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Short Citation:
Office of Response and Restoration, 2022: Fall 2010 SAV Classification, https://www.fisheries.noaa.gov/inport/item/64351.

Item Identification

Title: Fall 2010 SAV Classification
Status: Completed
Creation Date: 2010-10-08
Revision Date: Unknown
Publication Date: 2012-12-11
Abstract:

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.

Purpose:

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.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Data Center Keywords
DOC/NOAA/NOS/ORR > Office of Response and Restoration, National Ocean Service, NOAA, U.S. Department of Commerce
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > OIL SPILLS
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > HAZARDS MANAGEMENT > HAZARDS MITIGATION
UNCONTROLLED
None Deepwater Horizon
None DWH
None MC252
None SAV
None Seagrass
None Submerged Aquatic Vegetation

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Chandeleur Islands
None Gulf of Mexico
None Horn Island
None Petit Bois Island

Physical Location

Organization: Office of Response and Restoration
City: Silver Spring
State/Province: MD
Country: US

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: GIS Files
Maintenance Frequency: Unknown
Data Presentation Form: Map (digital)
Entity Attribute Overview:

Attribute information can be found in the feature class attribute table.

Entity Attribute Detail Citation:

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

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.

Data Set Credit: 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.

Support Roles

Data Steward

CC ID: 1053957
Date Effective From: 2010
Date Effective To:
Contact (Organization): Office of Response and Restoration (ORR)
Address: 1305 East-West Highway
Silver Spring, MD 20910
URL: http://response.restoration.noaa.gov/

Distributor

CC ID: 1053958
Date Effective From: 2010
Date Effective To:
Contact (Organization): Office of Response and Restoration (ORR)
Address: 1305 East-West Highway
Silver Spring, MD 20910
URL: http://response.restoration.noaa.gov/

Metadata Contact

CC ID: 1053959
Date Effective From: 2010
Date Effective To:
Contact (Organization): Office of Response and Restoration (ORR)
Address: 1305 East-West Highway
Silver Spring, MD 20910
URL: http://response.restoration.noaa.gov/

Originator

CC ID: 1055464
Date Effective From: 2010
Date Effective To:
Contact (Organization): NewFields
Email Address: rspell@newfields.com
URL: New Fields

Point of Contact

CC ID: 1053960
Date Effective From: 2010
Date Effective To:
Contact (Organization): Office of Response and Restoration (ORR)
Address: 1305 East-West Highway
Silver Spring, MD 20910
URL: http://response.restoration.noaa.gov/

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Description:

The shallow waters off the northern shore of Petit Bois Island, Horn Island, and Chandeleur Islands.

Extent Group 1 / Geographic Area 1

CC ID: 1053970
W° Bound: -88.88011
E° Bound: -88.415939
N° Bound: 30.257241
S° Bound: 29.7745

Extent Group 1 / Time Frame 1

CC ID: 1053969
Time Frame Type: Discrete
Start: 2010-10-08

Spatial Information

Spatial Representation

Representations Used

Grid: Yes
Vector: Yes
Text / Table: Yes

Reference Systems

Reference System 1

CC ID: 1053965

Coordinate Reference System

CRS Type: Projected
EPSG Code: EPSG:26916
EPSG Name: NAD83 / UTM zone 16N
See Full Coordinate Reference System Information

Access Information

Security Class: Restricted
Data Access Constraints:

These data may be provisional and restricted to Trustees within a Natural Resource Damage Assessment.

Data Use Constraints:

The user is responsible for the results of any application of this data for other than its intended purpose.

Metadata Access Constraints:

These metadata may be provisional and restricted to Trustees within a Natural Resource Damage Assessment.

Metadata Use Constraints:

These metadata may be provisional and restricted to Trustees within a Natural Resource Damage Assessment.

Distribution Information

Distribution 1

CC ID: 1053961
Start Date: 2010
End Date: Present
Download URL: https://erma.noaa.gov/gulfofmexico/erma.html
Distributor: Office of Response and Restoration (ORR) (2010 - Present)
Description:

Shapefile

File Type: Zip
Compression: Zip
Review Status: Not Chked

URLs

URL 1

CC ID: 1053962
URL: https://erma.noaa.gov/gulfofmexico/erma.html#/layers=1+27322&x=-88.68313&y=30.25426&z=12.7&panel=layer
Name: Visual representation of GIS data
URL Type:
Online Resource
File Resource Format: Web

Data Quality

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.

Lineage

Lineage Statement:

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.

Sources

NOAA

CC ID: 1053966
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA/NOS/ORR/ARD/SDB - Assessment and Restoration Division/Spatial Data Branch
Publish Date: 2012-12-11

Process Steps

Process Step 1

CC ID: 1053967
Description:

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).

Process Contact: Office of Response and Restoration (ORR)
Source: NOAA

Acquisition Information

Instruments

Instrument Unavailable Reason: Not Applicable

Platforms

Platform Unavailable Reason: Not Applicable

Catalog Details

Catalog Item ID: 64351
GUID: gov.noaa.nmfs.inport:64351
Metadata Record Created By: Adam Rotert
Metadata Record Created: 2021-03-10 05:20+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2021-03-18
Owner Org: ORR
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-03-18
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-03-18