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NRCS-CN estimation from onsite and remote sensing data for management of a reservoir in the Eastern Pyrenees

Sanz-Ramos, Marcos and Martí-Cardona, Belén and Bladé, Ernest and Seco, Irene and Amengual, Arnau and Roux, Hélène and Romero, Romu NRCS-CN estimation from onsite and remote sensing data for management of a reservoir in the Eastern Pyrenees. (2020) Journal of Hydrologic Engineering, 25 (9). 05020022. ISSN 1084-0699

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Official URL: https://doi.org/10.1061/(asce)he.1943-5584.0001979

Abstract

Onsite and Earth observation (EO) data are used for the calibration of the Natural Resources Conservation Service curve number (NRCS-CN) value in a hydrological simulation model. The model was developed for La Muga catchment (eastern Pyrenees) highly vulnerable to flood and drought episodes. It is an integral part of a regional reservoir management tool, which aims at minimizing the flood risk while maximizing the preservation of water storage. The CN values were optimized for five recorded events for the model to match the observed hydrographs at the reservoir when supported with the measured rainfall intensities. This study also investigates the possibilities of using antecedent moisture conditions (AMC) retrieved from satellite data to inform the selection of the NRCS-CN losses parameter. A good correlation was found between the calibrated CN values and the AMC obtained from satellite data. This correlation highlights the interest in using EO data to update NRCS-CN estimates. This advances in hydrologic-hydraulic coupled modeling combined with new remote sensing datasets present valuable opportunities and potential benefits for flood risk management and water resources preservation.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universitat Politècnica de Catalunya - UPC (SPAIN)
Other partners > Universitat de les Illes Balears (SPAIN)
Other partners > University of Surrey (UNITED KINGDOM)
Laboratory name:
Funders:
Eurorégion Pyrénées Méditerranée - EPM (FRANCE)
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Deposited On:05 Jul 2021 08:50

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