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Simulation of runoff for the black volta basin using satellite observation data / Salamatu Shaibu in JRBM : International journal of river basin management, Vol. 10 N° 3 (Juillet 2012) 

Public ISBD [article]  in JRBM : International journal of river basin management > Vol. 10 N° 3 (Juillet 2012) . - pp. 245-254 Titre : Simulation of runoff for the black volta basin using satellite observation data Type de document : texte imprimé Auteurs : Salamatu Shaibu, Auteur ; Nii Odai, Samuel, Auteur ; Kwaku Amaning Adjei, Auteur Année de publication : 2012 Article en page(s) : pp. 245-254 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Black  Volta  Basin  TRMM-based  rainfall  Rainfall-runoff  simulation  Satellite  observation  science Résumé : Daily tropical rainfall measuring mission (TRMM)-based rainfall and Landsat-derived land-cover maps were used to retrospectively simulate runoff for the Black Volta Basin. This was to ascertain the usefulness of the increasingly available satellite observation data to augment ground-measured hydrometeorological data for unguaged basins or basins with inadequate data. Both visual and statistical comparison of TRMM-based rainfall with the gauged rainfall indicates that the monthly rainfall data are statistically comparable. Seasonal upward adjustment of the monthly TRMM-based rainfall improved the rainfall correlation giving a Nash–Sutcliffe model efficiency of the simulated runoff of 89.5%. Thus, monthly TRMM-based rainfall estimate can be used to augment existing ground-measured rainfall data and together with Landsat-derived land-cover maps be used to estimate runoff for unguaged basins in the West African sub-region. The study is useful for Sub-Saharan Africa, where sustainable water management is sometimes hampered due to the absence of reliable and consistent data. ISSN : 1571-5124 En ligne : http://www.tandfonline.com/doi/full/10.1080/15715124.2012.679735 [article] Simulation of runoff for the black volta basin using satellite observation data [texte imprimé] / Salamatu Shaibu, Auteur ; Nii Odai, Samuel, Auteur ; Kwaku Amaning Adjei, Auteur . - 2012 . - pp. 245-254. Hydraulique Langues : Anglais (eng) in JRBM : International journal of river basin management > Vol. 10 N° 3 (Juillet 2012) . - pp. 245-254 Mots-clés : Black  Volta  Basin  TRMM-based  rainfall  Rainfall-runoff  simulation  Satellite  observation  science Résumé : Daily tropical rainfall measuring mission (TRMM)-based rainfall and Landsat-derived land-cover maps were used to retrospectively simulate runoff for the Black Volta Basin. This was to ascertain the usefulness of the increasingly available satellite observation data to augment ground-measured hydrometeorological data for unguaged basins or basins with inadequate data. Both visual and statistical comparison of TRMM-based rainfall with the gauged rainfall indicates that the monthly rainfall data are statistically comparable. Seasonal upward adjustment of the monthly TRMM-based rainfall improved the rainfall correlation giving a Nash–Sutcliffe model efficiency of the simulated runoff of 89.5%. Thus, monthly TRMM-based rainfall estimate can be used to augment existing ground-measured rainfall data and together with Landsat-derived land-cover maps be used to estimate runoff for unguaged basins in the West African sub-region. The study is useful for Sub-Saharan Africa, where sustainable water management is sometimes hampered due to the absence of reliable and consistent data. ISSN : 1571-5124 En ligne : http://www.tandfonline.com/doi/full/10.1080/15715124.2012.679735