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EFG MFT1.1 River deltas – current maps
MFT1. Brackish tidal biome
This page provides information about the valid indicative distribution map for the ecosystem functional group MFT1.1 Coastal river deltas. For older or alternative maps, see here.
Methods
Here is the methods summary for Map code and version: MFT1.1.map.orig v1.0.
The extent of major coastal deltas was taken directly from Tessler et al. (2015), which was checked for completeness against point locations shown in Fig. 1 of Goodbred & Saito (2012) and found to be inclusive of major occurrences. Represented at a spatial resolution of 30 arc-seconds. Original map at Deltas at risk.
Datasets
Processing
Processing steps used in this map are: Reclassification :: Thresholds.
Map evaluation
This map is considered to be a Fine quality map based on the following characteristics:
Concept alignment is Direct,specific.
Ground observations are yes.
The accuracy evaluation Qualitative expert assessment,documented,quantitative.
How to use the data
Available files
You can download geospatial data for this map from the following sources:
MFT1.1.WM.nwx (v1.0): Google Cloud bucket :: Mapbox tileset
Note that you need to login to some services like mapbox or earthengine, and in some cases you also need to request access to the files.
License information
Indicative maps have been released with a 
Creative Commons Attribution 4.0 International license.
License information for some datasets used to create this map is incomplete or undocumented. Check details below.
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References
References used in this version of the maps.
- Nienhuis, J.H., Ashton, A.D., Edmonds, D.A. et al. (2020) Global-scale human impact on delta morphology has led to net land area gain Nature 577, 514–518 DOI:10.1038/s41586-019-1905-9
- Z.D. Tessler, C.J. Vörösmarty, M. Grossberg, I. Gladkova, H. Aizenman, J.P.M. Syvitski, E. Foufoula-Georgiou (2015) Profiling Risk and Sustainability in Coastal Deltas of the World Science 349(6248), 638-643 DOI:10.1126/science.aab3574