[1]陈燕,汤国安,齐清文.不同空间尺度DEM坡度转换图谱分析[J].华侨大学学报(自然科学版),2004,25(1):79-82.[doi:10.3969/j.issn.1000-5013.2004.01.020]
　Chen Yan,Tang Duoan,Qi Qingwen.Analysis of Slope Change Atlas Drawing from Digital Elevation Models of Different Spatial Scales[J].Journal of Huaqiao University(Natural Science),2004,25(1):79-82.[doi:10.3969/j.issn.1000-5013.2004.01.020]
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不同空间尺度DEM坡度转换图谱分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第25卷
期数:
2004年第1期
页码:
79-82
栏目:
出版日期:
2004-01-20

文章信息/Info

Title:
Analysis of Slope Change Atlas Drawing from Digital Elevation Models of Different Spatial Scales
文章编号:
1000-5013(2004)01-0079-04
作者:
陈燕; 汤国安; 齐清文
中国科学院地理科学与资源研究所; 西北大学城市资源学系; 中国科学院地理科学与资源研究所 北京100101; 陕西西安710069; 北京100101
Author(s):
Chen Yan1;  Tang Duo’an2;  Qi Qingwen1
1.Inst. of Geograph. Sci. & Natural Resource Res., CAS, 100101, Beijing, China; 2.Dept. of Urban & Resources, Northwest Univ., 710069, Xi’an, China
关键词:
DEM;  地面坡度;  信息图谱;  地理学
Keywords:
digital elevation model (DEM);  slope;  information TUPU;  geography
分类号:
P224
DOI:
10.3969/j.issn.1000-5013.2004.01.020
文献标志码:
A
摘要:
从地理学的宏观与实际需求的角度出发,选择代表黄土高原典型地貌类型 (黄土丘陵沟壑区、破碎塬区、梁峁区 )的 3个样区作为试验区 .试验以 1∶1 0 0 0 0高精度地形图的 5m空间分辨率DEM(数字高程模型 )所提取的地面坡度为准值,运用GIS、数理统计和比较分析等方法,研究基于 1∶5 0 0 0 0地形图的 2 5m空间分辨率DEM所提取地面坡度的误差特征与纠正方法 .文中应用地学信息图谱的理论和方法,经过反复实验、分析,找到一个精度较理想的,可适用于黄土高原不同地貌类型的坡度转换图谱 .同时,利用它实现对基于 1∶5 0 0 0 0地形图的 2 5m空间分辨率DEM提取地面坡度统计值的误差纠正,为其应用精度提供参考标准和依据 .此外,它也可以为各类DEM的适用性、应用精度的科学估算,以及有关标准的制定,提供科学依据
Abstract:
From the viewpoint of geography and the demand of practical application, area of ravine and area of kalaclastic plateau and area of rigid of loess hills are chosen to represent typical land forms of loess plateau. By adopting the ground slope drawing from high accuracy digital elevation model (DEM) based on 1∶10 000 relief map with 5 m spatial resolution as criterion, and by using ground instrumentation and mathematical statistics and comparative analysis as methods, a study is made on the error character and correction method of the ground slope drawing from DEM based on 1∶50 000 relief map with 25 m spatial resolution. By applying theory and method of Geu info TUPU, the authors have found a slope change atlas with fairly ideal accuracy for the use of different landforms of loess plateau after repeated experiment and analysis and verification. This slope change TUPU realizes error correction of statistical values of ground slope drawing from DEM based on 1∶50 000 relief map with 25 m soatial resolution. It provides its application accuracy with reference standard and basis. It also provides the rough calculation of serviceability and application accuracy of all kinds of DEMS as well as the formulation of relevent standards with scientific basis.

参考文献/References:

[1] Bolstad P V, Stowe T. An evaluation of DEM accuracy: Elevation [J]. slope and Aspect Photogrammetric Engineering and Remote Sensing, 1994, (11):1327-1332.
[2] CARTER J. The effect of data precision on the calculation of slope and aspect using gridded DEMs [J]. Cartographic Journal, 1992(1):22-34.
[3] Gao J. Resolution and accuracy of terrain representation by grid DEMs at a micro-scale [J]. International Journal of Geographical Information Science, 1997(2):199-212.doi:10.1080/136588197242464.
[4] Tang G. A research on the accuracy of digital elevation models [M]. 北京:科学出版社, 2000.1-221.
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[7] 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(1):53-56.doi:10.3969/j.issn.1000-288X.2001.01.014.
[8] 陈述彭, 岳天祥, 励惠国. 地学信息图谱研究及其应用 [J]. 地理研究, 2000(4):337-343.doi:10.3321/j.issn:1000-0585.2000.04.001.
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备注/Memo

备注/Memo:
国家自然科学基金资助项目(49971065); 中国科学院知识创新工程领域前沿基金资助项目(CXIOGD00101)
更新日期/Last Update: 2014-03-23