EFG MT1.2 Muddy shores – current maps

MT1. Shorelines biome

This page provides information about the valid indicative distribution map for the ecosystem functional group MT1.2 Muddy Shorelines. For older or alternative maps, see here.

Methods

Here is the methods summary for Map code and version: MT1.2.IM.orig v1.0.

Tidal flats were mapped directly from remote sensing time series and aggregated to 1 degree spatial resolution by Murray et al. (2019). Major occurrences were mapped in 1-degree cells with >200km2 mudflat extent, and minor occurrences were mapped in cells with 5-200km2 mudflat extent.

Datasets

TidalFlats2019 (Murray NJ et al. 2019):

Source of modeled and validated distribution from remote sensors. Resolution: <1km, time series. Accuracy evaluation: quantitative (variable).

dataset	url
TidalFlats2019	https://data.unep-wcmc.org/datasets/47 :: https://www.intertidal.app/download

Processing

Processing steps used in this map are: Aggregation.

Map evaluation

This map is considered to be a Fine quality map series based on the following characteristics:

Concept alignment is Direct,specific.

Ground observations are yes.

The accuracy evaluation Quantitative accuracy assessment,documented,quantitative.

How to use the data

Available files

Following maps are considered current and valid indicative distribution maps for this ecosystem functional group. Web navigation maps are optimised for use in webapps, but they have similar methods and differ only in details of format and processing.

• Web navigation (code: MT1.2.web.map, version v1.0)
• Indicative Map (code: MT1.2.IM.orig, version v1.0)

You can download geospatial data for this map from the following sources:

MT1.2.web.map (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps) :: Mapbox tileset :: Earth Engine assets

MT1.2.IM.orig (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps)

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.

Datasets used to create this map have similar licenses, but please check the license information below.

dataset	license_info
TidalFlats2019	Creative Commons Attribution 4.0 International License :: https://creativecommons.org/licenses/by/4.0/

References

References used in this version of the maps.

• Murray NJ, Phinn SR, DeWitt M, Ferrari R, Johnston R, Lyons MB, Clinton N, Thau D, Fuller RA (2019) The global distribution and trajectory of tidal flats Nature 565: 222–225 DOI:10.1038/s41586-018-0805-8