EFG M2.2 Mesopelagic ocean waters – current maps

M2. Pelagic ocean waters biome

This page provides information about the valid indicative distribution map for the ecosystem functional group M2.2 Mesopelagic ocean water. For older or alternative maps, see here.

Methods

Here is the methods summary for Map code and version: M2.2.web.orig v2.0.

Indicative distributions of these marine pelagic ecosystem functional groups were derived from bathymetric spatial data obtained from Becker et al. (2009) using depth range thresholds cited in respective descriptive profiles for each functional group. Occurrences were mapped at 30 arc second spatial resolution.

Datasets

SRTM30-PLUS-V11 (Becker et al. 2009):

Source of topography and geomorphology. Resolution: ca. 1km2, static. Accuracy evaluation: quantitative (variable).

dataset	url
SRTM30-PLUS-V11	ftp://topex.ucsd.edu/pub/srtm30_plus/ :: https://topex.ucsd.edu/WWW_html/srtm30_plus.html

Processing

Processing steps used in this map are: Thresholds.

Map evaluation

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

Concept alignment is Direct,general.

Ground observations are NA.

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.

• Indicative Map (code: M2.2.IM.orig, version v2.0)
• Web navigation (code: M2.2.web.orig, version v2.0)

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

M2.2.IM.orig (v2.0): Google Cloud bucket

M2.2.web.orig (v2.0): Google Cloud bucket :: Zenodo repository (bundle of maps) :: Zenodo repository (EFG map) :: 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 might have some restriction for commercial use, see details below.

dataset	license_info
SRTM30-PLUS-V11	https://topex.ucsd.edu/pub/srtm30_plus/topo30/COPYRIGHT.txt

References

References used in this version of the maps.

• Becker JJ, Sandwell DT, Smith WHF, Braud J, Binder B, Depner J, Fabre D, Factor J, Ingalls S, Kim S-H, Ladner R, Marks K, Nelson S, Pharaoh A, Trimmer R, Von Rosenberg J, Wallace G, Weatherall P (2009) Global Bathymetry and Elevation Data at 30 Arc Seconds Resolution: SRTM30_PLUS, Marine Geodesy 32: 355-371. DOI:10.1080/01490410903297766