基于长时序Landsat影像的东湖水体悬浮物浓度分析  

Analysis of total suspended solids concentration in water bodies of East Lake based on long time series Landsat imagery

作　　者：卢东烁 李建[2] A Filippi LU Dongshuo;LI Jian(Department of Geography, T exas A&M University, Texas 77843, USA;School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China)

机构地区：[1]德克萨斯州农工大学地理系,美国德克萨斯州77843 [2]武汉大学遥感信息工程学院,湖北武汉430079

出　　处：《武汉大学学报（工学版）》2019年第10期854-861,共8页Engineering Journal of Wuhan University

基　　金：国家自然科学基金青年项目（编号：41701379）;中国博士后科学基金项目（编号：IWHR-SKL-KF201809）

摘　　要：利用1973-2018年共48景Landsat卫星影像,基于同期Landsat影像建立了东湖悬浮物(total suspended solids, TSS)反演模型,分析得到了东湖TSS的长时序变化趋势.结果显示,在1973-1998年间,东湖TSS浓度先上升,在1998年前后达到最高值,而后缓慢下降,自2010年起趋于稳定.这说明武汉市的湖泊保护与治理措施发挥了显著的作用.研究还发现,相比雨季数据,旱季数据反演结果波动性较小.This paper builds a total suspended solids(TSS) retrieving model based on in-situ data and synchronous Landsat imagery. The 48 Landsat images collected from 1973 to 2018 are used to acquire the trends of TSS in East Lake. The results show that TSS concentration increased from 1973 to 1998, and reached the peak around 1998;then it went down slowly and became stable since 2010. It means lake protection strategies conducted by Wuhan played a significant role. The study also finds that result generated with data collected in dry season is more stable than that with data collected in rainy season.

关 键 词：东湖 悬浮物 水质遥感 LANDSAT 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]