A Math-simulation on Accuracy of Gradient Extracted from DEMs

ZHAO Mu dan; CHEN Zheng jiang; JIN Rui

您当前的位置：

首页 >

文章列表页 >

A Math-simulation on Accuracy of Gradient Extracted from DEMs

- A Math-simulation on Accuracy of Gradient Extracted from DEMs
- Bulletin of Soiland Water Conservation Vol. 21, Issue 3, Pages: 55-57(2002)
- 作者机构：
  
  1. 西北大学城市与资源学系,陕西,西安,710069
  2. 中国科学院水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2002
- 稿件说明：
移动端阅览
ZHAO Mu dan, CHEN Zheng jiang, JIN Rui. A Math-simulation on Accuracy of Gradient Extracted from DEMs[J]. Bulletin of Soiland Water Conservation, 2002, 21(3): 55-57.
DOI：

ZHAO Mu dan, CHEN Zheng jiang, JIN Rui. A Math-simulation on Accuracy of Gradient Extracted from DEMs[J]. Bulletin of Soiland Water Conservation, 2002, 21(3): 55-57. DOI：

摘要

研究选取陕北黄土丘陵沟壑区、黄土梁峁丘陵区、黄土低丘区以及黄土破碎塬区 4种地貌地区作为试验样区

采用高精度 1∶ 1万比例尺 5 m分辨率的 DEM为基准数据

应用比较分析、回归分析和相关分析等方法研究黄土高原不同分辨率 DEM提取地面平均坡度精度的量化估算方法

所得到的精度计算数模表达式经验证具有很好的应用前景

也为建立全国范围的通用表达式提供了重要的方法依据。

Abstract

At present

the environment reconst ruction project in the loess plateau area needs the support of the accurate slope gradient. The slope data are mainly detained from the digital elevation model. Four different test areas are chosen to learn the estimation way of the slope gradient from DEM and set up a slope accuracy simulation math-model by assuming 1∶10000 scale

5mreso lution DEM as the basis

and applying relation analysis

regression analysis. This model was testified to be available in application

which also present the important way to set up the general model of the national scale

关键词

Keywords

references

Views

1907

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on Accuracy of Slope Derived From DEMs of Different Map Scales

Slope Classification Systems and Their Slope Spectrum in Hill and Gully Area of the Loess Plateau

Relationship Between Vegetation Spatial Pattern and Terrain Using GIS Techniques--A Case Study in Yaoxian County of Shaanxi Province

Low-water Resource Retrieval in Karst Drainage Area by Remote Sensing

Spatiotemporal changes and driving mechanisms of vegetation cover in Dongting Lake area based on kNDVI and structural equation model

Related Author

TANG Guo an

YANG Qin ke

ZHANG Yong

LIU Yong mei

LIU Xin hua

TANG Guoan

CHEN Zhengjiang

ZHU Hongchun

Related Institution

Institute of Sail and Water Yangling District , Conservation, Chinese Academy of Sciences and Ministry of Water Recources,ShaanxiProvince, PRC

Departmento厂Urban and Resource Saences,Northwest University, Xian 710069,Shaanxi Province, PRC

Department of Urban and Resource Sciences, Northwest University

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Mini

Department of Urban and Resource Science, Northwest University

⁰