Parent Layer: High Resolution Tidal Wetlands

Name: High Resolution Tidal Wetlands

Display Field: Class_Name

Type: Feature Layer

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Description: Tidal wetland systems are important transitional habitats between the ocean and land. Salt marshes in particular provide essential functions and values from a human perspective. They support healthy fisheries, protect shorelines from erosion, reduce flooding, protect water quality, and provide essential fish and wildlife habitat. This data set is intended to establish a baseline to document statewide tidal wetland change over time. It focuses on salt marsh system response to relative sea level rise, documenting both changing quality and quantity of this habitat. Data was derived from high resolution multispectral orthoimagery collected on August 24, 2013 through the Piscataqua Region Estuaries Partnership and LiDAR data collected through the LiDAR for the NorthEast project (2011). Draft maps were created in 2015 and accuracy assessments continued until 2018.

Copyright Text: NOAA's Office for Coastal Management, Great Bay National Estuarine Research Reserve, and NH Coastal Program.

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Spatial Reference: 102710  (3437)

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• Value: Brackish Marsh
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