Runoff Simulation for Aojiang River Basin Using SWAT Model Driven by China Meteorological Assimilation Driving Datasets

TIAN Yang; XIAO Gui-rong

doi:10.11988/ckyyb.20190902

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Journal of Changjiang River Scientific Research Institute ›› 2020, Vol. 37 ›› Issue (11) : 27-32. DOI: 10.11988/ckyyb.20190902

WATER RESOURCES AND ENVIRONMENT

Runoff Simulation for Aojiang River Basin Using SWAT Model Driven by China Meteorological Assimilation Driving Datasets

TIAN Yang, XIAO Gui-rong

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Abstract

At present, studies on runoff simulation in small-scale watersheds with insufficient meteorological and hydrological data are inadequate. The monthly runoff of the Aojiang River basin from 2008 to 2016 is simulated using the SWAT model driven by the China Meterological Assimilation Driving Datasets (CMADS). The model is calibrated and validated with the calculated data by the hydrological analogy method in line with the observation data of two adjacent traditional meteorological stations. The simulation results are in good agreement with the observed values. The values of correlation coefficient and Nash-Suttcliffe efficiency coefficient are 0.84 and 0.76 in calibration period (2010-2013), and 0.85 and 0.74 in validation period (2014-2016), respectively, meeting the evaluation requirements for the model. The SWAT model driven by CMADS is suitable for runoff simulation in Aojiang River basin, and the hydrological analogy method is suitable for runoff calculation in areas with insufficient hydrological data.

Key words

runoff / CMADS / SWAT model / hydrologic analogy method / Aojiang River basin

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TIAN Yang, XIAO Gui-rong. Runoff Simulation for Aojiang River Basin Using SWAT Model Driven by China Meteorological Assimilation Driving Datasets[J]. Journal of Changjiang River Scientific Research Institute. 2020, 37(11): 27-32 https://doi.org/10.11988/ckyyb.20190902

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