Modeling of Soil Water Distribution in a Small Mid-Latitude Watershed on the British Isle for Short Term Landslide and Flood Risk Assessment

The R-TopModel hydrological model coupled with two landslide and flood probability distribution models was applied to simulate the daily hydrological conditions of a small catchment in the Midlands of the British Isles, throughout 2017. Originally, the methodology was applied to a risk area in the t...

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Bibliographic Details
Published in:	Anuário do Instituto de Geociências Vol. 47
Main Authors:	Karam, Hugo Abi, Blackett, Matthew Alexander, Silva, Raphaella Barros Pereira da, Flores Rojas, Jose Luis, Pereira Filho, Augusto José, Peña, Cesar Arturo Sanchez, Vásquez, Isela Leonor, Siqueira, Brenda Santos, Suazo, Julio Miguel Angeles
Format:	Journal Article
Language:	English
Published:	22-03-2024
Online Access:	Get full text
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Summary:	The R-TopModel hydrological model coupled with two landslide and flood probability distribution models was applied to simulate the daily hydrological conditions of a small catchment in the Midlands of the British Isles, throughout 2017. Originally, the methodology was applied to a risk area in the tropical region. In this work, the application was extended to mid-latitude watersheds. The hydrographic basin around the Carsington Water dam (located in the Midlands of the Great Britain) is chosen because it presents risks. The model Nash-Sutcliffe Efficiency for the upstream discharge from the Carsington Water dam reached 50% with a correlation coefficient of the order of 70%, an acceptable value considering the seasonal effects of the dam on evapotranspiration and higher soil permeability. Modeling the distribution of soil moisture and excess surface water allowed obtaining the spatial distribution of the maximum conditional probability of landslides and floods in the Carsington Water catchment. These probability maps obtained are consistent with long-term susceptibility maps for Great Britain.
ISSN:	0101-9759 1982-3908
DOI:	10.11137/1982-3908_2024_47_57297