EFG M1.6 Subtidal rock reefs – current maps
M1. Marine shelf biome
This page provides information about the valid indicative distribution map for the ecosystem functional group M1.6 Subtidal rocky reefs. For older or alternative maps, see here.
Methods
Here is the methods summary for Map code and version: M1.6.web.orig v1.0.
These are ecosystem functional groups that are widespread through the global extent of the marine shelf biome. Reliable data on their precise distribution are limited. To represent regional uncertainty, their indicative distributions were mapped in as minor occurrences through the full extent of the marine ‘shelf’ base layer as mapped by Harris et al. (2014b). Occurrences were converted to 30 arc second spatial resolution.
Datasets
GSFM-2014 (Harris PT et al. 2014):
Source of topography and geomorphology. Resolution: variable (polygons), static. Accuracy evaluation: quantitative (subsets).
Processing
Processing steps used in this map are: Reclassification.
Map evaluation
This map is considered to be a Coarse quality map based on the following characteristics:
Concept alignment is Indirect,general.
Ground observations are no.
The accuracy evaluation Quantitative accuracy assessment,undocumented.
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.
- Indicative Map (code: M1.6.IM.orig, version v1.0)
- Web navigation (code: M1.6.web.orig, version v1.0)
You can download geospatial data for this map from the following sources:
M1.6.IM.orig (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps)
M1.6.web.orig (v1.0): Google Cloud bucket :: Zenodo repository (bundle of maps) :: Zenodo repository (EFG map) :: Mapbox tileset :: Earth Engine assets
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 |
|---|---|
| GSFM-2014 | https://creativecommons.org/licenses/by/4.0/ |
References
References used in this version of the maps.
- Harris PT, Macmillan-Lawler M, Rupp J, Baker EK (2014) Geomorphology of the oceans. Marine Geology 352: 4-24. 10.1016/j.margeo.2014.01.011