Abstract
Hydrologic infornjation is required for the planning and design Ofwater resource projects. However, Hydrologic infonnation is always lacking at points of interest. Regionalization is ained at estimating hydrologic infor- mation such as low flow statistics at ungauged sites. Hydrologic informa- tion from 63 catchments in Tanzania has been analysed. In this paper, pooled flow duration curves for 1, IO, 30, 60, and 90 days duration have been established. Regression equations between the low flow indices (i.e. 95 percentile and for a IO day duration, average annual yield (AAY), av- erage daily flow (ADE)) and catchment characteristics were developed. The pooled flow duration curves and the regression equations could be used to estimate the lowßow statistics at ungauged catchments. However, it is recommended that data from all gauged catchments in the Country should be used to in order to obtaion more reliable regresion equations. a more rigo rous approach should be used in grouping theflow duration curves into groups of homogeneous catchments.
Recommended Citation
C, O. (1994). REGIONALIZATION OF HYDROLOGIC INFORMATION IN TANZANIA (LOW FLOWS). Tanzania Journal of Engineering and Technology (TJET), 18(1), 39-51. https://doi.org/https://doi.org/10.52339/tjet.v18i1.161
Publisher Name
University of Dar es Salaam