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Application of two hydrological models to Weihe River basin: a comparison of VIC - 3L and SWAT
Language英语
Hongchang Hu1; Genxu Wang1,2; Xuemei Bi3; Fengmei Yang1; Chongyi E.1
2007
Source PublicationGEOINFORMATICS 2007: GEOSPATIAL INFORMATION TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2
Author of SourceGong, P ; Liu, YX
Volume6754
Pages67541T
meeting15th International Conference on Geoinformatics
Conference DateMAY 25-27, 2007
Conference PlaceNanjing
CountryPEOPLES R CHINA
Publication PlaceBELLINGHAM
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Contribution Rank2
AbstractDistributed hydrological models are widely used to simulate the runoff process and to evaluate the hydrologic effect of various management scenarios, It is not easy to immediately identify the similarities and differences between the different models, few studies have compared the results of different models when applied to the same catchments. Two hydrological models, Three-layer Variable Infiltration Capacity (VIC-3L) and Soil Water Assessment Tool (SWAT) are compared in their abilities to simulate runoff in Weihe River Basin in China over a six-year validation period.VIC-3L is a macro-scale hydrologic model based on soil-vegetation-atmosphere transfer scheme (SVATS), which is designed to describe the land surface in numerical weather prediction and climate. SWAT model is a complex, conceptual, hydrologic, semi-distributed model with spatially explicit parameterization; it is a continuous time model that operates on a daily time step over long time periods. Two simulated results clear show minimal differences between two models throughout the validation period, although two models have some differences in structure and runoff mechanism. The runoff simulated by two models in spring and winter is underestimated than observed stream flow. The simulated runoff in summer by SWAT is bigger than that by VIC-3L, but is smaller in winter, the simulate runoff by VIC-3L is more flat than that by SWAT. An important difference between model results is the ability to simulate the response of runoff to LUCC, SWAT is a watershed based hydrological model, and it's more evident and accurate to study the response of runoff to LUCC than VIC-1L. The simulated runoff under the land use type in 2000 decreases 6.41% than that in 1986. The runoff has decreased by 15.18% in dry periods and shows an evidently decreasing tendency.
Keywordmodel intercomparison SWAT VIC-3L LUCC response
DOI10.1117/12.764920
ISBN978-0-8194-6914-4
ISSN0277-786X
EISSN1996-756X
Indexed ByEI ; CPCI
Accession numberAccession number:20074810943975
WOS IDWOS:000251055600064
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33505
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Corresponding AuthorHongchang Hu
Affiliation1.College of Resource and Environmental Science, Lanzhou University, Lanzhou Gansu 73000, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu Sichuan 610041, China;
3.International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu210093, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Hongchang Hu,Genxu Wang,Xuemei Bi,et al. Application of two hydrological models to Weihe River basin: a comparison of VIC - 3L and SWAT[C]//Gong, P, Liu, YX. BELLINGHAM:SPIE-INT SOC OPTICAL ENGINEERING,2007:67541T.
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