Cat Island Miss. bathymetry collected by the USGS in 2010

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Noreen A. Buster
Originator: William R. Pfeiffer
Originator: Jennifer L. Miselis
Originator: Jack L. Kindinger
Originator: Dana S. Wiese
Originator: U.S. Geological Survey
Publication_Date: 20110131
Title: Cat Island Miss. bathymetry collected by the USGS in 2010
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: USGS Data Series Publication
Issue_Identification: DS739
Online_Linkage: http://pubs.usgs.gov/ds/739
Online_Linkage: http://pubs.usgs.gov/ds/739/Data_downloads_Cat.html
Description:
Abstract:
In September and October of 2010, the U.S. Geological Survey (USGS), in cooperation with the Army Corps of Engineers (USACE), conducted geophysical surveys around Cat Island, Miss. to collect bathymetry, acoustical backscatter, and seismic reflection data (seismic-reflection data have been published separately, Forde and others, 2012). The geophysical data along with sediment vibracore data (yet to be published) will be integrated to analyze and produce a report describing the geomorphology and geologic evolution of Cat Island. Interferometric swath bathymetry, and acoustical backscatter data were collected aboard the RV G.K. Gilbert during the first cruise which took place September 7-15, 2010. Single-beam bathymetry was collected in very shallow water around the island aboard the RV Streeterville from September 28 through October 2, 2010 to bridge the gap between the landward limit of the previous cruise and the shoreline. The survey area extended from the nearshore to approximately 5 kilometers (km) offshore to the north, south, and west, and approximately 2 km to the east. This report archives bathymetry and acoustical backscatter data and provides information and mapping products essential for completion of the project goals. In order to comprehend seafloor surface lithology; acoustic backscatter mosaics, such as the data herein, are used as an aid in determining seafloor material types and extents. The file containing the backscatter data is a 1m GeoTIFF raster data set.
Purpose:
These geophysical surveys will provide the data necessary for scientists to define, interpret, and provide acoustic backscatter data for interpretation of sea floor substrate and habitat. Additionally they will aid scientists in proposing theories on future geomorphological changes of the islands with respect to climate change, storm impact, and sea-level rise. Furthermore, these data will provide information for barrier island restoration, anthropogenic effects, and sediment distribution. The dataset herein is a complete side-scan sonar backscatter image for the study area offshore of the above-mentioned area. For more information refer to http://ngom.usgs.gov/gomsc/mscip/index.html.
Supplemental_Information:
The U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center assigns a unique identifier to each cruise or field activity. For example, 10BIM04 tells us the data were collected in 2010 (10) for the Barrier Island Monitoring (BIM) study and the data were collected during the fourth (04) field activity for that project in that calendar year. Refer to <http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html> for a detailed description of the method used to assign the field activity ID. Data were collected using the USGS research vessel R/V Gilbert. Side-scan sonar and interferometric swath bathymetry data were collected simultaneously along the tracklines during the geophysical operations. The side-scan sonar tow fish was flown off the port quarter, astern of the vessel. The interferometric swath transducer was pole-mounted off the starboard quarter of the research vessel. Navigation was acquired with a Coda Octopus F190 Precision Attitude and Positioning System and differentially corrected with OmniSTAR HP DGPS constellation. See the digital FACS equipment log for details about the acquisition equipment used. Both raw datasets were stored digitally and processed using SonarPro and CARIS HIPS and SIPS software version 7.1 in the USGS St. Petersburg office. For more information on processing, refer to the Equipment and Processing page. Chirp seismic reflectivity data were also collected during this survey and are archived separately.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100907
Ending_Date: 20100915
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.485858
East_Bounding_Coordinate: -88.171679
North_Bounding_Coordinate: 30.254499
South_Bounding_Coordinate: 30.101438
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:64f1072c-69a8-4233-a7f3-051dc36344a9
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and coastal
Theme_Keyword: geoscientific information
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: side scan
Theme_Keyword: swath
Theme_Keyword: backscatter
Theme_Keyword: sonar
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: USGS
Theme_Keyword: CMGP
Theme_Keyword: coastal and marine geology
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: SPCMSC
Theme_Keyword: acoustic
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: bathymetry and elevation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: interferometric sonar
Theme_Keyword: bathymetry measurement
Theme_Keyword: bathymetry
Theme_Keyword: marine geophysics
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: United States of America (USA)
Place_Keyword: Cat Island Pass
Place_Keyword: Mississippi
Place_Keyword: Gulf Islands National Seashore
Place_Keyword: Cat Island
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sediment
Stratum_Keyword: geology
Stratum_Keyword: barrier island
Stratum_Keyword: sea floor
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2010
Temporal_Keyword: September
Access_Constraints: none
Use_Constraints:
These data should not be used for navigational purposes. The U.S. Geological Survey requests that it be referenced as the originator of this data set in any future products or research derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jack Kindinger
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: United States
Contact_Voice_Telephone: (727) 803-8747
Contact_Electronic_Mail_Address: jkindinger@usgs.gov
Data_Set_Credit: U.S. Geological Survey
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.0.4.4000
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy of the data is determined during data collection. This dataset is from a single cruise and therefore internally consistent. Methods are employed to maintain data collection consistency aboard various platforms. During mobilization, each piece of equipment (swath and sonar) is isolated to obtain internal and external offset measurements with respect to the survey platform. All the critical measurements are recorded manually and digitally and entered into their respective programs for calibration. Once calibration status is considered acceptable, then survey operations commence. Each system has a dedicated computer, and efforts are made to utilize the same equipment and software versions. However, upgrades and changes occur and require additional setup, measurements, and notation. The swath transducer sonar head was pole-mounted on the starboard side of the vessel. Offsets between the sonar head and the Differential Global Positioning System (DGPS) antennas were measured and entered into the F190 internal setup program. DGPS is normally provided through the OmniSTAR High Performance wide-area GPS service unless otherwise noted.
Logical_Consistency_Report:
This dataset was completed on a single and continuous cruise over 4 days from the same research vessel platform.
Completeness_Report:
There may in some cases be data missing and inconsistent with reported tracklines. This is directly due to the exclusion of poor data, instrument failures, or maybe for the sake of consistent spatial resolution.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The ship was navigated using the Coda Octopus F190 Precision Attitude and Positioning System. The software used is the F180 Series version 4.0.5. Two antennas received the integrated OmniSTAR High Performance DGPS correction. The software used is F180 Series version 4.0.5. The horizontal accuracy of bathymetric data is at the limit of OmniSTAR, a wide-area differential GPS service, which is within 20 cm. Unless noted, all DGPS data are referenced to WGS84. The swath transducer sonar head was pole-mounted off the starboard quarter of the vessel. Offsets between the sonar head and the DGPS antennas were measured and entered into the F190 internal calibration and setup program.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 20
Horizontal_Positional_Accuracy_Explanation: centimeters
Lineage:
Process_Step:
Process_Description:
Side-scan data acquisition was at sea, collected with a Klein 3900 dual-frequency towfish flown port-quarter of the RV Gilbert. Data were acquired using SonarPro v.11.3 during a cruise in September 2010. Data were collected along planned tracklines approximately 150 meters apart at an average vessel speed of 4 knots. Navigation was calculated by means of DGPS satellite constellation position feed. Navigation data acquisition was at sea, collected with a real-time DGPS system aboard the RV Gilbert. Navigation data were collected in a hydrographic survey software application along planned tracklines approximately 150 meters apart at an average vessel speed of 4 knots.
Process_Date: 20100601
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Jacobs Technology
Contact_Person: William R. Pfeiffer
Contact_Position: Data Modeler
Contact_Address:
Address_Type: mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Contact_Voice_Telephone: (727) 803-8747
Contact_Electronic_Mail_Address: wpfeiffer@usgs.gov
Process_Step:
Process_Description:
Within CARIS SIPS v7.0 data were converted from .xtf format to digitize altitude, filter speckle noise, and apply AVG and TVG corrections. The corrected lines were then used to create Georeferenced Backscatter Rasters (GeoBARs), which were fully blended into a 1 meter/pixel resolution composite mosaic. A complete GeoTIFF was then exported for use in a GIS.
Process_Date: 20100601
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Jacobs Technology
Contact_Person: William R. Pfeiffer
Contact_Position: Data Modeler
Contact_Address:
Address_Type: mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Contact_Voice_Telephone: (727) 803-8747
Contact_Electronic_Mail_Address: wpfeiffer@usgs.gov
Process_Step:
Process_Description:
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
Process_Date: 20170214
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt
Contact_Position: Contractor -- Information Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 30085
Column_Count: 31919
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -87.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.5
Ordinate_Resolution: 0.5
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D WGS 1984
Ellipsoid_Name: WGS 1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Image pixel values contain acoustic reflectivity values normalized to an 8-bit digital number range (0-255). Lower pixel intensity values correlate with lower signal loss in decibels. The background color is depicted at pixel value 255.
Entity_and_Attribute_Detail_Citation: GeoTIFF imagery is three bands with pixel values 0 to 255.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: U.S. Geological Survey Information Services
Contact_Address:
Address_Type: mailing
Address: Box 25286, Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225-0046
Country: U.S.
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Electronic_Mail_Address: infoservices@usgs.gov
Distribution_Liability:
This DVD publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Transfer_Size: 294
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/ds/739/
Fees: None
Ordering_Instructions:
Publications are available from U.S. Geological Survey Information Services, Box 25286, Federal Center, Denver, CO 80225-0046 (telephone: 1-888-ASK-USGS, e-mail: infoservices@usgs.gov).
Metadata_Reference_Information:
Metadata_Date: 20210922
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Jacobs Technology
Contact_Person: William R. Pfeiffer
Contact_Position: Data Modeler
Contact_Address:
Address_Type: mailing and physical
Address: 600 Fourth St. South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Contact_Voice_Telephone: (727) 803-8747
Contact_Electronic_Mail_Address: wpfeiffer@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None
This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/ds-739metadata_sidescangrid.html>
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