Name: Canyons

Display Field: geomorphic

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The </SPAN><SPAN>canyon </SPAN><SPAN>geomorphic feature layer represents the spatial extent of the </SPAN><SPAN>canyon</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><SPAN>Submarine canyons are defined as “</SPAN></SPAN><SPAN><SPAN>steep-walled, sinuous valleys with V-shaped cross sections, axes sloping outward as continuously as river-cut land canyons </SPAN></SPAN><SPAN><SPAN>and relief comparable to even the largest of land canyons”</SPAN></SPAN><SPAN><SPAN>(Shepard, 1963</SPAN></SPAN><SPAN><SPAN>). “Large”</SPAN></SPAN><SPAN>canyons were mapped in this study based on the definition of Harris and Whiteway (2011), which requires canyons to extend over a depth range of at least 1,000 m and to be incised at least 100 m into the slope at some point along their thalweg. Canyon mapping in this study was based on a combination of automated and expert interpretation of the SRTM30</SPAN><SPAN /><SPAN>PLUS model. </SPAN></P></DIV></DIV></DIV>

Service Item Id: ab9877e84b514604a5e20874622aa095

Copyright Text: 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)

Default Visibility: true

MaxRecordCount: 1000

MaxSelectionCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -2.00375065465E7
YMin: -1.36304867574E7
XMax: 2.0037507067199998E7
YMax: 3.0240971958400004E7
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [249, 212, 252, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Feature Draw Order:

N/A

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: N/A

Fields:

• objectid ( nullable: false, alias: objectid, type: esriFieldTypeOID )
• geomorphic ( nullable: true, length: 20, alias: Geomorphic, type: esriFieldTypeString )
• area_km2 ( nullable: true, alias: area_km2, type: esriFieldTypeDouble )
• delta_d ( nullable: true, alias: Delta_D, type: esriFieldTypeSmallInteger )
• type ( nullable: true, length: 20, alias: type, type: esriFieldTypeString )
• mean_depth ( nullable: true, alias: Mean_Depth, type: esriFieldTypeDouble )
• length ( nullable: true, alias: Length, type: esriFieldTypeDouble )
• width ( nullable: true, alias: Width, type: esriFieldTypeDouble )
• ocean ( nullable: true, length: 50, alias: Ocean, type: esriFieldTypeString )
• canyon_id ( nullable: true, length: 10, alias: Canyon_ID, type: esriFieldTypeString )
• shape ( nullable: true, alias: shape, type: esriFieldTypeGeometry )
• st_area(shape) ( nullable: true, alias: st_area(shape), type: esriFieldTypeDouble )
• st_length(shape) ( nullable: true, alias: st_length(shape), type: esriFieldTypeDouble )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata