遥感测绘技术在区域生态环境水污染监测中的应用研究

Application of Remote Sensing Surveying and Mapping Technology in Monitoring Water Pollution in Regional Ecological Environment

探究遥感测绘技术在区域生态环境水污染监测中的应用效果。选择某大型水库作为研究区,选用八旋翼无人机、野外便携式光谱仪等作为试验仪器,采集遥感数据。对采集数据实施传感器辐射定标、影像去噪、场地辐射校正、几何校正、水陆分界等预处理,获取多个波段的对应光谱反射率数据。基于LSTM构建含2个隐含层的水质参数遥感反演模型,反演水质参数,实现区域生态环境水污染监测。反演结果表明:该水库的pH、MnO_(4)^(-)、NH_(3)-H等含量均存在超标问题,并且反演结果比较准确。该方法可以有效检测生态环境水污染。

To explore the application effect of remote sensing surveying and mapping technology in regional ecological environment water pollution monitoring,a large reservoir was selected as the research area,eight-rotor UAV and field portable spectrometer were selected as test instruments to collect remote sensing data.Sensor radiometric calibration,image denoising,site radiometric correction,geometric correction and water and land boundary were used to obtain the corresponding spectral reflectance data of multiple bands.Based on LSTM,a remote sensing inversion model of water quality parameters with two hidden layers was constructed to invert water quality parameters and realize regional ecological environmental water pollution monitoring.The inversion results showed that the contents of pH,MnO_(4)^(-) and NH_(3)^(-)H in the reservoir exceeded the standard,and the inversion results were accurate.This method can effectively detect the ecological environment water pollution.