Coastal Bend Texas Benthic Habitat Mapping Reprocessed DOQQ Aerial Imagery
Dataset Identification:
Resource Abstract:
In 2006 and 2007 the NOAA Office for Coastal Management purchased services to reprocess 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 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.
Citation
Title Coastal Bend Texas Benthic Habitat Mapping Reprocessed DOQQ Aerial Imagery
publication Date
2007-12-19
presentationForm
imageDigital
cited responsible party
-
publisher
organisation Name
NOAA's Ocean Service, Office for Coastal Management (OCM)
Contact information
Address
, Charleston, SC
cited responsible party
-
originator
organisation Name
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office
for Coastal Management (OCM)
other Citation Details
Cinergi keyword enhanced at Fri Nov 11 23:21:59 UTC 2016
purpose:
These data have been created as a result of the need for having geospatial data immediately available and easily accessible
in order to enhance the capability of the NOAA Office for Coastal Management (OCM)
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
Users must assume responsibility to determine the usability of these data.
The bounding coordinates provided within the Spatial Domain section represent a rectangle covering the total area in which
the project is located. The actual project boundary located within this area is comprised of 6 areas along the coast of the
state of Texas. The geographic Corpus Christi Bay - ~356 sq mi , Redfish Bay - ~62 sq mi, Aransas Bay - ~285 sq mi, and Copano
Bay - ~158 sq mi, Upper Laguna Madre - ~313 sq mi, and Baffin Bay - ~232 sq mi. A total of 762 orthos (381 natural color and
381color infrared) were produced to cover this area. Aerial imagery was collected in panchromatic, Red, Green, Blue and Near
Infrared which yielded a natural color and false color infrared version of the completed digital orthophotography.The ADS40
digital camera system used for this imagery incorporates the latest in sensor technology, optics, electronics, data transfer,
and storage. The ADS40 imagery is generated from seven parallel sensor lines in the focal plane of a single lens system, three
panchromatic (forward, nadir, backward), red, green, and blue lines placed next to each other, and one infrared. Each panchromatic
channel consists of two lines, each with 12,000 pixels, staggered (shifted with respect to each other) by 0.5 pixels. The
viewing angles and characteristics of the sensor are as follows - - Focal length 62.5mm - Pixel size 6.5mm - PAN 2 arrays
12,000 pixels each - R,G,B and NIR,R,G 12,000 pixels - Backward to nadir stereo angle -14.1 degrees - Near infrared to nadir
stereo angle -2.05 degrees - Dynamic Range of CCD - 12-bits for all arrays. For this dataset, the natural color and color
infrared orthoimages were reprocessed at 0.50-meter pixel resolution. Each digital orthorectified quarter quad provides imagery
for a nominal 3.75 by 3.75 minute area corresponding to the USGS quarter quad boundaries. An orthoimage is remotely sensed
image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically
removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map.
Credits:
NOAA Office for Coastal Management
point of contact
-
pointOfContact
individual Name Harold Rempel
organisation Name
Fugro EarthData, Inc.
position Name Director of Program Management
Contact information
Telephone
Voice 301-948-8550
Fax 301-963-2064
Address
7320 Executive Way, Frederick, MD, 21704
Country USA
source description
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
representative resolution scale:
Scale denominator: 1000
source citation
Title REPORT OF GPS SURVEY TEXAS COASTAL AREA MAPPING
publication Date
2005-11-09
presentationForm
modelDigital
cited responsible party
-
originator
organisation Name
Terrasurv Inc.
Resource extent
Temporal Extent
2005-10-17
2005-10-19
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
Accuracy assessment determined by evaluating the horizontal accuracy obtained during the aerotriangulation process for each
lift for the reprocessed imagery.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
None
Completeness Commission
evaluation Method Description
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.
Completeness Omission
evaluation Method Description
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.
ConceptualConsistency
measure Description
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.
notes: This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
notes: Last Metadata Review Date: 2009-12-03
Metadata contact
-
pointOfContact
organisation Name
NOAA Office for Coastal Management
Contact information
Telephone
Voice 843-740-1202
Address
2234 South Hobson Avenue, Charleston, SC, 29405-2413