دورية أكاديمية
Phenomenological model of suspended sediment transport in a small catchment
العنوان: | Phenomenological model of suspended sediment transport in a small catchment |
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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 |
تدمد: | 21966311 2196632X |
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DOI: | 10.5194/esurf-11-363-2023 |