Open AccessRecent Shoreline Variations Analysis Using Landsat 8 OLI Imagery in East Dongting Lake, China
Author(s) -
Junjie Zhou,
Mingwu Ou,
Jianqiang Shi,
Ying Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/668/1/012029
Subject(s) - shore , wetland , hydrology (agriculture) , qinghai lake , water area , elevation (ballistics) , yangtze river , water level , enclosure , china , physical geography , geology , environmental science , geography , oceanography , ecology , cartography , archaeology , telecommunications , geometry , geotechnical engineering , mathematics , computer science , biology
Dongting Lake, located in the northeast of Hunan Province, is the second largest fresh water lake in China. Based on Landsat 8 OLI imagery in 2013 and 2016, the shoreline of East Dongting Lake in different periods was explained through processing of radiation correction, geometric correction and band combination, etc., and the temporal sequence variation characteristics of the lake shoreline were explored. The results show that there is no obvious variation in the shoreline around the lake, and the area of East Dongting Lake is stable of 1300km 2 . Typical shoreline monitoring in the lake area shows that recently there is a new enclosed area in the middle of the Luhu Reed Field. The enclosed area covers an area of 1.98km 2 , about 3,000 mu, and the top elevation of the enclosed area is between 30 and 32m. Moreover, East Dongting Lake is an internationally important wetland reserve and a significant regulating lake of the Yangtze River. The shoreline of East Dongting Lake is stable latterly, but the development of low enclosure and net enclosure in the lake area has not been prohibited for a long time. As far as the lake area management is concerned, we should pay more attention to supervision of illegal activities such as enclosing land in the lake area.