Interpretation and Identification of Rural Black and Odorous Water Bodies in a Region Based on Remote Sensing Data
At present,it is difficult for traditional manual mapping and ground monitoring methods to quickly ob-tain the status quo of large-scale black and odorous water bodies with the characteristics of dispersion,seasonality,and recurrence,while the rural black and odorous water identification method based on remote sensing technology has the advantages of wide range,fast speed,and convenient for long-term dynamic monitoring.On the basis of fully grasping the relevant background of the black and odorous water bodies in the survey area,this study took the image data of Hefei Gaofen Center and the purchased Jilin No.1 as the main data sources,and used the meth-ods of computer interpretation and artificial interaction to obtain the water data of Feixi County.Inversion work is carried out according to the spectral characteristics of the black and odorous water bodies.Field verification is carried out and a working ledger of black and odorous water bodies is formed.The results show that the width of high-resolution satellites is generally small,which is affected by the return visit cycle of Yunyuhe orbit.The short-term coverage capability of a single satellite is preferred;Remote sensing interpretation has the characteristics of fast recognition speed and high accuracy.Manual on-site review is a beneficial supplementary means for remote sensing image interpretation.On-site verification and monitoring need to consider weather reasons.At the same time,the identification characteristics of black and odorous water bodies should be further excavated and enriched.
satellite remote sensingblack and odorous water bodieswater pollution
NETL
NSTL
万方数据
