Articles | Volume 22, issue 11
https://doi.org/10.5194/nhess-22-3679-2022
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, Olivier Dewitte, Wim Thiery, Nicolas d'Oreye, Jean-Philippe Malet, and François Kervyn

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Cited articles

Aimaiti, Y., Liu, W., Yamazaki, F., and Maruyama, Y.: Earthquake-induced landslide mapping for the 2018 Hokkaido Eastern Iburi earthquake using PALSAR-2 data, Remote Sens., 111, 2351, https://doi.org/10.3390/rs11202351, 2019. 
Ali, K., Bajracharyar, R. M., and Raut, N.: Advances and challenges in flash flood risk assessment: A review, J. Geogr. Nat. Disast., 7, 1–6, https://doi.org/10.4172/2167-0587.1000195, 2017. 
Bai, J.: Estimating multiple breaks one at a time, Econ. Theory, 13, 315–352, https://doi.org/10.1017/S0266466600005831, 1997. 
Balzter, H.: Forest mapping and monitoring with interferometric synthetic aperture radar (InSAR), Prog. Phys. Geogr., 25, 159–177, https://doi.org/10.1177/030913330102500201, 2001. 
Bamler, R.: Principles of synthetic aperture radar, Surv. Geophys., 21, 147–157, https://doi.org/10.1023/A:1006790026612, 2000. 
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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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