Global 30-m annual maximum land surface water cover in 2000, 2005, 2010, 2015, 2021 (GAMLSW30)

Dataset Overview

Global annual maximum land surface water cover refers to the maximum distribution of all types of water present on the land surface, derived from all available Landsat satellite data within the year. The distribution of global land surface water cover is strongly influenced by global change, and its changes have important implications for biodiversity and the health of water-related ecosystems. The production method is to apply the remote-sensing feature indices threshold rules based on prior knowledge to extract land surface water information from multi-temporal Landsat data of the same area within a year and integrate the results into the global annual maximum land surface water cover product.

Dataset Details

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Spatial Resolution: 30m

Time Resolution: Annual

Product Number: XDA19090301_003

Create Institution: International Research Center of Big Data for Sustainable Development Goals

Created By: Huichan Liu, Guojin He, Ranyu Yin, Yan Peng, Guizhou Wang

Creation Date: 2023-03-22T05:41:16.677Z

File Size: 5

Data Format: GeoTiff

Type Of Data: grid

Data Label:

Land surface water cover

30m resolution

global

Remote sensing

Naming Convention

This product uses the WGS84 geographic coordinate system and longitude and latitude projection (EPSG: 4326). The data are stored in GeoTIFF format. Each annual product contains 612 spatial tile files, each tile file having a spatial extent of 10° ×10°
latitude and longitude (approximately 37000×37000 pixels). Each tile file contains a single layer (band), with a value of 1 for nonland surface water cover and a value of 2 for land surface water cover.

Paper Citation

Huichan Liu, Guojin He, Yan Peng, et al. 2021. Dynamic monitoring of surface water in the Tibetan Plateau from 1980s to 2019 basedon satellite remote sensing images. Journal of Mountain Science, 18, 2833–2841 (2021). https://doi.org/10.1007/s11629-020-6482-8

Data Citation

Huichan Liu, Guojin He. Global 30-m annual maximum land surface water cover in 2000, 2005, 2010, 2015, 2021 (GAMLSW30), Beijing: International Research Center of Big Data for Sustainable Development Goals (CBAS), 2023. doi: 10.12237/casearth.640f007a819aec3f2b52a48c

Data Licence Agreement

Users of this data product shall clearly indicate the source and the authors of "Global 30-m annual maximum land surface water cover in 2000, 2005, 2010, 2015, 2021" in all forms of their research output (including, but not limited to, published and unpublished papers/reports, theses, monographs, data products, and other academic output) generated by using this data product, and shall cite the corresponding references. The data producers shall not be liable for any loss arising from the use of this data product. The boundaries and masks used in the maps do not represent an official opinion or endorsement by the data producers.