Coastal Bend Texas Benthic Habitat - San Antonio Bay (NODC Accession 0070784)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20090213
Title:
Coastal Bend Texas Benthic Habitat - San Antonio Bay (NODC Accession 0070784)
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)
Online_Linkage: <http://accession.nodc.noaa.gov/0070784>
Online_Linkage:
<http://csc.noaa.gov/htdata/Benthic/Benthic_Cover_Data/TX_SanAntonioBay.zip>
Online_Linkage: <http://www.csc.noaa.gov/digitalcoast/data/benthiccover>
Online_Linkage: <http://www.csc.noaa.gov/>
Description:
Abstract:
In 2006 and 2007 the NOAA Coastal Services Center purchased services to process existing digital multi-spectral imagery (ADS-40) and create digital benthic habitat data from this imagery for selected Texas coastal bend bays. The Center worked cooperatively with Fugro-Earthdata, the Texas Parks and Wildlife Department (TPWD) and the Texas A and M University Center for Coastal Studies to develop benthic habitat data, primarily Submerged Aquatic Vegetation(SAV) for several coastal bays. This data will support the state's recently adopted Seagrass Monitoring Program which calls for regional mapping of SAV for status and trends assessment. The Center, Texas A and M, and TPWD have coordinated on the requirements of this project.
Purpose:
These data have been created to support change detection, and to inform coastal management research and decision making.
Supplemental_Information:
The geographic extent of San Antonio and Espiritu Santo Bays is ~370mi2. Benthic habitat data was generated from 2007 orthoimagery collect with an UltraCam digital camera for all estuarine lands below mean high water within the study area. No benthic data was required for the marine side of the barrier beaches.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20090213
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -96.878809
East_Bounding_Coordinate: -96.576873
North_Bounding_Coordinate: 28.526800
South_Bounding_Coordinate: 28.185683
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Geographic Information > Habitats
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Environmental Monitoring
Theme_Keyword: Benthic habitat
Theme_Keyword: Submerged aquatic vegetation
Theme_Keyword: Seagrass
Theme_Keyword: Texas Seagrass Monitoring Program
Theme_Keyword: Habitat classification
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: US
Place_Keyword: Gulf of Mexico
Place_Keyword: Texas
Place_Keyword: TX
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword: OCEAN BASIN > Atlantic Ocean > Gulf of Mexico > Texas
Place_Keyword: COUNTRY/TERRITORY > United States of America > Texas
Place_Keyword: OCEAN BASIN > Atlantic Ocean > Gulf of Mexico
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Fugro EarthData, Inc.
Contact_Person: Becky Jordan
Contact_Position: Project Manager
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: bjordan@earthdata.com
Hours_of_Service: 9:00am - 5:00pm
Data_Set_Credit: NOAA Coastal Services Center
Native_Data_Set_Environment:
Windows NT/2000 Systems, Definiens Professional,See5, ArcGIS, Erdas Imagine

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Horizontal accuracy of the source imagery was verified to exceed the project specification of +/- 5 meters CE95 of position on the ground.Overall final thematic map deterministic accuracy is 90%and overall fuzzy accuracy is 91%, which exceeds the contract standard of 85%. Additionally, 13 of the 14 final individual class producer's and user's deterministic accuracies exceed the contract standard of 80%. The deterministic user's accuracy for emergent marsh is 76%.All of the individual class producer's and user's fuzzy accuracies exceed the contract standard of 80%. Detailed error matrices can be found in the thematic accuracy report.
Logical_Consistency_Report:
Eight photo-identified ground control check points were established for the purpose of assessing the accuracy of the final orthoimagery. These points were randomly distributed over the San Antonio Espiritu Santo Bay area. Two of the control points fell outside the project extent,and one additional point was discarded, as it was not associated with a well-defined feature. The five remaining points were used to calculate the accuracy of the orthoimagery. For the final map product Initial Map accuracy assessment was used as a tool to prioritize areas for further field examination and after field investigation to prioritize those areas where additional modeling or interpretation was needed. Error matrices showing both deterministic and fuzzy accuracies were compiled for the initial map. Based on the results compiled from the assessment, the team visit any classes exhibiting inaccuracy and addressed the classes through modeling, additional analysis or manual editing.
Completeness_Report:
Compliance with the accuracy standard for the imagery was ensured by the placement of photo-identifiable ground control check points. Compliance with the accuracy standard for the final map product was ensured by field checks and manual editing.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sanborn Map Company, Inc
Publication_Date: 20080310
Title: San Antonio Espiritu Santo Bay Digital Orthoimagery
Geospatial_Data_Presentation_Form: map
Type_of_Source_Media: Digital
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20070727
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: Digital Orthoimagery
Source_Contribution:
The orthoimagery was produced by Sanborn Map Company, Inc. for NOAA. The imagery for the San Antonio Espiritu Santo Bay project was acquired on December 5,2007 and the orthoimagery and horizontal analysis was completed on January 28, 2007.
Process_Step:
Process_Description:
The original 1m DOQQs for the project area were resampled to 2m and mosaicked into a single four-band image. Image segmentation was performed using Definiens Professional. The classification of the habitat segments(as ESRI polygon shapefiles) was performed using CART analysis. The habitat map was refined with the aid of field data collected during May and July of 2008. The final habitat shapefile clipped to the final project area boundary. Each polygon has a unique polygon identification number in the attribute table (field"POLY_ID"). The final shapefile was checked for proper topology and to insure that each polygon has a correct habitat label, habitat code, modifier label if present, unique identification number, and an area calculation. Polygons below the 100m2 minimum mapping unit (MMU) were eliminated, though some polygons less than 100m2 were retained if their area changed to below the MMU due to the polygon boundary smoothing process. The habitat data also went through a independent validation review.Accuracy assessment was performed on seven classes with Patchy SRV and Continuous SRV being combined into a single SRV accuracy class. For field data collection, non-random sites in the form of polygons were chosen by analysts with an attempt to sample all available image signatures. These sites were visited in the field and data on each site was collected directly into digital format (ESRI shapefile) using a laptop or onto a paper form that was later entered into digital format.Sites were navigated to primarily using a Garmin GPS 76unit connected to a Panasonic Toughbook laptop displaying the project imagery and polygons in ArcMapv9.1 or using the GPS unit alone. Habitat classification was estimated as accurately as possible using methods or combination of methods which included above water observation, snorkeling, wading, and underwater video.This data were entered into an ESRI shapefile via a digital field form in ArcMap specifically developed for this type of field data collection. More sample polygon sites were collected in-office based on the in-field collected sites in order to meet the 30 sites per class accuracy assessment requirement. For each class, a random selector macro in ArcMap was used to randomly select 30 sites for accuracy assessment. The entire pool of accuracy sites was kept separate from the remaining sites and only used for accuracy assessment during the project. Anonymity of the accuracy sites was maintained throughout the project because it was unnecessary to ever visually review these sites in order to perform the accuracy analysis. More accuracy assessment sites were collected in a later field collection to add to the analysis. These sites were chosen by randomly selecting polygons within specific regions that were pre-determined to be visited. Information for these sites was collected using the same methods for the other sites. Accuracy information was compiled using ArcMap.The zonal stats tool in ArcMap was used to determine the majority map class each accuracy polygon intersected with. An accuracy assessment error matrix was generated using this information by importing it to Microsoft Excel and building the matrix. Both deterministic and fuzzy accuracy assessment were performed. The accuracy analysis and error matrices are presented and discussed in the Final Accuracy Assessment Report.
Source_Used_Citation_Abbreviation: Digital Orthoimagery
Process_Date: 20090203
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Fugro EarthData, Inc.
Contact_Person: Becky Jordan
Contact_Position: Project Manager
Contact_Address:
Address_Type: mailing and physical
Address: 7320 Executive Way
City: Frederick
State_or_Province: MD
Postal_Code: 21704
Country: USA
Contact_Voice_Telephone: 301-948-8550
Contact_Facsimile_Telephone: 301-963-2064
Contact_Electronic_Mail_Address: bjordan@earthdata.com
Hours_of_Service: 9:00am - 5:00pm

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 14
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -099.000000
Latitude_of_Projection_Origin: +00.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000128
Ordinate_Resolution: 0.000128
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000000000000000
Denominator_of_Flattening_Ratio: 298.257222096042310000

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview: None
Entity_and_Attribute_Detail_Citation: Not applicable

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Clearinghouse Manager
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Country: USA
Contact_Voice_Telephone: 843-740-1210
Contact_Facsimile_Telephone: 843-740-1224
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: Monday-Friday, 8-5 EST
Resource_Description: Downloadable Data
Distribution_Liability:
Users must assume responsibility to determine the usability of these data.

Metadata_Reference_Information:
Metadata_Date: 20130905
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Metadata Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 2234 S Hobson Ave.
City: Charleston
State_or_Province: SC
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1210
Contact_Facsimile_Telephone: 843-740-1224
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 8:00 am to 5:00 pm EST
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Online_Linkage:
<http://www.ncddc.noaa.gov/metadataresource/metadata-references/files/ncddcmdprofile_v2.pdf>


CoRIS:
CoRIS_Metadata_Link:
<http://www.coris.noaa.gov/metadata/records/html/tx_sab07-meta_0070784.html>
CoRIS_Tracking_ID: 6800

Generated by mp version 2.9.13 on Thu Dec 25 10:44:13 2014