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| Type: | Resource | |
| Storage: | The size of this resource is 4.3 MB | |
| Created: | Aug 06, 2025 at 4:43 p.m. (UTC) | |
| Last updated: | Jul 28, 2026 at 3:18 p.m. (UTC) | |
| Citation: | See how to cite this resource | |
| Content types: | Single File Content |
| Sharing Status: | Public |
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| Views: | 991 |
| Downloads: | 66 |
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Abstract
Workflow for Swift et al 2026; all code available on Google Earth Engine. This code uses Otsu thresholding on median AWEI values, calculated from Sentinel-2 MSI imagery, to generate a binary "isWater" raster where 1 = water and 0 = not water.
GEE Script Permalinks:
01_CreateESW_SIZ: https://code.earthengine.google.com/0e0c31baaa401fcb607ff02993e0e818
02_CreateMWF_HY: https://code.earthengine.google.com/c51a6488b6315caa956570beb8074de4
02_MosaicMWF: https://code.earthengine.google.com/293edaeda9272150b0dfeecfd62abcd0
03_CreateESW_HY: https://code.earthengine.google.com/54b75b5b929e98ee2e0d788dd6e1a0a8
03_CREATE_ESW_HY_byID: https://code.earthengine.google.com/c0b889606ea573622e8e3c8efc74834b
04_CreateESWr_SIZ: https://code.earthengine.google.com/a14458a93192bc6f8b62670e821a979e
05_CreatESWr_HY: https://code.earthengine.google.com/315e0758be5c833c73957ff6eb595510
06_ValidateAccuracy: https://code.earthengine.google.com/7c1aed33d09b5c382d6db73357e0b3f4
Subject Keywords
Coverage
Spatial
Temporal
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Content
Related Resources
| Title | Owners | Sharing Status | My Permission |
|---|---|---|---|
| KAZA Surface Water Maps | Maggie Swift | Public & Shareable | Open Access |
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| WWF-US | None | None |
Contributors
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
| Name | Organization | Address | Phone | Author Identifiers |
|---|---|---|---|---|
| Graham McCulloch | Ecoexist | |||
| Robin Naidoo | WWF-US | |||
| Piet Beytell | Namibia MEFT | |||
| Anna Songhurst | Ecoexist |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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