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Maryland Archived Submerged Aquatic Vegetation - SAV 2017 [Maryland]

ArcGIS Online for Maryland · 2017 Full Details

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Title
Maryland Archived Submerged Aquatic Vegetation - SAV 2017 [Maryland]
Description
The 2017 Chesapeake Bay SAV Coverage was mapped from digital multispectral imagery with a 25cm GSD to assess water quality in the Bay. Each area of SAV was interpreted from the rectified imagry 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. This is a MD iMAP hosted service. Find more information on https://imap.maryland.gov . Feature Service Link: https://archive.geodata.md.gov/imap/rest/services/Biota/MD_ArchivedSubmergedAquaticVegetation/FeatureServer/32
Creator
ArcGIS Online for Maryland
Temporal Coverage
2017
Date Issued
2020-01-13
Rights
The Spatial Data, and the information therein, (collectively the "Data") is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct, indirect, incidental, consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
Access Rights
Public
Format
ArcGIS FeatureLayer
Language
English
Date Added
August 10, 2025
Provenance Statement
The metadata for this resource was last retrieved from Maryland iMap on 2025-08-24.

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Cite and Reference

  • Citation
    ArcGIS Online for Maryland (2020). Maryland Archived Submerged Aquatic Vegetation - SAV 2017 [Maryland]. . https://data.imap.maryland.gov/datasets/maryland::maryland-archived-submerged-aquatic-vegetation-sav-2017 (web service)
  • BTAA Geoportal Link

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