Name: Submerged Aquatic Vegetation Beds

Display Field: SALINITY

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <DIV STYLE="text-align:Left;font-size:12pt"><DIV><P><SPAN>The 2010-2020 Chesapeake Bay SAV GIS layers were 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.</SPAN></P></DIV></DIV>

Service Item Id: c83dfaa9ead54037b67c021543de4353

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

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Spatial Reference: 102100  (3857)

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• Value: TF
  Label: Tidal Fresh
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• Value: OH
  Label: Oligohaline or Slightly Salty
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Time Info:

Start Time Field: YEAR
End Time Field: null
Track ID Field: null
Time Extent:
[2010/01/01 00:00:00 UTC, 2020/01/01 00:00:00 UTC]

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Time Interval: 1
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