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5 October 2020 Distributed Watershed Hydrological Simulation Method Based on SWAT Model
Dong Liu, Jianen Gao
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Liu, D. and Gao, J.N., 2020. Distributed watershed hydrological simulation method based on SWAT model. In: Guido Aldana, P.A. and Kantamaneni, K. (eds.), Advances in Water Resources, Coastal Management, and Marine Science Technology. Journal of Coastal Research, Special Issue No. 104, pp. 738–741. Coconut Creek (Florida), ISSN 0749-0208.

Aiming at the problems of large simulation error and long time consumption in traditional distributed hydrological simulation methods, a distributed hydrological simulation method based on SWAT model is proposed in this paper. This paper analyzes the working principle of SWAT model and constructs SWAT model; uses baseline drift method and variable storage coefficient model to extract typical characteristics of groundwater runoff, soil moisture evaporation and water surface concentration of distributed watershed hydrological characteristic data; on this basis, analyzes the spatial distribution characteristics of precipitation, modifies the precipitation coefficient, and through the coefficient of linear regression equation and efficiency coefficient and adjust the root mean square error to realize the distributed hydrological simulation. The experimental results show that the minimum error of the proposed method is about 0.01%, and the maximum simulation time is about 5.8 s.

©Coastal Education and Research Foundation, Inc. 2020
Dong Liu and Jianen Gao "Distributed Watershed Hydrological Simulation Method Based on SWAT Model," Journal of Coastal Research 104(sp1), 738-741, (5 October 2020).
Received: 30 December 2019; Accepted: 15 June 2020; Published: 5 October 2020
baseline drift
distributed watershed hydrology
efficiency coefficient
precipitation coefficient
SWAT model
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