基于Sentinel-2卫星数据的城市湖泊湿地叶绿素A及总悬浮物浓度定量监测分析——以长沙市松雅湖为例  

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

作　　者：肖海 陈铸 徐思源 全思湘 张泰 Xiao Hai;Chen Zhu;Xu Siyuan;Quan Sixiang;Zhang Tai(The Second Surveying and Mapping Institute of Hunan Provincial,Changsha Hunan 410119)

机构地区：[1]湖南省第二测绘院,湖南长沙410119

出　　处：《国土资源导刊》2024年第1期129-134,共6页Land & Resources Herald

基　　金：2021年度湖南省卫星监测项目(编号:湘财采计[2021]001563号);湖南省自然资源科技计划项目(编号:20230158CH)。

摘　　要：将湖南省长沙市松雅湖生态湿地湖泊作为研究区,以2016年12月9日和2020年11月8日两期Sentinel-2卫星MSI影像为基础数据源,基于二类水体区域性近岸海域水色算法(C2RCC),对监测区的叶绿素A浓度及总悬浮物浓度进行反演。监测结果表明,秋冬季节,松雅湖水生态修复区的叶绿素A浓度和总悬浮物浓度平均值与非修复区相比,呈现整体偏低的趋势。随着时间推移,松雅湖三个区域的整体叶绿素A浓度和悬浮物浓度均有明显降低。研究结果表明,此方法可为快速高效开展生态湿地湖泊水体的生态状况评价提供基础数据支撑。Taking the Songyahu ecological wetland lake in Changsha prefecture,Hunan Province 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 concentration 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 restoration area.Over time,the overall chlorophyll A concentration and suspended solids concentration 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.

关 键 词：叶绿素A浓度 总悬浮物浓度 遥感反演 C2RCC算法 湖南 

分 类 号：P237[天文地球—摄影测量与遥感]