<p>This dataset is vector surface data of Lake Issyk from 1990 to 2018. The attribute information includes the orbit number, mapping date and NDWI value of the image data source. There were 174 stages (102 TM stages, 72 LC8 stages). </p>
Using Landsat TM/ETM+/OLI data published on the U.S. Geological Survey (USGS) Global Visualization Browser (Glovis)(http://glovis.usgs.gov) website as remote sensing data sources, including 69 Landsat5 images from 1990 to 2011, 32 Landsat7 images from 1999 to 2006, and 72 Landsat8 images from 2013 to 2018.
The water body of Issyk Lake in the image is extracted based on the normalized water index (NDWI) in the green band and near infrared band.
The data from the 1990s ranged from 1990 to 1999, but there was no data for 1992, and only one month of data for 1991, 1997 and 1998. In the first 10 years of the 21st century, there was no data for 2005, and the data for 2004, 06 and 07 were only 1-2 months each, and the remaining years had more than 3 months of data; from 2010 to 2017, there was no data for 2012, and there was 4 months of data for 2018, and the remaining years had 12 months of data for the whole year.
| # | number | name | type |
| 1 | XDA20000000 | Other |
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CSTR:33110.11.ariddc.00419
10.12389/ariddc.00419
