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Phenomenological model of suspended sediment transport in a small catchment

التفاصيل البيبلوغرافية
العنوان: Phenomenological model of suspended sediment transport in a small catchment
المؤلفون: A. Roque-Bernard, A. Lucas, E. Gayer, P. Allemand, C. Dessert, E. Lajeunesse
المصدر: Earth Surface Dynamics, Vol 11, Pp 363-381 (2023)
بيانات النشر: Copernicus Publications, 2023.
سنة النشر: 2023
المجموعة: LCC:Dynamic and structural geology
مصطلحات موضوعية: Dynamic and structural geology, QE500-639.5
الوصف: We develop a phenomenological model of suspended sediment transport on the basis of data acquired in the Capesterre river, which drains a small tropical catchment in Guadeloupe. The model correctly represents the concentration of suspended sediment during floods, provided that the relation between concentration and water level forms a counterclockwise loop. In the model, the properties of the sediment and of the river are all lumped into four parameters: a settling velocity related to the size of the suspended sediment, a threshold water level which acts as a proxy for the threshold shear stress, a characteristic entrainment rate, and a dimensionless exponent. The value of the parameters changes from one flood to the next, probably reflecting changes in the characteristics of the river and the fine sediment. Finally, a test of the model against data acquired in a small catchment in the French Alps suggests that the model is versatile enough to be used in diverse hydrological settings.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2196-6311
2196-632X
Relation: https://esurf.copernicus.org/articles/11/363/2023/esurf-11-363-2023.pdf; https://doaj.org/toc/2196-6311; https://doaj.org/toc/2196-632X
DOI: 10.5194/esurf-11-363-2023
URL الوصول: https://doaj.org/article/9f9616db30b74dccac6f13edb9793a97
رقم الأكسشن: edsdoj.9f9616db30b74dccac6f13edb9793a97
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:21966311
2196632X
DOI:10.5194/esurf-11-363-2023