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I am looking to map out the salt marshes, mangroves, and tidal flats of the world, but I am having difficulty finding data for this. Does anyone have any such data? This is for a research project at my university. Thanks

6

File Geodatabase of Mangroves here

http://www.iucnredlist.org/technical-documents/spatial-data#mangroves

Mangroves

The ranges are available as a single data set (File Geodatabase) for most plant species that considered to form part of the mangrove ecosystem.

Mangroves (zip file, 97.8 MB)

See metadata document for further information.

3

I believe those are also available in the National Wetland invnetory.
Managed by U.S Fish and Wildlife.
Perhaps not broken out quite like you mentioned.

This legend shows Vegetated and non-vegetated brackish and saltwater marsh, shrubs, beach, bar, shoal or flat all together.

And this code chart shows how to break out class-subclass and modifiers.

From the FWS website
And even an area to contribute data.

1

Koordinates.com are usually great with these things.

For example, here's one for the whole of New Zealand.

http://koordinates.com/maps/department-conservation/#/layer/148-nz-mangroves/

1

This database does it for mangrove globally for 2012 inclining percentage mangrove cover at the 30 m pixel level.

This is the URL to the paper and below is the data link.

http://faculty.salisbury.edu/~sehamilton/mangroves/

and this one has year 2000 presence and absence globally.

The IUCN Redlist link above is not actually a true mangrove location but a potential species region DB.

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