Quantitative Monitoring and Analysis of Chlorophyll A and Total Suspended Solids Concentration in Urban Lakes and Wetlands Based on Sentinel-2 Satellite Data——A Case Study of Songyahu in Changsha Prefecture
Taking the Songyahu ecological wetland lake in Changsha prefecture,Hunan Prov-ince as the research area,using Sentinel-2 satellite MSI images from December 9,2016 and November 8,2020 as the basic data sources,and based on the Class Ⅱ Regional Near shore Water Color Algorithm(C2RCC),the chlorophyll A concentration and total suspended solids concentra-tion in the monitoring area were inverted.The monitoring results indicate that in the autumn and winter seasons,the average concentrations of chlorophyll A and total suspended solids in the ecological restoration area of Songya Lake show an overall lower trend compared to the non res-toration area.Over time,the overall chlorophyll A concentration and suspended solids concen-tration in the three areas of Songya Lake have significantly decreased.The research results indicate that this method can provide basic data support for the rapid and efficient evaluation of the ecological status of ecological wetland lake water bodies.
chlorophyll A concentrationtotal suspended solids concentrationremote sensing inversionC2RCC algorithmHunan
NETL
NSTL
万方数据
