基于Landsat-8影像的最佳波段组合研究——白云鄂博矿区土壤重金属专题调查  

The analysis of the optimum band combination based on the image of Landsat- 8——A case study of thematic survey of heavy metals in soils in the mining area of Bayan Obo

作　　者：金剑[1] 周显平[1] 马凯[1] 

机构地区：[1]内蒙古科技大学矿业与煤炭学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2016年第1期37-41,共5页Journal of Inner Mongolia University of Science and Technology

基　　金：内蒙古科技大学创新基金资助项目(2015QDL05)

摘　　要：本文以内蒙古自治区白云鄂博矿区的土壤重金属专题信息调查为例,选用Landsat-8遥感影像数据进行适合该专题的最佳波段组合研究.首先在深刻分析研究区内重金属污染土壤的实测光谱曲线特征的基础上,确定重金属污染土壤相对于正常土壤的特征谱带,然后对相对应的特征波段进行分组筛选,最后综合考虑Landsat-8遥感数据波谱特点和数据统计特征,利用最佳指数法确定显示土壤重金属专题信息效果最好的最佳波段组合.经过实地勘测,利用土壤重金属专题特征波段选择出的最佳波段组合突出的专题信息与野外调查的结果一致,能够为环境监测等工作提供可靠依据.Based on the case of thematic survey of heavy metals in soil in the mining area of Bayan Obo in Inner Mongolia Autonomous Region,the optimum band combination was studied by analyzing the Landsat- 8 remote sensing image data. Firstly,the distinct bands of heavy metal contaminated soil with respect to normal soil were determined according to the analysis of the measured spectral curves of heavy metal contaminated soil in the study area. Then,the corresponding diagnostic bands were grouped and filtered. Finally,considering the spectral characteristics and statistics feature of Landsat- 8 remote sensing image data,the best optimum band combination was determined which displays the information of heavy metals in soil with OIF. After the investigation of the site,the thematic information highlighted by the optimum band combination is consistent with the results of the field survey,providing a reliable basis for environmental monitoring and other work.

关 键 词：Landsat-8影像 重金属污染土壤 光谱曲线 特征波段 最佳波段组合 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]