427e4508-dd77-11eb-9b1a-0242c0a82008 eng utf8 dataset jesse.cleary@duke.edu pointOfContact jesse.cleary@duke.edu author 2024-03-23T07:13:03Z ISO 19115:2003 - Geographic information - Metadata ISO 19115:2003 4326 EPSG 6.11 geonode:Shelf Shelf base layer 2014-02-05T00:00:00Z publication mapDigital 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 gradual break in slope over a broad area, more closely spaced contours were used. Floating ice shelves cover large sections of the Antarctic continental shelf and these areas were simply left blank. 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 global seafloor geomorphic features map is intended to support ocean management including feature inventories, spatial planning and biodiversity conservation. completed jesse.cleary@duke.edu originator https://www.geonode.iatlantic.eu/uploaded/thumbs/layer-427e4508-dd77-11eb-9b1a-0242c0a82008-thumb.png Thumbnail for 'Shelf base layer' image/png ESRI Shapefile 1.0 D1: Coastal benthic habitats Downloadable Data features seafloor depth seafloor, geomorphic features, habitats Shelf theme Global place 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. (https://creativecommons.org/licenses/by/4.0/) no limitations on public access eng utf8 oceans -180.0 180.000015259 -78.6869735718 84.207359314 No information provided https://www.geonode.iatlantic.eu WWW:LINK-1.0-http--link Online link to the 'Shelf base layer' description on GeoNode https://www.geonode.iatlantic.eu/uploaded/thumbs/layer-427e4508-dd77-11eb-9b1a-0242c0a82008-thumb.png WWW:DOWNLOAD-1.0-http--download .png Shelf base layer (Thumbnail Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode:Shelf&crs=EPSG:4326&service=WMS&format=image/png8&access_token=1MI5ZMcDN8pkW4Dlv0gIPR99u0iymr&request=GetMap&height=180&width=240&version=1.1.1&bbox=-180.000000000000000,-78.686973571777300,180.000015258789000,84.207359313964800 WWW:DOWNLOAD-1.0-http--download .png Shelf base layer (Remote Thumbnail Format) https://www.geonode.iatlantic.eu/geoserver/ows?service=WMS&request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER=geonode:Shelf&STYLE=Shelf&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on WWW:DOWNLOAD-1.0-http--download .png Shelf base layer (Legend Format) https://www.geonode.iatlantic.eu/geoserver/ows?srsName=EPSG%3A4326&outputFormat=json&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .json Shelf base layer (GeoJSON Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=excel&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .excel Shelf base layer (Excel Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=csv&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .csv Shelf base layer (CSV Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=text%2Fxml%3B+subtype%3Dgml%2F3.1.1&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .gml Shelf base layer (GML 3.1.1 Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=gml2&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .gml Shelf base layer (GML 2.0 Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=SHAPE-ZIP&service=WFS&srs=EPSG%3A4326&request=GetFeature&format_options=charset%3AUTF-8&typename=geonode%3AShelf&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .zip Shelf base layer (Zipped Shapefile Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3AShelf&service=WMS&format=image%2Fpng&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-78.686973571777300%2C180.000015258789000%2C84.207359313964800&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .png Shelf base layer (PNG Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3AShelf&service=WMS&format=application%2Fpdf&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-78.686973571777300%2C180.000015258789000%2C84.207359313964800&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .pdf Shelf base layer (PDF Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3AShelf&service=WMS&format=image%2Fjpeg&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-78.686973571777300%2C180.000015258789000%2C84.207359313964800&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .jpg Shelf base layer (JPEG Format) https://www.geonode.iatlantic.eu/download/260 WWW:DOWNLOAD-1.0-http--download .zip Shelf base layer (Original Dataset Format) https://www.geonode.iatlantic.eu/geoserver/ows OGC:WFS geonode:Shelf Service - Provides Layer: Shelf base layer https://www.geonode.iatlantic.eu/geoserver/ows OGC:WMS geonode:Shelf Service - Provides Layer: Shelf base layer dataset