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| 面向分布式水文模型的SRTM无效高程数据处理方法 | |
| 引用本文： | 邓丽,范荣双,梁勇,张承明.面向分布式水文模型的SRTM无效高程数据处理方法[J].测绘科学,2012,37(2):129-132. |
| 作者姓名： | 邓丽 范荣双 梁勇 张承明 |
| 作者单位： | 1. 山东农业大学信息学院,山东泰安271018;中国测绘科学研究院9202工程中心,北京100830 2. 中国测绘科学研究院9202工程中心,北京,100830 3. 山东农业大学信息学院,山东泰安,271018 |
| 基金项目： | 国家质量监督检验检疫总局科技公益专项:数字电视国家标准推广实施关键技术及优化标准研制(200910245) |
| 摘 要： | 获取高精度DEM是分布式水文模型开发和应用的基础,而最新发布的全球高分辨率SRTM数据在很大程度上解决了高分辨率DEM数据获取相对困难的问题,对于水文学研究具有重要意义。由于利用雷达技术获取地面高程数据技术本身的限制,SRTM原始DEM数据中存在着很多问题。本文以雪野水库区域为例,利用ASTER数据通过分析两种数据高程差异的分布特点对SRTM高程数据无效区域进行了填充,计算结果表明该方法可以提高无效数据处理结果的精度,是一种有效的获取相对完整地形数据的方法。 |
| 关 键 词： | 分布式水文模型 DEM SRTM ASTER 无效高程 |
Disposition methods of SRTM invalid terrain data for distributed hydrological model |
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| DENG Li , FAN Rong-shuang , LIANG Yong , ZHANG Cheng-ming.Disposition methods of SRTM invalid terrain data for distributed hydrological model[J].Science of Surveying and Mapping,2012,37(2):129-132. | |
| Authors: | DENG Li FAN Rong-shuang LIANG Yong ZHANG Cheng-ming |
| Institution: | ①(①School of Information Science and Engineering,Shandong Agricultural University,Shandong Taian 271018,China;②Research Center of Governmental Geographic Information System,Chinese Academy of Surveying & Mapping,Beijing 100830,China) |
| Abstract: | Acquiring high-precision DEM is the development and applicaiton basis for distributed hydrological model,and the free high-resolution SRTM data of the world published lately have settled the problem of being relatively difficult to obtain DEM data to a large extent,which is so important for the hydrological study.Because of the limitations on using Radar technology to obtain surface elevation data,there are many problems in the original SRTM DEM data.This article,which took Xueye Reservoir area as an example,filled the invalid parts of SRTM elevation data via analyzing the distributing characteristics of difference in height between the two kinds of data using ASTER data.The calculating result indicated that the method could improve the precision for dealing with exceptional data,which would be an effective method for obtaining relatively integrate terrain data. |
| Keywords: | distributed hydrological model DEM SRTM ASTER invalid terrain data |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |