- Title
- Trench geomorphic feature layer
- Abstract
The trench geomorphic feature layer represents the spatial extent of the trenches 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). Trenches are “a long narrow, characteristically very deep and asymmetrical depression of the sea floor, with relatively steep sides” (IHO, 2008). Trenches are generally distinguished from troughs by their “V” shape in cross section (in contrast with flat-bottomed troughs). In this study trenches were mapped by selecting closed bathymetric contours that defined basins contained within the trench feature, and then joining the basin segments together by hand digitizing along more elevated sections. In this way, bridge features were also identified (as coinciding with infilled sections of trenches; see section on “bridges”).
- 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
- Downloadable Data features seafloor, geomorphic features, habitats Trenches
- 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
- 180.000000000000000
- Extension y0
- -61.062679290771500
- Extension y1
- 55.526454925537100
- Restrictions
- no limitations on public access
- Purpose
The trench geomorphic feature layer represents the spatial extent of the trenches of the worlds oceans based on interpretation of the SRTM30 plus v7 globa...
- Language
- English
- Supplemental Information
No information provided
- Name
- Tim Collart (admin)
- tim.collart@seascapebelgium.be
- Position
- Marine Data & GIS Specialist
- Organization
- Seascape Belgium
- Location
- 8400 Oostende BEL
- Voice
- None
- Fax
- None
- Link Online
- /layers/ialtantic_geonode_data:geonode:Trenches
- Metadata Page
- /layers/ialtantic_geonode_data:geonode:Trenches/metadata_detail
- Thumbnail
- Trench geomorphic feature layer.png
- Remote Thumbnail
- Trench geomorphic feature layer.png
- Legend
- Trench geomorphic feature layer.png
- Zipped Shapefile
- Trench geomorphic feature layer.zip
- GeoJSON
- Trench geomorphic feature layer.json
- Excel
- Trench geomorphic feature layer.excel
- CSV
- Trench geomorphic feature layer.csv
- GML 3.1.1
- Trench geomorphic feature layer.gml
- GML 2.0
- Trench geomorphic feature layer.gml
- PNG
- Trench geomorphic feature layer.png
- Trench geomorphic feature layer.pdf
- JPEG
- Trench geomorphic feature layer.jpg
- Original Dataset
- Trench geomorphic feature layer.zip
- OGC WFS: geonode Service
- Geoservice OGC:WFS
- OGC WMS: geonode Service
- Geoservice OGC:WMS
- Name
- Tim Collart (admin)
- tim.collart@seascapebelgium.be
- Position
- Marine Data & GIS Specialist
- Organization
- Seascape Belgium
- Location
- 8400 Oostende BEL
- Voice
- None
- Fax
- None
- Keywords
- GIS