Articles | Volume 17, issue 6
https://doi.org/10.5194/essd-17-2277-2025
https://doi.org/10.5194/essd-17-2277-2025
Data description paper
 | 
04 Jun 2025
Data description paper |  | 04 Jun 2025

Mapping the world's inland surface waters: an upgrade to the Global Lakes and Wetlands Database (GLWD v2)

Bernhard Lehner, Mira Anand, Etienne Fluet-Chouinard, Florence Tan, Filipe Aires, George H. Allen, Philippe Bousquet, Josep G. Canadell, Nick Davidson, Meng Ding, C. Max Finlayson, Thomas Gumbricht, Lammert Hilarides, Gustaf Hugelius, Robert B. Jackson, Maartje C. Korver, Liangyun Liu, Peter B. McIntyre, Szabolcs Nagy, David Olefeldt, Tamlin M. Pavelsky, Jean-Francois Pekel, Benjamin Poulter, Catherine Prigent, Jida Wang, Thomas A. Worthington, Dai Yamazaki, Xiao Zhang, and Michele Thieme

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2024-204', Anonymous Referee #1, 19 Aug 2024
    • AC1: 'Reply on RC1', Bernhard Lehner, 29 Dec 2024
  • RC2: 'Comment on essd-2024-204', Anonymous Referee #2, 28 Sep 2024
    • AC2: 'Reply on RC2', Bernhard Lehner, 29 Dec 2024
  • RC3: 'Comment on essd-2024-204', Anonymous Referee #3, 28 Oct 2024
    • AC3: 'Reply on RC3', Bernhard Lehner, 29 Dec 2024

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Bernhard Lehner on behalf of the Authors (05 Jan 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (13 Feb 2025) by Alexander Gelfan
AR by Bernhard Lehner on behalf of the Authors (02 Mar 2025)  Author's response   Manuscript 
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Short summary
The Global Lakes and Wetlands Database (GLWD) version 2 distinguishes a total of 33 non-overlapping wetland classes, providing a static map of the world’s inland surface waters. It contains cell fractions of wetland extents per class at a grid cell resolution of ~500 m. The total combined extent of all classes including all inland and coastal waterbodies and wetlands of all inundation frequencies – that is, the maximum extent – covers 18.2 × 106 km2, equivalent to 13.4 % of total global land area.
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