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Role of spatial aggregation over runoff calculations on southeast France catchments

Authors :
Eid, N. J.
Flavie Cernesson
Nathalie Folton
Pascal Kosuth
Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS)
Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Ouvrages hydrauliques et équipements pour l'irrigation (UR OIAX)
Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)
Irstea Publications, Migration
Source :
IAHS Publications, Predictions in Ungauged Basins : promise and progress. Symposium S7 held during the Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005, Predictions in Ungauged Basins : promise and progress. Symposium S7 held during the Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005, 2006, pp.187-194, Publons, HAL
Publication Year :
2006
Publisher :
HAL CCSD, 2006.

Abstract

The paper investigates the catchment area extension calculations as a function of the adopted spatial resolution and the effect of these spatial resolutions on the runoff calculations, for a number of catchments. Calculations were done with hypothetical and constant amounts of precipitation over space. Adopted grid size varied from 3000 to 2 m. Area estimate errors were computed in respect to 2 m grid resolution and the SCS method used for excess precipitation calculations. Results have shown that 75% of the catchments have errors of

Details

Language :
English
Database :
OpenAIRE
Journal :
IAHS Publications, Predictions in Ungauged Basins : promise and progress. Symposium S7 held during the Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005, Predictions in Ungauged Basins : promise and progress. Symposium S7 held during the Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005, 2006, pp.187-194, Publons, HAL
Accession number :
edsair.dedup.wf.001..45e48fdc50c16ee5a006d5d7be604353