Open AccessRemote sensing monitoring of monthly surface water changes in Bosten Lake (1990-2020)
Author(s) -
Hongxing Wang,
Shanshan Hu,
Tao Zhang,
Miaomiao Ji
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 - 10.1088/1755-1315/821/1/012017
Subject(s) - environmental science , surface water , water balance , climate change , hydrology (agriculture) , physical geography , atmospheric sciences , climatology , geology , geography , oceanography , environmental engineering , geotechnical engineering
Climate change and human activities have led to changes in the lake surface water, monitoring the long-term monthly changes of the lake surface water is of great significance to maintain the ecological balance of lakes. Based on the Landsat images and Google Earth Engine (GEE), we monitored the bi-monthly dynamics of the surface water of Bosten Lake in the past 30 years. The results show that: in the past 30 years, the maximum surface water of the lake is 1167.18 km 2 ; the inter-annual dynamics of Bosten Lake surface water were divided into four stages: sharp decrease during 1990-1991, increase during 1992-2002, decrease again during 2003-2012, and finally recovery from 2013 to 2020; the annual changes of lake surface water have a certain pattern, decreasing from March to July, increasing from July to September, and then starting to decrease again. The inter-annual variability of the surface water of Bosten Lake was mainly affected by human activities and climate factors.