The Ocean Archive System searches our original datasets as they were submitted to us, not individual points or profiles. If you want to search and retrieve ocean profiles in a common format, or objectively analyzed fields, your better option may be to use one of our project applications. See: Access Data

OAS accession Detail for 0105604
<< previous |revision: 9
accessions_id: 0105604 | archive
Title: NOAA Integrated Ocean and Coastal Mapping (IOCM) true color (RGB) orthorectified mosaic image tiles, coastal Texas, 2007 - 2011 (NCEI Accession 0105604)
Abstract: This data set contains true color ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative. The source imagery for San Antonio Bay was acquired 20071205; imagery for Brownsville, Colorado River, Corpus Christi, the Intracoastal Waterway, and Matagorda regions was collected from 20110302 - 20110311. The images were acquired with an Applanix Digital Sensor System (DSS). The original images were acquired at a higher resolution than the final ortho-rectified mosaic. Ortho-rectified mosaic tiles are an ancillary product of NOAA's Coastal Mapping Program (CMP), created through a wider Integrated Ocean and Coastal Mapping initiative to increase support for multiple uses of the data.

Data are in .tif format with associated .his (HIStory), browse graphic (.jpg), and metadata (.txt) files. The metadata utilize the Federal Geographic Data Committee (FGDC) format. Data from the San Antonio Bay region also include GIS files (.shp and project associated files.) The ground sample distance (GSD) for each pixel is 0.50 m.

Additional coastal Texas benthic SAV data is archived at NCEI under NCEI Accession Number 0070784.
Date received: 20110803
Start date: 20071205
End date: 20110311
Seanames:
West boundary: -97.4547782404
East boundary: -94.0985705888
North boundary: 29.9452088363
South boundary: 25.977393314
Observation types:
Instrument types:
Datatypes:
Submitter: Hund, Erik
Submitting institution: US DOC; NOAA; NOS; Coastal Services Center
Collecting institutions:
Contributing projects:
Platforms:
Number of observations:
Supplementary information: DATA SHOULD NOT BE USED FOR NAVIGATION. Additional coastal Texas benthic SAV data is archived at the NODC under NODC Accession Number 0070784.

Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. We do request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these photos in a report, publication, or presentation.

Note on Matagorda Bay and the Colorado River: Matagorda Bay is located on the north-central coast of Texas, and navigation through it is served by the deep-draft Matagorda Shp Channel (MSC) as one of eight federally maintained inlets on the Texas Gulf of Mexico coast. Matagorda Bay, among the largest of seven major estuarine systems along the coast of Texas (Mathews and Mueller 1987), is located about 80 miles northeast of Corpus Christi and 125 miles southwest of Galveston. The MSC cuts through the Matagorda Peninsula and is composed of deep-draft and shallow-draft navigation channels in Matagorda Bay that connect local ports to the Gulf of Mexico and the Gulf Intracoastal Waterway (GIWW). Major ports are Port OConnor to the west, Port Lavaca and Point Comfort to the northwest in Lavaca Bay, and Port of Palacios on the north-central side of Matagorda Bay. The deep-draft channel of the MSC crosses Matagorda Bay for about 22 miles. The authorized dimensions of the MSC entrance channel through Matagorda Peninsula is 300 ft wide at the bottom, 38 ft deep at the entrance bar, and 36 ft deep through the jetties, referenced to the local Galveston District navigation datum mean low tide (mlt).

Matagorda Bay possesses five entrances that support either commercial or recreational navigation. These are (a) the GIWW, which connects to the locks at the Colorado River on the northeast side; (b) the Colorado River Diversion Channel, which enters on the northeast corner, accessible by very shallow-drafting recreational boats; (c) Port OConner, through which the GIWW traverses on the west side; (d) Pass Cavallo, a natural inlet in the southwest corner of the bay that is accessible by shallow-drafting recreational boats; and (e) the MSC, which is located about 3.4 miles northeast of Pass Cavallo. The GIWW is 125 ft wide across the bottom and 12 ft deep mlt, indicating that the channel cross sections at the ends of the bay are small compared to those of the two gulf inlets of Pass Cavallo and the MSC.

Matagorda Bay has a surface area of approximately 1.01 x 10 to the 10th sq ft, or 360 square miles. The bay receives water from the Colorado River through a diversion channel opened in March 1995 and from the Lavaca River. Although of substantial ecological significance, the freshwater discharge is typically less than 10 percent of the daily tidal exchange; therefore, an increase in bay volume by river flow is of minor importance in the control of the geomorphology of the two gulf entrances. Tidal prisms of Texas bays tend to be relatively large because of the large bay surface areas, despite having modest tidal range. (Kraus, Nicolas C. et al, August 2006, Matagorda Ship Channel, Texas, Jetty Stability Study, Coastal and Hydraulics Laboratory, U.S. Engineer Research and Development Study, Final Report ERDC CHL TR-06-7, Galveston, TX)
Availability date: 20130831
Metadata version: 9
Keydate: 2013-05-02 22:40:19+00
Editdate: 2025-04-17 18:33:39+00