Name: Virginia SAV Density 2010 to 2018

Display Field: DensityDef

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The 2010 Chesapeake Bay SAV Coverage was mapped from 1:24,000 black and white aerial photography to assess water quality in the Bay. Each area of SAV was interpreted from the rectified photography and classified into one of four density classes by the percentage of cover. The SAV beds were entered into an SDE GIS fetaure class using the quality control procedures documented below. The dataset contains all SAV areas that were identified from the areas flown. Some areas that are presumed to contain no SAV were not flown. Some small beds, particularly along narrow tributaries may not have been distinguishable on the aerial photography.

Definition Expression: N/A

Copyright Text: SAV Ecology, Monitoring, & Restoration Program, Virginia Institute of Marine Science

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

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: -8623265.1798
YMin: 4424180.459700003
XMax: -8378132.1099000005
YMax: 4709312.443899998
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: DensityDef
Field 2: null
Field 3: null
Field Delimiter: ,
Default Symbol:
N/A
Default Label: null
UniqueValueInfos:
• Value: 0 - 10% cover (very sparse)
  Label: 0 - 10% cover (very sparse)
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [217, 240, 211, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 0]
  Width: 0
• Value: 10 - 40% cover (sparse)
  Label: 10 - 40% cover (sparse)
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [166, 219, 160, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 0]
  Width: 0
• Value: 40 - 70% cover (moderate)
  Label: 40 - 70% cover (moderate)
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [90, 174, 97, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 0]
  Width: 0
• Value: 70 - 100% cover (dense)
  Label: 70 - 100% cover (dense)
  Description:
  Symbol:
  Style: esriSFSSolid
  Color: [27, 120, 55, 255]
  Outline:
  Style: esriSLSSolid
  Color: [0, 0, 0, 0]
  Width: 0
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

Time Info:

Start Time Field: YEAR
End Time Field: null
Track ID Field: null
Time Extent:
[2010/01/01 00:00:00 UTC, 2018/01/01 00:00:00 UTC]

Time Reference: N/A
Time Interval: 1
Time Interval Units: esriTimeUnitsYears
Has Live Data: false
Export Options:
Use Time: true
Time Data Cumulative: false
Time Offset: null (null)

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID , alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry , alias: Shape )
• BEDID ( type: esriFieldTypeString , alias: BEDID , length: 2 )
• DENSITY ( type: esriFieldTypeInteger , alias: DENSITY )
• BEDLABEL ( type: esriFieldTypeString , alias: BEDLABEL , length: 6 )
• ZONE_ ( type: esriFieldTypeInteger , alias: ZONE_ )
• CBPSEG ( type: esriFieldTypeString , alias: CBPSEG , length: 6 )
• ST ( type: esriFieldTypeString , alias: ST , length: 3 )
• QUADID ( type: esriFieldTypeInteger , alias: QUADID )
• Surveyed ( type: esriFieldTypeString , alias: Surveyed , length: 3 )
• sav_hab ( type: esriFieldTypeString , alias: sav_hab , length: 50 )
• YEAR ( type: esriFieldTypeSmallInteger , alias: YEAR )
• DensityDef ( type: esriFieldTypeString , alias: DensityDef , length: 50 )
• Shape_Length ( type: esriFieldTypeDouble , alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble , alias: Shape_Area )

Supported Operations:   Query   Generate Renderer   Return Updates

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