基于多光谱遥感技术的白洋淀水质演变监测方法研究

Study on Monitoring Method for Water Quality Evolution in Baiyang Lake Based on Multispectral Remote Sensing Technology

基于哨兵2号多光谱卫星遥感数据,结合白洋淀区实地采样数据,对白洋淀淀区的水质参数进行定量反演,获取淀区溶解氧、氨氮、总磷、总氮和化学需氧量五种参数的空间分布图,掌握白洋淀水质整体情况。实验结果表明,利用少量的水质实测数据,建立遥感水质参数反演模型,可以快速获取淀区水质连续空间分布图,通过模型精度验证可知,该方法可以取得较高的反演精度。

Based on the remote sensing data of Sentinel 2 multispectral satellite,combined with the field sampling data of Baiyang Lake area,the water quality parameters of Baiyang Lake area are quantitatively retrieved,and the spatial distribution map of the five parameters of dissolved oxygen,ammonia nitrogen,total phosphorus,total nitrogen and chemical oxygen demand in Baiyang Lake area are obtained,so as to master the overall situation of the water quality of Baiyang Lake.The experimental results show that the continuous spatial distribution map of water quality in the lake area can be quickly obtained by establishing a remote sensing water quality parameter inversion model using a small amount of measured water quality data.The model accuracy verification shows that this method can achieve high inversion accuracy.