- Title
- Slope base layer
- Abstract
The slope base layer represents the spatial extent of the slope 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 slope is “the deepening sea floor out from the shelf edge to the upper limit of the continental rise, or the point where there is a general decrease in steepness” (IHO, 2008). In this study, the foot of slope was digitised manually at a nominal spatial scale of 1:500,000 in ArcGIS based on 100 m contours and 3D viewing. ArcGIS was used to highlight zones of abrupt changes in seabed gradient (contour spacing) which suggests the foot of slope in many areas. In areas where marginal plateaus abut the margin, the foot of slope was allowed to extend offshore to encompass the plateau feature, where a clear seaward dipping gradient was apparent. Otherwise the first significant decrease in gradient encountered ...
- 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:
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+ Adapt — remix, transform, and build upon the material
+ for any purpose, even commercially.
+ This license is acceptable for Free Cultural Works.
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+ 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 Slope
- 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
- -76.516487121582000
- Extension y1
- 84.540817260742200
- Restrictions
- no limitations on public access
- Purpose
The slope base layer represents the spatial extent of the slope 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:Slope
- Metadata Page
- /layers/ialtantic_geonode_data:geonode:Slope/metadata_detail
- Thumbnail
- Slope base layer.png
- Remote Thumbnail
- Slope base layer.png
- Legend
- Slope base layer.png
- Zipped Shapefile
- Slope base layer.zip
- GeoJSON
- Slope base layer.json
- Excel
- Slope base layer.excel
- CSV
- Slope base layer.csv
- GML 3.1.1
- Slope base layer.gml
- GML 2.0
- Slope base layer.gml
- PNG
- Slope base layer.png
- Slope base layer.pdf
- JPEG
- Slope base layer.jpg
- Original Dataset
- Slope 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