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Service Description: Shoreline is digitized using the most current imagery available at the time of the inventory. Imagery ranges from 1994 DOQQs to imagery collected as part of the Virginia Base Mapping Program (VBMP). Other imagery (Bing maps, Google Earth) is used to help in areas where VBMP imagery cannot resolve the boundary with a high degree of certainty. This digital shoreline is then used as the baseline for mapping shoreline conditions as part of the Shoreline Inventories. Shoreline (prior to publication year 2015) represents the boundary between land and water. Mapped shoreline b(eginning in 2015) represents the boundary between the water and the upland; or where marshes exist, the upland edge of the tidal marsh.

Map Name: Layers

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All Layers and Tables

Layers:

• Shoreline (0)
• Shoreline (1)

Description:

Copyright Text: Center for Coastal Resources Management, Virginia Institute of Marine Science, Gloucester Point, Virginia

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent:

XMin: -8735133.79468297
YMin: 4607154.162944832
XMax: -8285215.45601703
YMax: 4747600.540894999
Spatial Reference: 102100  (3857)

Full Extent:

XMin: -8650415.015
YMin: 4376590.500200003
XMax: -8378093.669299999
YMax: 4729933.3961
Spatial Reference: 102100  (3857)

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Title:
Author:
Comments: The Virginia Institute of Marine Science published the first Tidal marsh Inventories using data collected in the early 1970's. Using high resolution color infra-red imagery from 2009, 2011 and 2013 new Tidal Marsh Inventories have been developed beginning in 2010. Marsh boundaries were generated using heads-up digitizing techniques at a scale of 1:1,000. From 2010 through 2014 marsh polygons were classified by morphologic type: fringe, extensive, embayed, or marsh island. Beginning in 2015, morphologic classification was discontinued. Marshes were ground-truthed in the field where a community type index was assigned to each marsh based on plant community make-up.
Subject: This map service shows the most recent Virginia Tidal Marsh Inventory (2011-2015). Tidal marshes are displayed by Community Type.
Category:
Keywords: Virginia,Chesapeake Bay,Shoreline
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info

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