20130906
10313700
1.0
INSPIRE Metadata Directive
FALSE
Escarpments
50.202
-180.000000
180.000000
-76.989179
89.602200
1
002
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.8.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>
WGS_1984_Web_Mercator_Auxiliary_Sphere
20211006
10200500
20211006
10200500
INSPIRE
Miles Macmillan-Lawler
GRID-Arendal
Miles.Macmillan-Lawler@grida.no
Escarpment geomorphic feature layer
vector digital data
2013-06-05T00:00:00
2014-02-14T00:00:00
Version 1
Miles Macmillan-Lawler
GRID-Arendal
Miles.Macmillan-Lawler@grida.no
Global Coverage
The escarpment geomorphic feature layer represents the spatial extent of the escarpments 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.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The </SPAN><SPAN>escarpment </SPAN><SPAN>geomorphic feature layer represents the spatial extent of the </SPAN><SPAN>escarpment</SPAN><SPAN>s 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). </SPAN><SPAN>Escarpments are “an elongated, characteristically linear, steep slope separating horizontal or gently sloping sectors of the sea floor in non-shelf areas. Also abbreviated to scarp” (IHO, 2008). Escarpments, like basins, overlay other features (i.e. other individual features may be partly or wholly covered by escarpments). Thus features like the continental slope, seamounts, guyots, ridges and submarine canyons (for example) may be sub-classified in terms of their area of overlain escarpment.</SPAN><SPAN /><SPAN>Escarpments were calculated based on the gradient of the SRTM30_PLUS model.</SPAN></P></DIV></DIV></DIV>
The global seafloor geomorphic features map has been produced through a collaboration between Geoscience Australia, GRID-Arendal and Conservation International.
Reference: Harris et. al. (2014) Geomorphology of the oceans.Marine Geology (in Press)
global
seafloor
geomorphology
geomorphic feature
escarpment
habitat
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The global seafloor geomorphic feature map is available for download from bluehabitats.org</SPAN></P></DIV></DIV></DIV>
seafloor, geomorphic features, habitats
global
Miles Macmillan-Lawler
GRID-Arendal
Miles.Macmillan-Lawler@grida.no
Esri ArcGIS 12.8.0.29751
1
-180.000000
180.000000
89.602200
-76.989179
Escarpments
Feature Class
0
The polygons represent the boundaries for the continents of the world.
ESRI
objectid
objectid
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
shape
Geometry
8
0
0
Feature geometry.
ESRI
Coordinates defining the features.
UniqueID
UniqueID
String
10
0
0
Geomorphic
Geomorphic
String
20
0
0
area_km2
area_km2
Double
8
38
8
st_area(shape)
st_area(shape)
Double
0
0
0
st_length(shape)
st_length(shape)
Double
0
0
0
Enterprise Geodatabase Feature Class
50.202
dataset
EPSG
6.18.3(9.3.1.2)
0
Simple
FALSE
0
TRUE
FALSE
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