河口Ⅱ类水体富营养化的遥感定量方法研究

Remote sensing quantitative analysis on red tide of Changjiang estuary water

基于对水体叶绿素光谱特征的分析和河口水体富营养化指标的研究,选取适合长江口特点的叶绿素浓度解译方法,利用总磷、总氮与叶绿素的相关特征得出适合河口特征的富营养化评价方法。并且在长江口的遥感影像上选取合适的实验区对这一方法进行试验,取得了较好的结果。

A new evaluation method of estuary eutrophication is established on the basis of analysing the spectral characteristics of ch1- α and the corretalive indexes of red-tide and choosing resolution method of ch1- α concentration fitting the features of Changjiang estuary. An experiment based on selected test area data obtained from remote sensing images of Changjiang estuary shows that this method is feasible and effective.