基于遥感技术的分散式水源水质监测初探——以重庆市永川区为例

在基于统计学理论的水质遥感反演研究基础上,利用Landsat-TM遥感影像数据,结合水质反演的原理,选取典型丘陵区———永川区主要水库水体水质参数(叶绿素a、悬浮物、透明度、水温和氨氮)为研究对象,建立遥感信息同实测数据间的响应关系,得出具有区域代表性的反演模型,初步形成了一套基于遥感的分布式水质定量测算研究方法,分析结果得出水体中叶绿素a、水温和氨氮精度较高,悬浮物、透明度精度较低。

Preliminary Study on Water Quality Monitoring of the Dispersed Water Source Based on Remote Sensing Technology

Based on the statistics theory and the principle of remote sensing retrieval technology in water quality,using Landsat-TM remote sensing image data,the water quality parameters(chlorophyll a,suspended substance,transparency,water temperature and ammonia nitrogen)in Yongchuan District which is a typical hills region were selected as study object,the corresponding relationship between remote sensing and measured data was established,the regional representative model was obtained,a set of distributed water quality approach based on remote sensing retrieval technology was formed.The results showed that the precision of chlorophyll a,water temperature and ammonia nitrogen are relatively higher than suspended substance and transparency.