- Title
- Shelf base layer
- Abstract
The shelf base layer represents the spatial extent of the shelf areas 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). The continental shelf is defined by IHO (2008)as “a zone adjacent to a continent (or around an island) and extending from the low water line to a depth at which there is usually a marked increase of slope towards oceanic depths”. The low-water mark is taken in this study as the 0 m depth contour. The shelf break (i.e. the line along which there is marked increase of slope at the seaward margin of a shelf) was digitised manually at a nominal spatial scale of 1:500,000 in ArcGIS based on 10 m, 50 m and 100 m contours, depending on the slope and bathymetric profile of the region. In most cases 100 m contours were sufficient at the selected scale of 1:500,000 to identify the shelf break. However, where there was a...
- License
- Creative Commons Attribution 4.0 International (CC BY 4.0)
-
+ This is a human-readable summary of (and not a substitute for) the license. Disclaimer.
+ You are free to:
+ Share — copy and redistribute the material in any medium or format
+ Adapt — remix, transform, and build upon the material
+ for any purpose, even commercially.
+ This license is acceptable for Free Cultural Works.
+ The licensor cannot revoke these freedoms as long as you follow the license terms.
+ Under the following terms:
+ Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
+
+ No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
+ Notices:
+ You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
+ No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
+ For more info see https://creativecommons.org/licenses/by/4.0/. - Publication Date
- Feb. 5, 2014, midnight
- Type
- Vector Data
- Keywords
- D1: Coastal benthic habitats Downloadable Data features seafloor depth seafloor, geomorphic features, habitats Shelf
- Category
- Oceans
- features and characteristics of salt water bodies (excluding inland waters). Examples: tides, tidal waves, coastal information, reefs
- Regions
- Global
- Approved
- Yes
- Published
- Yes
- Featured
- No
- Group
- Marine Geospatial Ecology Lab at Duke University
- Name
- jcleary
- jesse.cleary@duke.edu
- Position
- None
- Organization
- None
- Location
- Voice
- None
- Fax
- None
- Identification Image
-
- Spatial Extent
- ---
- Projection System
- EPSG:4326
- Extension x0
- -180.000000000000000
- Extension x1
- 180.000015258789000
- Extension y0
- -78.686973571777300
- Extension y1
- 84.207359313964800
- Restrictions
- no limitations on public access
- Purpose
The shelf base layer represents the spatial extent of the shelf areas of the worlds oceans based on interpretation of the SRTM30 plus v7 global bathymetry...
- Language
- English
- Supplemental Information
No information provided
- Name
- jcleary
- jesse.cleary@duke.edu
- Position
- None
- Organization
- None
- Location
- Voice
- None
- Fax
- None
- Link Online
- /layers/ialtantic_geonode_data:geonode:Shelf
- Metadata Page
- /layers/ialtantic_geonode_data:geonode:Shelf/metadata_detail
- Thumbnail
- Shelf base layer.png
- Remote Thumbnail
- Shelf base layer.png
- Legend
- Shelf base layer.png
- GeoJSON
- Shelf base layer.json
- Excel
- Shelf base layer.excel
- CSV
- Shelf base layer.csv
- GML 3.1.1
- Shelf base layer.gml
- GML 2.0
- Shelf base layer.gml
- Zipped Shapefile
- Shelf base layer.zip
- PNG
- Shelf base layer.png
- Shelf base layer.pdf
- JPEG
- Shelf base layer.jpg
- Original Dataset
- Shelf base layer.zip
- OGC WFS: geonode Service
- Geoservice OGC:WFS
- OGC WMS: geonode Service
- Geoservice OGC:WMS
- Name
- jcleary
- jesse.cleary@duke.edu
- Position
- None
- Organization
- None
- Location
- Voice
- None
- Fax
- None