|
|
|
| Runoff simulation with calibration and validation of three stations in Jinjiang River basin |
| Wang Lin,Chen Xingwei |
| School of Geographical Science,Fujian Normal University,350007,Fuzhou,China |
|
|
|
|
Abstract Simulated with the distributed SWAT(soil and water assessment tool) model,annual water yield,monthly streamflow and baseflow of three gauging stations in Jinjiang River basin,which is located in the southeast coastal of China,were evaluated.The model was calibrated with the measured runoff data of 1972—1975,and six sensitive parameters were determined.The simulation results were evaluated by Ens,Mm,Er and R2.The model was further validated with the runoff of 1976—1979,which provided excellent results.It showed that the calibration and validation with three stations results in more realistic parameter values across both the hydrological processes and the geographic areas,and improved the simulation efficiency.SWAT model could be successfully used to simulate the runoff in the southeast coastal watershed.Better results can be obtained if the simulation with wet condition data(above average rainfall for the river basin) than with dry condition data(below average rainfall). In addition,during the low-flow period,the reservoir operation has a great affect to the simulation results.
|
|
Received: 05 April 2007
|
|
|
|
|
|
|
