Title

Spreading ridges geomorphic feature layer

License

Creative Commons Attribution 4.0 International (CC BY 4.0)

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Abstract

The spreading ridge geomorphic feature layer represents the spatial extent of the spreading ridges of the worlds oceans based on interpretation of the SRTM30 plus v7 global bathymetry model. The layer is one of the 25 layers that make up the global seafloor geomorphic features map (Harris et.al. 2014). Mid-ocean spreading ridges are “the linked major mid-oceanic mountain systems of global extent” (IHO, 2008). Spreading ridges are distinguished from other ridges in this study (see definition of ridges below). They were mapped by hand based on their appearance as ridge-like features that coincide with the youngest ocean crust as mapped by Müller et al. (1997) in their “EarthByte” digital age grid of the ocean floor. Spreading ridges that were not visible in the SRTM30_PLUS bathymetry (100 m contours) were not included in our interpretation, but there is otherwise no size limitation on spreading ridges.

Publication Date

Feb. 5, 2014, midnight

Type

Vector Data

Keywords

Downloadable Data , features , seafloor, geomorphic features, habitats , Spreading_ridges

Category

Oceans

features and characteristics of salt water bodies (excluding inland waters). Examples: tides, tidal waves, coastal information, reefs

Regions

Global

Owner

jcleary

Group

Marine Geospatial Ecology Lab at Duke University

More info

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Restrictions

no limitations on public access

Purpose

The spreading ridge geomorphic feature layer represents the spatial extent of the spreading ridges of the worlds oceans based on interpretation of the SRT...

Language

English

Supplemental Information

No information provided

Layer WMS GetCapabilities document