Tidal Marsh Vegetation Classification (DEM), 3m, Northeast U.S.

Jan 26, 2018 (Last modified Feb 6, 2018)
Uploaded by Northeast
Download
Open in Map
Open in Map
Description:
This dataset represents salt marsh communities in the Northeast Atlantic coast. The classification was produced using a combination of Digital Elevation Model (DEM) and National Agriculture Imagery Program (NAIP) multispectral imagery. This dataset combined with "Tidal Marsh Vegetation Classification, no DEM, 3m, Northeast U.S." provides a contiguous classification of tidal marsh cover types from coastal Maine to Virginia. The eight distinct cover/community types identified are:

  1. High marsh: Area flooded during spring tides related to the lunar cycle and dominated by Spartina patens, Distichlis spicata, Juncus gerardii, and short form Spartina alterniflora. Other species include Juncus roemerianus, Scirpus pungens, Scirpus robustus, Limonium nashii, Aster tenuifolius, and Triglochin maritima.
  2. Low marsh: Area flooded regularly by daily tides and dominated by tall form Spartina alterniflora.
  3. Salt pools/pannes: Depressed, bare areas with sparse vegetation cover and extremely high soil salinities. Generally, pools retain water between high tides while pannes do not.
  4. Terrestrial border: Area infrequently flooded by storm and spring tides and can include areas of marsh with fresh/brackish water due to a high water table and/or runoff from impervious surfaces. Typical plant species include Typha angustifolia, Iva frutescens, Baccharis halimifolia, Solidago sempervirens, Scirpus robustus, and Spartina pectinata.
  5. Phragmites australis: A species of considerable management interest due to the invasive nature of an introduced form, especially in marshes with freshwater input, upland development, and/or increased nutrients.
  6. Mudflat: Exposed muddy areas free of vegetation.
  7. Open water (bordering cover type): Channels and bays leading to open ocean.
  8. Upland (bordering cover type): All non-marsh terrestrial cover.

Detailed zone descriptions, accuracy estimates for each cover type, and data limitation details are provided at https://nalcc.databasin.org/documents/documents/53ff96d6c2814d43aa92dc4948aa7d64/. For more information about the development of the data please contact Mo Correll at Maureen.correll@maine.edu. "Tidal Marsh Vegetation Classification, DEM, 3m, Northeast U.S.", "Tidal Marsh Vegetation Classification, no DEM, 3m, Northeast U.S.", and "DEM Difference in Tidal Marsh Vegetation Classification, 3m, Northeast U.S." are products of the Saltmarsh Habitat and Avian Research Program (www.tidalmarshbirds.org). NOTE: The data download includes all three datasets. All the data can also be found in the Tidal Marsh Vegetation Communities Gallery.
Data Provided By:
MD Correll, W Hantson, CS Elphick, WG Shriver, BB Cline, EL Tymkiw, and BJ Olsen. Fine-scale mapping of tidal marsh communities in the northeastern USA. In review. Product is a product of the Saltmarsh Habitat and Avian Research Program
Map Service URL:
https://gis.usgs.gov/sciencebase2/rest/services/Catalog/5a4d4db3e4b0d05ee8c4d195/MapServer/
Content date:
Field data collected summer of 2015 and 2016
Citation:
W Hantson, BJ Olsen, CS Elphick, WG Shriver, BB Cline, EL Tymkiw, and MD Correll, 2017. A classification of tidal marsh vegetation communities of the northeastern US. Product of the Saltmarsh Habitat and Avian Research Program (SHARP). Available at: https://www.tidalmarshbirds.org/?page_id=2168
Spatial Resolution:
3 meter
Contact Organization:
not specified
Contact Person(s):
Use Constraints:
Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 3.0 License.
Layer:
Layer Type:
Currently Visible Layer:
All Layer Options:
Layers in this dataset are based on combinations of the following options. You may choose from these options to select a specific layer on the map page.
Description:
Spatial Resolution:
Credits:
Citation:
Purpose:
Methods:
References:
Other Information:
Time Period:
Layer Accuracy:
Attribute Accuracy:
FGDC Standard Metadata XML
Click here to see the full FGDC XML file that was created in Data Basin for this layer.
Original Metadata XML
Click here to see the full XML file that was originally uploaded with this layer.
This dataset is visible to everyone
Dataset Type:
External Map Service (ArcGIS)
Tags:
coast, vegetation, marsh, sea level rise, salt, sharp, tidal, hurricane sandy
Included in 2 Public Galleries
http://d25ripjvlq5c77.cloudfront.net/TidalMarshVegClass.zip

About the Uploader

Northeast
with Science Applications, Northeast

Administration account for the Northeast Conservation Planning Atlas.