Authors / CoAuthors
Harris, P.T. | Baker, E.K.
Abstract
Effective management of the global ocean requires an inventory of its features and marine living and non-living resources. To help meet this need, a new global seafloor geomorphic features map (GSFM) has been created based on the analysis and interpretation of the Shuttle Radar Topography Mission (SRTM) 30 arc-second (~1 km) bathymetry grid. The new digital GSFM includes 131,190 separate polygons in 29 geomorphic feature categories. We present the first comprehensive identification, enumeration, inventory and quantitative analysis of the ocean's seafloor geomorphic features. The GSFM allows a more accurate assessment of features (proxies for benthic habitats, ecosystems and resources). GIS analysis of the GSFM illustrates that more than 50% of the area of 11 feature categories are located beyond the area of national jurisdiction, and less than 10% of 21 feature categories are protected in marine reserves globally, including shelf valleys, submarine canyons, mid-ocean spreading ridges and rift valleys.
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nonGeographicDataset
eCat Id
78222
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- External PublicationScientific Journal Paper
- ( Theme )
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- marine
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
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2010-01-01T00:00:00
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geoscientificInformation
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