KMS Institute of Mountain Hazards and Environment,CAS
| 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 Publication | GEOINFORMATICS 2007: GEOSPATIAL INFORMATION TECHNOLOGY AND APPLICATIONS, PTS 1 AND 2 |
| Author of Source | Gong, P ; Liu, YX |
| Volume | 6754 |
| Pages | 67541T |
| meeting | 15th International Conference on Geoinformatics |
| Conference Date | MAY 25-27, 2007 |
| Conference Place | Nanjing |
| Country | PEOPLES R CHINA |
| Publication Place | BELLINGHAM |
| Publisher | SPIE-INT SOC OPTICAL ENGINEERING |
| Contribution Rank | 2 |
| Abstract | Distributed 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. |
| Keyword | model intercomparison SWAT VIC-3L LUCC response |
| DOI | 10.1117/12.764920 |
| ISBN | 978-0-8194-6914-4 |
| ISSN | 0277-786X |
| EISSN | 1996-756X |
| Indexed By | EI ; CPCI |
| Accession number | Accession number:20074810943975 |
| WOS ID | WOS:000251055600064 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/33471 |
| 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 Author | Hongchang Hu |
| Affiliation | 1.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 |
| 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Application of two h（587KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment