Application of the HEC-HMS hydrological model in the Beht watershed (Morocco)

This work focused on the collection and preparation of the data required for the hydrological modelling of the Beht catchment area, which covers an area of 4560 km 2 with a perimeter of 414 km, by combining the various spatial technologies, in particular geographical information systems (GIS), remot...

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Bibliographic Details
Published in:E3S web of conferences 2021, Vol.314, p.5003
Main Authors: Daide, Fatima, Afgane, Rachida, Lahrach, Abderrahim, Chaouni, Abdel-Ali, Msaddek, Mohamed, Elhasnaoui, Ismail
Format: Article
Language:English
Subjects:
Catchment areas
curve number (cn)
digital terrain models (dtm)
Drainage basins
Drainage patterns
Flood forecasting
Geographic information systems
geographic information systems (gis)
hec-geo hms
hec-hms
Hydrologic models
Hydrology
Land cover
Land use
Modelling
Remote sensing
spatial hydrological modelling
Surface runoff
Terrain models
Watersheds
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Summary:This work focused on the collection and preparation of the data required for the hydrological modelling of the Beht catchment area, which covers an area of 4560 km 2 with a perimeter of 414 km, by combining the various spatial technologies, in particular geographical information systems (GIS), remote sensing, and digital terrain models (DTM), with hydrological models in order to prepare for spatial hydrological modelling used for flood forecasting. The methodology consists, at first, in the automatic extraction of the sub-basins and the drainage network. Then, edit these data using the HEC-GEO-HMS extension, and the preparation of the land use and land cover data for the elaboration of a Curve Number (CN) map of Beht watershed, then the import of the basin model into the Hydrologic Modeling System (HEC-HMS) to simulate the surface runoff using six extreme daily time series events.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202131405003