Articles | Volume 22, issue 11
Nat. Hazards Earth Syst. Sci., 22, 3679–3700, 2022
https://doi.org/10.5194/nhess-22-3679-2022
Nat. Hazards Earth Syst. Sci., 22, 3679–3700, 2022
https://doi.org/10.5194/nhess-22-3679-2022
Research article
15 Nov 2022
Research article | 15 Nov 2022

Timing landslide and flash flood events from SAR satellite: a regionally applicable methodology illustrated in African cloud-covered tropical environments

Axel A. J. Deijns et al.

Data sets

Deijns et al. NHESS - SAR Timing - GH Event Inventories Deijns et al. https://doi.org/10.5281/zenodo.7198322

Sentinel-1: Copernicus Sentinel data Copernicus https://search.asf.alaska.edu/#/

Model code and software

Deijns et al. NHESS - SAR Timing - Scripts A. A. J. Deijns https://doi.org/10.5281/zenodo.7198346

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Short summary
Landslides and flash floods are rainfall-induced processes that often co-occur and interact, generally very quickly. In mountainous cloud-covered environments, determining when these processes occur remains challenging. We propose a regional methodology using open-access satellite radar images that allow for the timing of landslide and flash floods events, in the contrasting landscapes of tropical Africa, with an accuracy of up to a few days. The methodology shows potential for transferability.
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