Name: SAV 2010

Display Field: sav2010

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 quality control procedures. 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.

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

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YMin: 4566811.297600001
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Spatial Reference: 102100  (3857)

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Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: GIS Object ID )
• sav2010 ( type: esriFieldTypeString, alias: SAV 2010, length: 30 )
• Shape ( type: esriFieldTypeGeometry, alias: GIS Shape )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: GIS Shape Area (m) )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: GIS Shape Length (m) )

Supported Operations:   Query   Generate Renderer   Return Updates

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