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Layer: Changes_2013_2014 (ID: 2)

Name: Changes_2013_2014

Display Field: BEDID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The 2014 Chesapeake Bay SAV Coverage was mapped from 1:24,000 black and white aerial photography and digital multispectral imagery with a 25cm GSD 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.

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

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

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Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

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Use Standardized Queries: true

Supports Datum Transformation: true

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Type ID Field: null

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