Title :
Validation the applicability of satellite based rainfall data for runoff simulation and water balance analysis
Author :
Li, Xianghu ; Zhang, Qi ; Li, Yunliang
Author_Institution :
State Key Lab. of Lake Sci. & Environ., Chinese Acad. of Sci., Nanjing, China
Abstract :
The spatial rainfall is one of the key inputs for the distributed hydrological model, and their precisions heavily affect the accuracy of streamflow predictions from a hydrological model. Satellite-based precipitation products are expected to offer an alternative to ground based rainfall estimates in the present and the foreseeable future. The present study deals with evaluation of using TRMM (Tropical Rainfall Measuring Mission) rainfall for hydrological processes simulation and water balance analysis at the catchment scale. The results show that the WATLAC (Water Flow Model for Lake Catchment) model using conventional rain gauge data produces an overall good fit, but the results for TRMM rainfall data are discontented. The similar water balance analysis results are gained no matter using the rain gauges data or TRMM rainfall data in the WATLAC model, and the different rainfall data have a trivial effect on the components of water budget.
Keywords :
hydrological techniques; hydrology; rain; remote sensing; rivers; TRMM; Tropical Rainfall Measuring Mission; WATLAC model; Water Flow Model for Lake Catchment model; catchment scale water balance analysis; distributed hydrological model; hydrological processes simulation; rain gauge data; rainfall spatial data; runoff simulation; satellite based precipitation products; satellite based rainfall data; streamflow prediction accuracy; water budget; Analytical models; Data models; Lakes; Predictive models; Rain; Satellites; Water resources; TRMM; rainfall; runoff; water balance;
Conference_Titel :
Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-339-1
DOI :
10.1109/ISWREP.2011.5893051
