文章摘要
张磊,牟献友,冀鸿兰,张宝森.基于多波段遥感数据的库区水深反演研究[J].水利学报,2018,49(5):639-647
基于多波段遥感数据的库区水深反演研究
Research on water depth inversion in reservoir area based on multi band remote sensing data
投稿时间:2017-11-15  
DOI:10.13243/j.cnki.slxb.20171110
中文关键词: 遥感  多波段反演模型  水深反演
英文关键词: remote sensing  multi-band inversion model  water depth inversion
基金项目:国家重点研发计划项目(2016YFC0402501);国家自然科学基金项目(51569020,51369017);内蒙古自然科学基金资助(2015MS0515)
作者单位E-mail
张磊 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特 010018  
牟献友 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特 010018 mouxianyou@163.com 
冀鸿兰 内蒙古农业大学 水利与土木建筑工程学院, 内蒙古 呼和浩特 010018  
张宝森 黄河水利委员会 黄河水利科学研究院, 河南 郑州 450003  
摘要点击次数: 197
全文下载次数: 124
中文摘要:
      遥感反演是一种水深量测新方法,应用在库区水深量测对水库运行调度、库区淤积研究等均有着积极的作用。针对统计相关分析法中单点量测水深值代表遥感像元对应水深值这一缺陷,本文提出使用同像元多测点数据表征像元对应水深值的方法。以内蒙古海勃湾水库为研究区域,通过表征水深值与各波段组合的相关性选取水深反演因子,建立线性、二次、指数3种形式15组双波段模型与5组不同个数反演因子的多波段模型,从中遴选出较优的5个反演模型,使用未参与建模的检查点样本进行模型精度检验,通过检验结果进行模型比对。结果表明:海勃湾水库水深反演最优反演模型是由12个反演因子建立的多波段反演模型,其平均绝对误差为0.68 m,占平均水深的13.59%。结合遥感周期短、成本低的特点,该方法在一定程度上可以应用于实际,但泥沙含量大与靠近陆地的水域水深反演效果较差。
英文摘要:
      Remote sensing inversion is a new method for measuring water depth, which has a positive ef-fect on dam operation and sedimentation study in the reservoir area. In light of the defect in statistical cor-relation analysis that the water depth of a remote sensing pixel represented by a single bathymetric value, this paper presents a method which takes multi point data in one pixel standing for the depth of the pixel. Taking the Haibowan reservoir in Inner Mongolia as the pilot area,the inversion factor for water depth was selected to represent the correlation between water depth and the combination of each band, and fifteen groups of dual band and five groups of multi-band inversion models were set up with different number of inversion factors in three forms of linear, quadratic and exponential equations. The better five were chosen from them,and their accuracy was tested by the sample of detection points which were not involved in the modeling,and these models were compared by the test. The results show that the optimal water depth inver-sion model of Haibowan reservoir is a multichannel inversion model with 12 inversion factors, and the mean absolute error of which is 0.68 m,taking 13.59% of the average water depth. Combined the charac-teristics of remote sensing in short cycle and lower cost, the model can be used in a certain extent, but the inversion error of water depth might be larger in the water areas with sediment concentration and near the land.
查看全文   查看/发表评论  下载PDF阅读器
关闭