长江科学院院报Issue(3)：117-120,4.DOI:10.3969/j.issn.1001-5485.2015.03.023
人工调查崩岗数据精度分析
Accuracy of Slope Collapse Data Collected by Artificial Survey
摘要
Abstract
Slope collapse distributes widely in south China with huge damages.The distribution and dynamic chan-ges of slope collapse is very helpful to controlling the slope collapse development and formulating the policy for slope collapse prevention,however at present few study on the accuracy of slope collapse investigation has been conduc-ted.By comparing the characteristic data such as the spatial distribution,perimeter,and area collected from artifi-cial survey and extracted from remote sensing images,we found that the data collected from artificial survey could generally reflect the actual location of slope collapse.But the shape and boundary differ greatly,with the average perimeter and area reduce 11.70%,and 9.07% respectively than the actual situation.If the number of incorrect slope collapse is considered,the total perimeter and area reduce less.In short,the slope collapse data from artifi-cial survey reflects the actual value very correctly,and could support the database for scientific research and deci-sion-making.However,more financial,human resource,and time are required in artificial survey,and long-term dynamic monitoring could not be carried out.In addition,its accuracy is affected by different investigators.关键词
崩岗/人工调查/遥感影像/相对误差/空间分布/决策/地形图Key words
slope collapse/artificial survey/remote sensing image/relative error/spatial distribution/policy/top-ographic map分类
农业科技引用本文复制引用
刘洪鹄,秦飞,陈锦,刘政辉,丁文峰..人工调查崩岗数据精度分析[J].长江科学院院报,2015,(3):117-120,4.基金项目
国家自然科学基金项目（41301297，41271303）；水利部科技推广计划项目（TG1310）；北京师范大学地表过程与资源生态国家重点实验室开放课题 （）
