Ready-To-Use (RTU) Remote Sensing Products Zone II Versions ZH3 Vol 5 (4) 2020
Inland surface water products with 30 m spatial resolution in Lanmei Watershed
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Abstract & Keywords
Abstract: The land surface water products with a spatial resolution of 30 m in Lanmei Watershed were produced by using the water intelligent extraction method driven by multi-indexes and prior knowledge on a global scale based on the Landsat 8 surface reflectance data. Data was first preprocessed, and then NDWI, NDVI, NDBI and terrain indexes were calculated. After that, the existing land surface water products were used as prior knowledge to select water and non-water samples and perfect samples . Finally, the decision tree model was used to train samples to determine the adaptive threshold of its corresponding index. Consequently, the high-precision inland surface water thematic map with the accuracy of above 98% was generated. The result is stored in GeoTiff format. This dataset can provide significant data support and guarantee for water resources security and management, climate change, and ecological environment in Lanmei Watershed.
Keywords: Lanmei watershed; inland surface water; multi-indexes; prior knowledge; adaptive threshold
Dataset Profile
TitleInland surface water products with 30 m spatial resolution in Lanmei Watershed of 2018
Data corresponding authorHe Guojin (
Data authorsPeng Yan, He Guojin, Zhang Zhaoming, Yin Ranyu
Time rangeJanuary, 2018 to December, 2018
Geographical scopeLanmei watershed (91°42′E–109°58′E,5°7′N–29°45′N)
Spatial resolution30 m
Data volume1GB
Data format*.tiff (GeoTIFF, Byte)
Data service system<>
Sources of fundingStrategic Priority Research Program of the Chinese Academy of Sciences (XDA19090300); National Natural Science Foundation of China (61731022); STS project of Chinese Academy of Sciences (Grant No. KFZD-SW-316).
Dataset compositionThe dataset provides a water extraction result and the corresponding imaging date file.
Article and author information
Peng Yan
He Guojin
Wang Guizhou
Yin Ranyu
Publication records
Released: June 3, 2020 ( VersionsZH2
Published: Dec. 27, 2020 ( VersionsZH3