[1]REN Xi-yan,ZHANG Xue-song,HAO Fang-hua,et al.Effects of DEM Resolutions on Simulated Runoff and Sediment Yields[J].Research of Soil and Water Conservation,2004,11(01):1-4,26.
Copy
Effects of DEM Resolutions on Simulated Runoff and Sediment Yields
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
11
Number of periods:
2004年01期
Page number:
1-4,26
Column:
Public date:
1900-01-01
- Title:
- Effects of DEM Resolutions on Simulated Runoff and Sediment Yields
- Keywords:
- DEM; resolution; SWAT model; slope; soil erosion
- CLC:
- S157.1;TP79
- DOI:
- -
- Abstract:
- Hydrological model simulations are affected by parameters derived from DEMs with different resolutions, which describes the watershed features. The upper range of Luohe River was selected to simulate runoff and sediment yields using the GIS-based SWAT model with four DEM resolutions. The results showed no differences among derived watershed parameters under varying resolutions of DEM, but greater differences for derived slopes. It is important to modify slopes for simulations of runoff and sediment yields. Compared with the lowest resolution of DEM, the changes for the runoff of the highest resolution of DEM was 9.12%～19.52% during 1997～1999, and the changes for the simulated sediment yields of the highest resolution of DEM was 42.25%～49.7% during 1997～1999. In addition, seasonal rainfall distribution and intensity had effects on the simulations.
- References:
-
[1] 李志林, 朱庆.数字高程模型[M].武汉: 武汉测绘大学出版社, 2000.
[2] Jeffrey P Walker, Garry R.Willgoose on the effect of digital elevation model accuracy on hydrology and geomor-phology[J].Water Resources Research, 1999, 35(7):2 259-2 268.
[3] 王中根, 刘昌明, 左其亭, 等.基于DEM的分布式水文模型构建方法[J].地理科学进展, 2002, 21(5): 430-439.
[4] Cho, S M, M W Lee.Sensitivity considerations when modeling hydrologic processes with digital elevation model[J].Journal of American Water Resources Association, 2001, 37(4): 931-934.
[5] 韩琳, 杨勤科."数字黄土高原"到"数字水土保持"[J].水土保持研究, 2002, 9(1):10-13.
[6] 魏文秋, 于建营.地理信息系统在水文学和水资源管理中的应用[J].水科学进展, 1997, (3): 296-300.
[7] 肖培青, 郑粉莉, 史学建.黄土坡面侵蚀垂直分带性及其侵蚀产沙研究进展[J].水土保持研究, 2002, 9(1):47-49.
[8] 唐政洪, 等.黄土丘陵沟壑区小流域侵蚀产沙的地貌分带研究[J].水土保持学报, 2000, 14(4):34-38.
[9] 毕华兴, 中北理.遥感和地理信息系统与水文学整合研究进展[J].水土保持学报, 2002, 16(2):45-49.
[10] Moore, I D, R B Grayson, A R Ladson.digital terrain modeling:a review of hydrological, geomorphological and biological application[J].Int.J.of Hydrological Process, 1991, 5(1):3-30.
[11] Wolock, D M, C V Price.Effects of digital elevation model map scale and data resolution on a topography-based watershed model[J].Water Resources Research, 1994, 30(11):3 041-3 052.
[12] 汤国安, 杨勤科, 张勇.不同比例尺DEM提取地面坡度的精度研究——以在黄土丘陵沟壑区的试验为例[J].水土保持通报, 2001, 21(1):53-56.
[13] 赵牡丹, 陈正江, 晋锐.DEM提取地面平均坡度误差的量化模拟[J].水土保持通报, 2002, 22(3):55-57.
[14] 田磊, 戴静, 祁永刚.流域侵蚀产沙模型述评[J].水土保持研究, 2002, 9(4):77-79.
[15] Arnold J R, S L Neitsch, J G Keniry, et al.Soil and Water Assessment Tool Theoretical Documentation[M].Texas;Grassland Soil Water Research Laboratory, 2002.
[16] M Di Luzio, R Srinivasan, J G Arnold, et al.ArcView Interface For SWAT2000 User’s Guide[M].Texas;Grassland Soil Water Research Laboratory, 2002.
[17] S L Neitsch, J G Arnold, J R Keniry, et al.Soil and Water Assessment Tool User’s Manual[M].Texas;Grassland Soil Water Research Laboratory, 2002.
- Similar References:
Memo
-
Last Update:
1900-01-01