tx_coastal_bend_phaseIIa_patchy_srv_p-meta_0070784 eng; USA utf8 dataset Metadata Specialist NOAA Coastal Services Center Metadata Specialist 843-740-1210 843-740-1224 2234 S Hobson Ave. Charleston SC 29405 USA csc@csc.noaa.gov 8:00 am to 5:00 pm EST pointOfContact 2025-03-16 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) North American Datum 1983 NAD83 2007-01-19 revision https://epsg.org/crs_4269/NAD83.html NAD83 Link to Geographic Markup Language (GML) description of reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4269 Coastal Bend Texas Benthic Habitat Mapping Patchy Shapefile Map - Lower Laguna Madre (NODC Accession 0070784) 2008-09-17 publication Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) originator NOAA’s Ocean Service, Coastal Services Center (CSC) Charleston SC publisher DIGITAL VECTOR DATA The NOAA Coastal Services Center (CSC) requested the creation of benthic habitat data along the southern Texas coast to support the Texas Seagrass Monitoring Program. The benthic habitat map was created from 1m ADS40 digital airborne imagery collected along the Texas coast during 2004 for the National Agriculture Imagery Program. The original raw images were reprocessed into 3-band true color and color-IR orthos. The benthic habitat map was created from resampled 2m mosaicked orthos. Habitat classification was performed through segmentation of the imagery using Definiens Professional and habitat labeling through Classification and Regression Tree (CART) Analysis. The minimum mapping unit is 100m2. This map covers Lower Laguna Madre, which is approximately 800mi2. The NOAA CSC worked cooperatively with the Texas Parks and Wildlife Department (TPWD) and the Texas A&M University, Corpus Christi, Center for Coastal Studies to have benthic habitat data, primarily submerged aquatic vegetation, created for eight bay systems along the southern Texas coast. This project, the phase 2 project, consists of the two remaining bay systems, Lower Laguna Madre and San Antonio/Espiritu Santo Bays. This benthic habitat data will support the recently adopted Texas Seagrass Monitoring Program which calls for the monitoring of seagrass beds along the Texas coast for assessment of status and trends. NOAA Coastal Services Center completed Becky Jordan Fugro EarthData, Inc. Project Manager 301-948-8550 301-963-2064 7320 Executive Way Frederick MD 21704 USA bjordan@earthdata.com 9:00am - 5:00pm pointOfContact asNeeded CoRIS_Metadata theme NCEI Geoportal Filter Benthic habitat Submerged aquatic vegetation Seagrass Texas Seagrass Monitoring Program Habitat classification ImageryBaseMapsEarthCover Environmental Monitoring theme Digital Map EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat theme CoRIS Theme Thesaurus Geographic Information > Habitats theme CoRIS Discovery Thesaurus Texas TX US Gulf of Mexico place Geographic Names Information System OCEAN BASIN > Atlantic Ocean > Gulf of America > Texas COUNTRY/TERRITORY > United States of America > Texas OCEAN BASIN > Atlantic Ocean > Gulf of Mexico place CoRIS Place Thesaurus Gulf of Mexico Gulf of America place CoRIS Region Users must assume responsibility to determine the usability of these data. otherRestrictions Use Constraints: None otherRestrictions Access Constraints: None eng; USA environment Native Dataset Environment: Windows NT/2000 Systems, Definiens Professional, See5, ArcGIS, Erdas Imagine -097.516227 -097.148929 25.996454 26.955027 2008-09-17 The geographic extent of the project area is ~800mi2. Benthic habitat data was generated from 2004 NAIP imagery for all estuarine lands data was required for the marine side of the barrier beaches. Entity and Attribute Overview: None Entity and Attribute Detail Citation: Not applicable Clearinghouse Manager NOAA Coastal Services Center Clearinghouse Manager 843-740-1210 843-740-1224 2234 South Hobson Avenue Charleston SC 29405-2413 USA clearinghouse@csc.noaa.gov Monday-Friday, 8-5 EST distributor dataset Horizontal Positional Accuracy Report Accuracy assessment determined by evaluating the horizontal accuracy obtained during the aerotriangulation process for each lift for the reprocessed imagery and by field verification for the completed map product. Vertical Positional Accuracy Report None Compliance with the accuracy standard for the reprocessed imagery was ensured by the placement of photo identifiable ground control points and the collection of airborne GPS data. Compliance with the accuracy standard for the final map product was ensured by field checks and manual editing. For the reprocessed imagery, compliance with the accuracy standard was ensured by the placement of photo identifiable ground control points. A total of 18 photo identifiable ground survey points was used for the calculations. An RMS value was calculated based on the imagery reprocessed for this project by comparing the aerotriangulated X and Y coordinates. This value represents an estimate of the accuracy of the horizontal coordinate measurements in the tile expressed in meters. 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. The original 1m DOQQs for the project area were resampled to 2m and mosaicked. For habitat classification, the mosaicked imagery was divided into two processing areas for Lower Laguna Madre, resulting in a total of four 2m mosaicked orthos: one set of two mosaics for true color and one set of two mosaics for color-IR. Lower Laguna Madre was divided into two processing areas. Image segmentation was performed in Definiens Professional using the blue, green, red, and near-infrared bands for each of the processing areas. The classification of the habitat segments (as ESRI polygon shapefiles) was performed using CART analysis. The habitat maps for each area was refined with the aid of field data collected during July, August, and October of 2007. The two processing area shapefiles were edgematched to one another and clipped to the final project area boundary. Adjacent areas do not overlap, and each polygon, within and across all processing areas and bay systems, has a unique polygon identification number. Each 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 <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 NOAA independent validation review. Polygons in the habitat map labeled as Patchy SRV (seagrass) were used to mask the 2m image mosaics for further classification of these areas. Pixels in the imagery falling within the Patchy SRV polygons were classified into a "percent seagrass" cover category. For each Patchy SRV polygon from the habitat map, the average percent seagrass coverage was calculated based on the coverage values of each pixel within the polygon. Accuracy assessment was performed on seven classes with Patchy SRV and Continuous SRV being combined into a single 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 76 unit connected to a Panasonic Toughbook laptop displaying the project imagery and polygons in ArcMap v9.1 or using the GPS unit alone. Habitat classification was estimated as accurately as possible using different methods or combination of methods which included above water observation, snorkeling, wading, and underwater video. This data was 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 trip 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 Statistics tool in ArcToolbox was used to collect accuracy information from the habitat map using the accuracy polygons. The "mean" statistic was used to determine the map value for each accuracy polygon. 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 project final report entitled Coastal Bend of Texas Benthic Habitat Mapping Phase 2 Final Report. 2008-09-17T00:00:00 Becky Jordan Fugro EarthData, Inc. Project Manager 301-948-8550 301-963-2064 7320 Executive Way Frederick MD 21704 USA bjordan@earthdata.com 9:00am - 5:00pm processor Source Contribution: TerraSurv, Inc. of Pittsburgh, PA was contracted by EarthData International of Frederick, MD to perform a geodetic control survey in support of mapping an area along the southeasterly coast of Texas between Port Lavaca and Brownsville. Thirty-eight photo identifiable locations were surveyed to provide ground control and quality assurance checks for the mapping. Twenty of the stations were used for mapping control and eighteen of the stations were used for quality checks. The horizontal datum was the North American Datum of 1983, CORS adjustment (NAD 1983 CORS). The vertical datum was the North American Vertical Datum of 1988 (NAVD 1988). Source Type: paper 1000 REPORT OF GPS SURVEY TEXAS COASTAL AREA MAPPING 2005-11-09 publication Terrasurv Inc. originator modelDigital 2005-10-17 2005-10-19 Source Contribution: The digital orthophotography was developed from imagery acquired as part of the 2004 overflight of the State of Texas developed for the USDA National Agricultural Imagery Program (NAIP). In order to achieve a horizontal accuracy of 5 meters, CE90 it is necessary to reprocess the imagery incorporating new GPS field control. It should be noted that the imagery was not tide coordinated so tidal variation may exist between sorties. The imagery was acquired between November 3, 2004 and November 7, 2004. Source Type: digital 900 2004 ADS40 Digital NAIP Imagery 2004-11-11 publication Northwest Geomatics originator imageDigital 2004-11-03 2004-11-07 annually This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2016-01-11 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2025-03-24T19:23:02.684Z Metadata Specialist NOAA Coastal Services Center Metadata Specialist 843-740-1210 843-740-1224 2234 S Hobson Ave. Charleston SC 29405 USA csc@csc.noaa.gov 8:00 am to 5:00 pm EST pointOfContact