Randomized trial examines flood dynamics in South Sudan's wetlands, suggesting hydrological connections influence flooding.

Key Points

  • The research aims to understand how upstream hydrological conditions affect flood dynamics in South Sudan's wetland regions.
  • Utilized Cyclone Global Navigation Satellite System (CYGNSS) remote sensing data and water-level altimetry from Lake Victoria and the River Nile.
  • Employed moving block bootstrap cross-correlation and Gaussian process modeling to analyze flood propagation delays.
  • Validated findings with flood event reports from the Displacement Tracking Matrix (DTM).
  • Flood signals took approximately 106 days during the wet season (95% CI: 60–150 days) to reach the River Nile at Mangalla.
  • Dry season lag times were around 134 days (95% CI: 75–195 days) for the same area.
  • The analysis indicated significant statistical stationarity with ADF statistics below −7, supporting the accuracy of propagation estimates.

Cite This Study

Galla et al. (2026) studied this question.

synapsesocial.com/papers/6a338d85630953a74978e68ehttps://doi.org/10.3390/w18121477
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