Remote Sensing Long-term Monitoring of Cyanobacterial Blooms in Yuqiao Reservoir |
| |
Authors: | Ang Yue Qingwei Zeng Huaijing Wang |
| |
Affiliation: | 1.Tianjin Eco-Environmental Monitoring Center, Tianjin 300191, China;2.Twenty First Century Aerospace Technology Co. , Ltd, Beijing 100096, China;3.Key Laboratory of Virtual Geographical Environment of Ministry of Education, College of Geographical Science, Nanjing Normal University, Nanjing 210023, China |
| |
Abstract: | Reservoir eutrophication leads serious threat to water supply safety. This paper apples Landsat time series satellite data from 2008 to 2017 to extract the distribution and degree of water bloom in Yuqiao Reservoir based on a threshold method to the correlation analysis results between Normalized Difference Vegetation Index (NDVI) and measured water quality parameters. Through the collaborative analysis of both natural and artificial factors, the water bloom was jointly drive by temperature, precipitation, and human activities. Among them, the ecological restoration project with human intervention could inhibit or slow down the blooms and effectively improve the water quality. Meteorological and spaceborne remote sensing data with higher temporal resolution will be more conducive the analyze the driver force of cyanobacteria blooms on small and medium-sized drinking water surfaces. Meanwhile, remote sensing data based monitoring and early warning technology could be promoted. |
| |
Keywords: | Landsat Normalized Difference Vegetation Index(NDVI) Water Bloom Remote Sensing Monitor |
|
| 点击此处可从《遥感技术与应用》浏览原始摘要信息 |
|
点击此处可从《遥感技术与应用》下载全文 |
|