TY - JOUR
T1 - Rainfall-Driven Spring Hydrograph Modeling in a Karstic Water System, Southwestern China
AU - Liu, Lihong
AU - Shu, Longcang
AU - Chen, Xunhong
AU - Wang, En
AU - Oromo, Thomas
N1 - Funding Information:
Acknowledgements The research work was funded by National Development Program for Basic Key Science Research entitled “The fundamental theoretical problems concerning the processes of rocky desertification in the mountainous areas of Southwest China and adaptively ecological rehabilitation (2006CB403200)”, the “111” Project under Grant B08048 supported by Ministry of Education and State Administration of Foreign Experts Affairs, P. R. China and the project “Study on Coupled Processes of Atmosphere–Land–Hydrology (IRT0717)” supported by program for Changjiang Scholars and Innovative Research Team in University (PCSIRT).
PY - 2010
Y1 - 2010
N2 - Karstic water systems are usually characterized by high heterogeneity and lack boreholes and points of observation. Thus, a study of the karstic water system using lumped parameters may help distinguish the degree of the flow structure, the influence of any wide conduits, the controlling effect of stored reserves, and other hydrologic factors. A modified Darcian model derived from Criss and Winston (Geophys Res Lett 30(6):1314-1317, 2003) was developed in this study and used to model spring discharges in a highly karstified water system in Houzhai, Guizhou Province, China. The modified model successfully reproduced the discharge responses of the Houzhai karstic water system by using two lumped parameters. After analyzing 28 storm events, the authors obtained the parameter values which reflect the lag time to the rainfall input signal and verified the parameter values by spectral analysis results. The sensitivity analysis of the two lumped parameters indicated that the immediate rainfall event is the dominating factor influencing the discharge response.
AB - Karstic water systems are usually characterized by high heterogeneity and lack boreholes and points of observation. Thus, a study of the karstic water system using lumped parameters may help distinguish the degree of the flow structure, the influence of any wide conduits, the controlling effect of stored reserves, and other hydrologic factors. A modified Darcian model derived from Criss and Winston (Geophys Res Lett 30(6):1314-1317, 2003) was developed in this study and used to model spring discharges in a highly karstified water system in Houzhai, Guizhou Province, China. The modified model successfully reproduced the discharge responses of the Houzhai karstic water system by using two lumped parameters. After analyzing 28 storm events, the authors obtained the parameter values which reflect the lag time to the rainfall input signal and verified the parameter values by spectral analysis results. The sensitivity analysis of the two lumped parameters indicated that the immediate rainfall event is the dominating factor influencing the discharge response.
KW - Karstic water system
KW - Modified Darcian model
KW - Southwestern China
KW - Spring hydrograph
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U2 - 10.1007/s11269-009-9574-3
DO - 10.1007/s11269-009-9574-3
M3 - Article
AN - SCOPUS:77955768743
VL - 24
SP - 2689
EP - 2701
JO - Water Resources Management
JF - Water Resources Management
SN - 0920-4741
IS - 11
ER -