gov.noaa.nmfs.inport:64347 eng UTF8 dataset GIS Files Office of Response and Restoration resourceProvider Office of Response and Restoration 1305 East-West Highway Silver Spring MD 20910 https://response.restoration.noaa.gov/ WWW:LINK-1.0-http--link ORR Home Page Website listed for Office of Response and Restoration information pointOfContact 2026-03-04T19:17:18 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::26916 Fall 2011 SAV Classification 2011-10-24 creation 2013-05-10 publication NOAA/NMFS/EDM 64347 https://www.fisheries.noaa.gov/inport/item/64347 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information NewFields rspell@newfields.com https://www.newfields.com/ WWW:LINK-1.0-http--link New Fields Website listed for NewFields information originator https://erma.noaa.gov/gulfofmexico/erma.html#/layers=1+27322&x=-88.68313&y=30.25426&z=12.7&panel=layer WWW:LINK-1.0-http--link Visual representation of GIS data Online Resource download mapDigital The sub-aquatic vegitation map for was produced for the SAV Technical Working Group under a cooperative workplan with BP. The SAV map was derived from 0.3 meter resolution visible and near-infrared imagery collected by Aerometric. The imagery was segmented into homogeneous image objects following an object-based image analysis (OBIA) approach. The image objects were subsequently classified using Classification and Regression Tree (CART) statistical analysis. Manual edits based on air photo interpretation were performed to correct obvious errors and refine the map. A draft map was reviewed by USGS personnel and final edits made based on their comments. The polygons were dissolved based on the class assignments and a minimum mapping unit of 4 square meters was enforced. This dataset was created to provide a comprehensive assessment of the distribution and extent of submerged aquatic vegetation (SAV) off-shore of Petit Bois, Horn Islands, and Chandeleur Islands after the Deep Water Horizon oil spill. The Petit Bois, Horn Islands, & Chandeleur Islands SAV Map was produced by NewFields for the SAV Technical Working Group under a cooperative workplan with BP. Oversight and review was provided by USGS. completed Office of Response and Restoration 1305 East-West Highway Silver Spring MD 20910 https://response.restoration.noaa.gov/ WWW:LINK-1.0-http--link ORR Home Page Website listed for Office of Response and Restoration information pointOfContact Office of Response and Restoration 1305 East-West Highway Silver Spring MD 20910 https://response.restoration.noaa.gov/ WWW:LINK-1.0-http--link ORR Home Page Website listed for Office of Response and Restoration information custodian unknown DOC/NOAA/NOS/ORR > Office of Response and Restoration, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 17.0 EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > OIL SPILLS theme Global Change Master Directory (GCMD) Science Keywords 17.0 EARTH SCIENCE SERVICES > HAZARDS MANAGEMENT > HAZARDS MITIGATION service Global Change Master Directory (GCMD) Service Keywords 17.0 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA place Global Change Master Directory (GCMD) Location Keywords 20.8 DWH Deepwater Horizon MC252 SAV Seagrass Submerged Aquatic Vegetation theme Chandeleur Islands Gulf of Mexico Horn Island Petit Bois Island place DOC/NOAA/NOS/ORR > Office of Response and Restoration, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Deepwater Horizon project InPort otherRestrictions Cite As: Office of Response and Restoration, [Date of Access]: Fall 2011 SAV Classification [Data Date Range], https://www.fisheries.noaa.gov/inport/item/64347. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: These data may be provisional and restricted to Trustees within a Natural Resource Damage Assessment. otherRestrictions Use Constraints: The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions Distribution Liability: While NOAA makes every effort to ensure that its databases are error-free, errors do occur. We ask that you notify us immediately of any errors that you discover in our data. We will make every effort to correct them. With respect to documents available from this server, neither the United States Government nor any of its employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose; nor assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed; nor represents that its use would not infringe privately owned rights. restricted NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 64347 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/orr/dmp/pdf/64347.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference grid vector textTable eng; US oceans The shallow waters off the northern shore of Petit Bois Island, Horn Island, and Chandeleur Islands. -88.88011 -88.415939 29.7745 30.257241 | Currentness: Ground Condition 2011-10-24 false eng false Fields in the Feature Class Attribute Table: OBJECTID = Internal feature number Shape = Feature geometry (ie polygon) ClsFnlQC_AreaSwitch = Class value, where 1 = SAV Shape_Length = Length of feature in meters Shape_Area = Area of feature in square meters SAVCls = Final Class value, where 1 = SAV Zip Zip Office of Response and Restoration 1305 East-West Highway Silver Spring MD 20910 https://response.restoration.noaa.gov/ WWW:LINK-1.0-http--link ORR Home Page Website listed for Office of Response and Restoration information distributor https://erma.noaa.gov/gulfofamerica/erma.html WWW:LINK-1.0-http--link https://erma.noaa.gov/gulfofamerica/erma.html Shapefile download dataset Accuracy While NOAA makes every effort to ensure that its databases are error-free, errors do occur. We ask that you notify us immediately of any errors that you discover in our data. Horizontal Positional Accuracy Horizontal positional accuracy is based on the accuracy of the aerial imagery provided by Aerometric. The imagery collected and orthocorrected by Aerometric met the ASPRS Class 2, 1:24,000 scale accuracy standards which limit the RMS in X or Y to 4 ft. Mismatches between adjacent images averaged less than 3 pixels and did not exceed 6 pixels. Completeness Report The SAV mapping was restricted to the leeward side of the islands. No mapping was performed on the Gulf side of the islands where wave energy is generally too strong for SAV to prosper. Conceptual Consistency The data attribute fields were checked for bad values and consistency of values. The Spatial Data Branch publishes this data on behalf of the originator. Data visually represented in ERMA are aimed to guide responders, decision makers, and users in making informed steps of analysis and action. Data collected in support of the NRDA were collected and managed in the DIVER platform, an environmental data warehouse developed and maintained by the National Oceanic and Atmospheric Administration (NOAA) Office of Response and Restoration (ORR) Assessment and Restoration Division (ARD). Office of Response and Restoration processor NOAA 2013-05-10 publication NOAA/NOS/ORR/ARD/SDB - Assessment and Restoration Division/Spatial Data Branch originator otherRestrictions otherRestrictions Access Constraints: These metadata may be provisional and restricted to Trustees within a Natural Resource Damage Assessment. | Use Constraints: These metadata may be provisional and restricted to Trustees within a Natural Resource Damage Assessment.