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
肖海 1陈铸 1徐思源 1全思湘 1张泰1
作者信息
- 1. 湖南省第二测绘院,湖南长沙 410119
- 折叠
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.
Abstract
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.
关键词
叶绿素A浓度/总悬浮物浓度/遥感反演/C2RCC算法/湖南Key words
chlorophyll A concentration/total suspended solids concentration/remote sensing inversion/C2RCC algorithm/Hunan引用本文复制引用
基金项目
湖南省卫星监测项目(2021)(湘财采计[2021]001563号)
湖南省自然资源科技计划(20230158CH)
出版年
2024
NETL
NSTL
万方数据