7a3d45ac-dd77-11eb-9b1a-0242c0a82008 eng utf8 dataset jesse.cleary@duke.edu pointOfContact jesse.cleary@duke.edu author 2024-03-23T07:14:35Z ISO 19115:2003 - Geographic information - Metadata ISO 19115:2003 4326 EPSG 6.11 geonode:Slope Slope base layer 2014-02-05T00:00:00Z publication mapDigital 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 in a seaward direction from the shelf break was selected as the foot of slope. Note our foot of slope locations are based only on bathymetric data and our interpretation is not intended to define the foot of slope under Article 76 of the 1982 United Nations Convention on the Law of the Sea, particularly in areas of geomorphologically complex, continent-ocean transition. 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 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-7a3d45ac-dd77-11eb-9b1a-0242c0a82008-thumb.png Thumbnail for 'Slope base layer' image/png ESRI Shapefile 1.0 D1: Coastal benthic habitats Downloadable Data features seafloor depth seafloor, geomorphic features, habitats Slope 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 -76.5164871216 84.5408172607 No information provided https://www.geonode.iatlantic.eu WWW:LINK-1.0-http--link Online link to the 'Slope base layer' description on GeoNode https://www.geonode.iatlantic.eu/uploaded/thumbs/layer-7a3d45ac-dd77-11eb-9b1a-0242c0a82008-thumb.png WWW:DOWNLOAD-1.0-http--download .png Slope base layer (Thumbnail Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode:Slope&crs=EPSG:4326&service=WMS&format=image/png8&access_token=1MI5ZMcDN8pkW4Dlv0gIPR99u0iymr&request=GetMap&height=180&width=240&version=1.1.1&bbox=-180.000000000000000,-76.516487121582000,180.000015258789000,84.540817260742200 WWW:DOWNLOAD-1.0-http--download .png Slope 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:Slope&STYLE=Slope&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on WWW:DOWNLOAD-1.0-http--download .png Slope base layer (Legend 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%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .zip Slope base layer (Zipped Shapefile Format) https://www.geonode.iatlantic.eu/geoserver/ows?srsName=EPSG%3A4326&outputFormat=json&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .json Slope base layer (GeoJSON Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=excel&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .excel Slope base layer (Excel Format) https://www.geonode.iatlantic.eu/geoserver/ows?outputFormat=csv&service=WFS&srs=EPSG%3A4326&request=GetFeature&typename=geonode%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .csv Slope 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%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .gml Slope 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%3ASlope&version=1.0.0 WWW:DOWNLOAD-1.0-http--download .gml Slope base layer (GML 2.0 Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3ASlope&service=WMS&format=image%2Fpng&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-76.516487121582000%2C180.000015258789000%2C84.540817260742200&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .png Slope base layer (PNG Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3ASlope&service=WMS&format=application%2Fpdf&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-76.516487121582000%2C180.000015258789000%2C84.540817260742200&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .pdf Slope base layer (PDF Format) https://www.geonode.iatlantic.eu/geoserver/ows?layers=geonode%3ASlope&service=WMS&format=image%2Fjpeg&request=GetMap&height=550&width=550&bbox=-180.000000000000000%2C-76.516487121582000%2C180.000015258789000%2C84.540817260742200&srs=EPSG%3A4326 WWW:DOWNLOAD-1.0-http--download .jpg Slope base layer (JPEG Format) https://www.geonode.iatlantic.eu/download/263 WWW:DOWNLOAD-1.0-http--download .zip Slope base layer (Original Dataset Format) https://www.geonode.iatlantic.eu/geoserver/ows OGC:WFS geonode:Slope Service - Provides Layer: Slope base layer https://www.geonode.iatlantic.eu/geoserver/ows OGC:WMS geonode:Slope Service - Provides Layer: Slope base layer dataset