SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Parametric assessment of water use vulnerability variations using SWAT and fuzzy TOPSIS coupled with entropy 
Authors:Won, K., E.-S. Chung and S.-U. Choi 
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Broad Application Category:hydrologic only 
Primary Application Category:hydrologic and/or pollutant indices 
Secondary Application Category:calibration, sensitivity, and/or uncertainty analysis 
Watershed Description:12 major systems covering from 505.52 km^2 to 34,428.10 km^2 that compromise 88% of the land area in South Korea (see Figure 2 and Table 1; the Han River drains a portion of southern North Korea). 
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Abstract:This study assessed the water use vulnerability to include the uncertainty of the weighting values of evaluation criteria and the annual variations of performance values using fuzzy TOPSIS coupled with the Shannon entropy method. This procedure was applied to 12 major basins covering about 88% territory of South Korea. Hydrological components were simulated using Soil and Water Assessment Tool (SWAT) of which parameters were optimally calibrated using SWAT-CUP model. The 15 indicators including hydrological and anthropogenic factors were selected, based on three aspects of climate exposure, sensitivity and adaptive capacity. Their weighting values were objectively quantified using the Entropy method. All performance values of 12 basins obtained from statistic Korea and SWAT simulation were normalized with the consideration of the annual variations from 1991 to 2014 using triangular fuzzy numbers (TFNs). Then, Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) technique was used to quantify the water use vulnerability and rank 12 basins as follows: A12 (Hyeongsan River) > A6 (Seomjin River) > A5 (Youngsan River) > A8 (Mangyung River) > A2 (Ansung River) > A9 (Dongjin River) > A10 (Nakdong River) > A3 (Geum River) > A4 (Sapgyo River) > A11 (Taehwa River) > A7 (Tamjin River) > A1 (Han River). This framework can be used to determine the spatial priority for sustainable water resources plan and applied to derive the climate change vulnerability on sustainable water resources. 
Keywords:fuzzy TOPSIS coupled with entropy; SWAT; water use vulnerability