Assessing the Hydrology of a Data-Scarce Tropical Watershed Using the Soil and Water Assessment Tool

cg.contributor.crpWater, Land and Ecosystems
cg.identifier.doihttps://doi.org/10.4236/ojmh.2017.72004en
cg.issn2163-0461en
cg.issn2163-0496en
cg.issue2en
cg.journalOpen Journal of Modern Hydrologyen
cg.subject.wleHYDROLOGYen
cg.subject.wleSOILen
cg.subject.wleWATER ANALYSISen
cg.subject.wleWATERSHEDSen
cg.volume7en
dc.contributor.authorWinfred, B. M.en
dc.contributor.authorJaphet, J. K.en
dc.date.accessioned2018-01-26T13:13:43Zen
dc.date.available2018-01-26T13:13:43Zen
dc.identifier.urihttps://hdl.handle.net/10568/90594
dc.titleAssessing the Hydrology of a Data-Scarce Tropical Watershed Using the Soil and Water Assessment Toolen
dcterms.abstractThe hydrology of the Little Ruaha River which is a major catchment of the Ihemi Cluster in the Southern Agricultural Growth Corridor of Tanzania (SA-GCOT) has been studied. The study focused on the hydrological assessment through analysis of the available data and developing a model that could be used for assessing impacts of environmental change. Pressures on land and water resources in the watershed are increasing mainly as a result of human activities, and understanding the hydrological regime is deemed necessary. In this study, modeling was conducted using the Soil and Water Assessment Tool (SWAT) in which meteorological and streamflow data were used in the simulation, calibration and evaluation. Calibration and evaluation was done at three gauging stations and the results were deemed plausible with NSE ranging between 0.64 and 0.80 for the two stages. The simulated flows were used for gap filling the missing data and generation of complete daily time series of streamflow at three gauging stations of Makalala, Ihimbu and Mawande. Results of statistical trends and flow duration curves, revealed decline in magnitudes of seasonal and annual flows indicating that streamflows are changing with time and may have implications on envisioned development and the water dependent ecosystems.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationWinfred, B. M.; Japhet, J. K. 2017. Assessing the Hydrology of a Data-Scarce Tropical Watershed Using the Soil and Water Assessment Tool: Case of the Little Ruaha River Watershed in Iringa, Tanzania. 7(2):65-89p. doi: 10.4236/ojmh.2017.72004en
dcterms.extentp. 65-89en
dcterms.issued2017en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherScientific Research Publishing, Inc.en
dcterms.typeJournal Article

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