Simulation of runoff for the Black Volta Basin using satellite observation data
Autor: | Edward Matthew Osei Jnr, Kwaku Amaning Adjei, F. O. Annor, Samuel Nii Odai, Salamatu Shaibu |
---|---|
Rok vydání: | 2012 |
Předmět: | |
Zdroj: | International Journal of River Basin Management. 10:245-254 |
ISSN: | 1814-2060 1571-5124 |
DOI: | 10.1080/15715124.2012.679735 |
Popis: | 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 somet... |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |