[Dataset Title/Name]: The Global Lakes and Wetlands Database (GLWD) version 2

[pinkychow1010]

Contact Details

pinkychow1010@gmail.com

Dataset description

Dataset Description
The Global Lakes and Wetlands Database (GLWD) version 2 provides a comprehensive and seamless global map of inland surface waters distinguished into 33 waterbody and wetland types (e.g. Tropical peatland, Mangrove, Saltmarsh, Delta). GLWD v2 was developed by harmonizing the best available ground- and satellite-based data sources and has been designed to represent the maximum non-overlapping extents of aquatic ecosystems over the broad contemporary period of 1990-2020.

GLWD v2 represents a total of 18.2 million km2 of wetlands at a grid cell resolution of 15 arc-seconds (approximately 500 m at the equator). The data consists of a map of the dominant waterbody or wetland type in each grid cell, as well as 33 individual class layers which represent the sub-cell fraction of each specific class within each grid cell.

Comment
I suggest to include the raster layers stored in "GLWD_v2_delta_area_by_class_pct_tif.zip" and "GLWD_v2_delta_combined_classes_tif.zip", which provides pixel-wise information on 1) what is the major wetland class, and 2) the percentage of each class in the pixel. My idea is that we can have a image / image collection with bands:
major_class, 01_freshwater_lake_pct, 02_saline_lake_pct, ... , 33_paddy_rice_pct, 00_dryland_pct.

Data Download
https://figshare.com/s/e40017f69f41f80d50df

License
GLWD version 2 is licensed under a Creative Commons Attribution (CC-BY) 4.0 International License.

By downloading and using the data the user agrees to the terms and conditions of this license.

References
Lehner, B., Anand, M., Fluet-Chouinard, E., Tan, F., Aires, F., Allen, G.H., Bousquet, P., Canadell, J.G., Davidson, N., Finlayson, C.M., Gumbricht, T., Hilarides, L., Hugelius, G., Jackson, R.B., Korver, M.C., McIntyre, P.B., Matthews, E., Nagy, S., Olefeldt, D., Pavelsky, T., Pekel, J.-F., Poulter, B., Prigent, C., Wang, J., Worthington, T.A., Yamazaki, D., Thieme, M. (in preparation). Mapping the world’s inland waters: an update to the Global Lakes and Wetlands Database (GLWD v2).

Earth Engine Snippet if dataset already in GEE

var glwd = ee.ImageCollection("/glwd")

var wetland = glwd.select("major_class").gt(0).selfMask();

Map.addLayer(wetland, {palette: '#5F9EA0'}, "Global Wetland Coverage")

Enter license information

CC-BY-4.0

Keywords

coast, wetland, mangrove, blue carbon, water

Code of Conduct

• I agree to follow this project's Code of Conduct

[asdsaah]

@samapriya
Data Download Link: Yes—It is available for download at GLWD; Uplaoded to GEE, not working.
Citation: Yes - reference [see details above].
License for Use: Yes - data is available under CC-BY-4.0.

@pinkychow1010: It looks like the GEE snippet provided leads to a collection that doesn't exist or has public sharing permissions; let me know if you can get it working or if you need an alternative name.