Sensitivity analysis of the hydrological response of the Gaping River basin to radar-raingauge quantitative precipitation estimates [Analyse de sensibilit? de la r?ponse hydrologique du bassin de la rivi?re Gaping aux estimations quantitatives de pr?cipitations par radar et pluviom?tres]
Journal
Hydrological Sciences Journal
Journal Volume
59
Journal Issue
7
Pages
1335-1352
Date Issued
2014
Author(s)
Abstract
The generation of reliable quantitative precipitation estimations (QPEs) through use of raingauge and radar data is an important issue. This study investigates the impacts of radar QPEs with different densities of raingauge networks on rainfall–runoff processes through a semi-distributed parallel-type linear reservoir rainfall–runoff model. The spatial variation structures of the radar QPE, raingauge QPE and radar-gauge residuals are examined to review the current raingauge network, and a compact raingauge network is identified via the kriging method. An analysis of the large-scale spatial characteristics for use with a hydrological model is applied to investigate the impacts of a raingauge network coupled with radar QPEs on the modelled rainfall–runoff processes. Since the precision in locating the storm centre generally represents how well the large-scale variability is reproduced; the results show not only the contribution of kriging to identify a compact network coupled with radar QPE, but also that spatial characteristics of rainfalls do affect the hydrographs. Editor Z.W. Kundzewicz; Guest editor R.J. MooreCitation Pan, T.-Y., Li, M.-Y., Lin, Y.-J., Chang, T.-J., Lai, J.-S., and Tan, Y.-C., 2014. Sensitivity analysis of the hydrological response of the Gaping River basin to radar-raingauge quantitative precipitation estimates. Hydrological Sciences Journal, 59 (7), 1335–1352. http://dx.doi.org/10.1080/02626667.2014.923969
Type
journal article