Name: Subbasins

Display Field: WSHED_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Sub-Basins: The sub-basin data is identical geometry to the ‘deranged area’ boundaries produced by Archydro, an extension of ESRI ArcGIS software. The deranged area boundaries used to produce the sub-basins are themselves produced by hydro-correcting the DEM surface to reflect both natural environments and areas with human activity. Areas with more substantial human activity effect the drainage pattern of water and in particular storm-water runoff. This would include things like paved roads, paved parking lots and buildings. An effort has been made to produce deranged area boundaries at locations where storm-water runoff is directed (inlets, grates, storm-water ponds, etc.) and as well natural locations in the environment (sinks, depressions, confluences, etc.). Hydro-correcting involves a certain amount of modification and manipulation of the DEM surface to produce better results. For example, ‘burning’ in a channelized ditch along a road with many driveway aprons that obscure the subsurface ditch (driveway culverts) beneath. A deranged area boundary is created by leveling an area that approximates where the water would flow (inlet, pond, sinkhole, etc.) by way of gravity and infrastructure that directs it (ditches, curbs, etc.). From the leveled area the ArcHydro software uses the DEM to generate the drainage boundary (deranged area boundary) using the DEM surface.

Copyright Text:

Default Visibility: true

MaxRecordCount: 70000

Supported Query Formats: JSON, geoJSON

Min Scale: 9027.977411

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -9439454.476
YMin: 3532990.690200001
XMax: -9324438.6613
YMax: 3696523.6093999967
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [0, 0, 0, 0]
Outline:
Style: esriSLSDash
Color: [0, 180, 168, 255]
Width: 1
Label:
Description:
Transparency: 0
Labeling Info:

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

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• WSHED_NAME ( type: esriFieldTypeString, alias: Wshed_Name, length: 60 )
• BASIN_NAME ( type: esriFieldTypeString, alias: Basin_Name, length: 60 )
• NOTES ( type: esriFieldTypeString, alias: Notes, length: 255 )
• ACRES ( type: esriFieldTypeDouble, alias: Acres )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )
• CATCH_NAME ( type: esriFieldTypeString, alias: Catch_Name, length: 255 )
• YEAR ( type: esriFieldTypeString, alias: Year, length: 25 )

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata