|
|||||
|
|
| 基于Asar与TM图像的洪水淹没范围提取 | |
| 引用本文： | 郑伟,刘闯,曹云刚,黄大鹏.基于Asar与TM图像的洪水淹没范围提取[J].测绘科学,2007,32(5):180-181. |
| 作者姓名： | 郑伟 刘闯 曹云刚 黄大鹏 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,全球变化信息研究中心,北京,100101;中国科学院研究生院,北京,100039 2. 中国科学院地理科学与资源研究所,全球变化信息研究中心,北京,100101 3. 中国科学院地理科学与资源研究所,全球变化信息研究中心,北京,100101;西南交通大学土木工程学院,成都,610031 |
| 摘 要： | 在洪水灾害监测、灾情评估中,洪水淹没范围是最重要的信息之一。洪水灾害中获取的雷达图像能够提取水体的范围,但很难区分出原有水体和洪灾中淹没区范围。基于这个问题,本文提出利用目前功能最为强大的星载雷达系统Asar在灾中得到雷达图像和灾前或者灾后的TM图像复合,得到灾中与非洪灾时期水体的变化范围,即获得洪水淹没范围的方法。试验结果表明,利用这种方法可以快速、准确地提取洪水淹没范围。 |
| 关 键 词： | EnviSatAsar TM 遥感 洪水淹没范围 |
| 文章编号： | 1009-2307（2007）05-0180-02 |
| 修稿时间： | 2006-07-31 |
Extracting the flood inundated area based on Asar and TM image |
|
| ZHENG Wei,LIU Chuang,CAO Yun-gang,HUANG Da-peng.Extracting the flood inundated area based on Asar and TM image[J].Science of Surveying and Mapping,2007,32(5):180-181. | |
| Authors: | ZHENG Wei LIU Chuang CAO Yun-gang HUANG Da-peng |
| Abstract: | Flood inundated area is one of the most important information to real-time monitoring and quick evaluation of flood damage.The radar image can extract flood extend easily,but it is difficult to differentiate between primary water extent and the flood inundated area from radar image.Based on the question,this paper presents a method that can get flood inundated area with Asar image during flood season and TM image during non-flood season.The experimentation result shows that the flood inundated area can be obtained effectively, accurately and rapidly with this method. |
| Keywords: | Asar TM remote sensing flood inundated area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |