Articles | Volume 10, issue 4
https://doi.org/10.5194/esurf-10-797-2022
https://doi.org/10.5194/esurf-10-797-2022
Research article
 | 
02 Aug 2022
Research article |  | 02 Aug 2022

Unraveling the hydrology and sediment balance of an ungauged lake in the Sudano-Sahelian region of West Africa using remote sensing

Silvan Ragettli, Tabea Donauer, Peter Molnar, Ron Delnoije, and Tobias Siegfried

Related authors

Heterogeneous glacier thinning patterns over the last 40 years in Langtang Himal, Nepal
Silvan Ragettli, Tobias Bolch, and Francesca Pellicciotti
The Cryosphere, 10, 2075–2097, https://doi.org/10.5194/tc-10-2075-2016,https://doi.org/10.5194/tc-10-2075-2016, 2016
Short summary

Related subject area

Cross-cutting themes: Digital Landscapes: Insights into geomorphological processes from high-resolution topography and quantitative interrogation of topographic data
Geomorphic indicators of continental-scale landscape transience in the Hengduan Mountains, SE Tibet, China
Katrina D. Gelwick, Sean D. Willett, and Rong Yang
Earth Surf. Dynam., 12, 783–800, https://doi.org/10.5194/esurf-12-783-2024,https://doi.org/10.5194/esurf-12-783-2024, 2024
Short summary
Evaluating the accuracy of binary classifiers for geomorphic applications
Matthew William Rossi
Earth Surf. Dynam., 12, 765–782, https://doi.org/10.5194/esurf-12-765-2024,https://doi.org/10.5194/esurf-12-765-2024, 2024
Short summary
Massive sediment pulses triggered by a multi-stage 130 000 m3 alpine cliff fall (Hochvogel, DE–AT)
Natalie Barbosa, Johannes Leinauer, Juilson Jubanski, Michael Dietze, Ulrich Münzer, Florian Siegert, and Michael Krautblatter
Earth Surf. Dynam., 12, 249–269, https://doi.org/10.5194/esurf-12-249-2024,https://doi.org/10.5194/esurf-12-249-2024, 2024
Short summary
Multi-sensor monitoring and data integration reveal cyclical destabilization of the Äußeres Hochebenkar rock glacier
Lea Hartl, Thomas Zieher, Magnus Bremer, Martin Stocker-Waldhuber, Vivien Zahs, Bernhard Höfle, Christoph Klug, and Alessandro Cicoira
Earth Surf. Dynam., 11, 117–147, https://doi.org/10.5194/esurf-11-117-2023,https://doi.org/10.5194/esurf-11-117-2023, 2023
Short summary
Size, shape and orientation matter: fast and semi-automatic measurement of grain geometries from 3D point clouds
Philippe Steer, Laure Guerit, Dimitri Lague, Alain Crave, and Aurélie Gourdon
Earth Surf. Dynam., 10, 1211–1232, https://doi.org/10.5194/esurf-10-1211-2022,https://doi.org/10.5194/esurf-10-1211-2022, 2022
Short summary

Cited articles

Albergel, J.: Sécheresse, désertification et resources en eau de surface – application aux petits bassins du Burkina Faso, IAHS-AISH publication, 168, 355–365, https://iahs.info/uploads/dms/iahs_168_0355.pdf (last access: 23 July 2022), 1987. a
Alduchov, O. A. and Eskridge, R. E.: Improved Magnus form approximation of saturation vapor pressure, J. Appl. Meteorol., 35, 601–609, https://doi.org/10.1175/1520-0450(1996)035<0601:IMFAOS>2.0.CO;2, 1996. a
Amogu, O.: La dégradation des espaces sahéliens et ses conséquences sur l'alluvionnement du fleuve Niger moyen, Ph.D. thesis, Université Joseph Fourier Grenoble 1, 425 p., https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers11-03/010046965.pdf, (last access: 23 July 2022), 2009. a
Amogu, O., Descroix, L., Yéro, K. S., Breton, E. L., Mamadou, I., Ali, A., Vischel, T., Bader, J. C., Moussa, I. B., Gautier, E., Boubkraoui, S., and Belleudy, P.: Increasing river flows in the Sahel?, Water (Switzerland), 2, 170–199, https://doi.org/10.3390/w2020170, 2010. a
Armon, M., Dente, E., Shmilovitz, Y., Mushkin, A., Cohen, T. J., Morin, E., and Enzel, Y.: Determining Bathymetry of Shallow and Ephemeral Desert Lakes Using Satellite Imagery and Altimetry, Geophys. Res. Lett., 47, 1–9, https://doi.org/10.1029/2020GL087367, 2020. a, b
Download
Short summary
This paper presents a novel methodology to identify and quantitatively analyze deposition and erosion patterns in ephemeral ponds or in perennial lakes with strong water level fluctuations. We apply this method to unravel the water and sediment balance of Lac Wégnia, a designated Ramsar site in Mali. The study can be a showcase for monitoring Sahelian lakes using remote sensing data, as it sheds light on the actual drivers of change in Sahelian lakes.