Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20101001 Title: 10cct02_sw_v2_50m - 50 meter interpolated bathymetric grid of Petit Bois Pass, Mississippi Barrier Islands, March 2010 Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 577 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://pubs.usgs.gov/ds/577/software/arc.zip Larger_Work_Citation: Citation_Information: Originator: William R. Pfeiffer Originator: James G. Flocks Originator: Nancy T. DeWitt Originator: Arnell S. Forde Originator: Kyle Kelso Originator: Phillip R. Thompson Originator: Dana S. Wiese Publication_Date: 20101001 Title: Archive of Side Scan Sonar and Swath Bathymetry Data Collected During USGS Cruise 10CCT02 Offshore of Petit Bois Island Including Petit Bois Pass, Gulf Islands National Seashore, Mississippi, March 2010 Edition: 1.0 Geospatial_Data_Presentation_Form: multimedia presentation Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 577 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://pubs.usgs.gov/ds/577 Description: Abstract: In March of 2010, the U.S. Geological Survey (USGS) conducted geophysical surveys offshore of Petit Bois Island, Mississippi and Dauphin Island, Alabama. These efforts were part of the U.S. Geological Survey Gulf of Mexico Science Coordination partnership with the U.S. Army Corps of Engineers (USACE) to assist the Mississippi Coastal Improvements Program (MsCIP) and the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazards Susceptibility Project, by mapping the shallow geologic stratigraphic framework of the Mississippi Barrier Island Complex. Purpose: These geophysical surveys will provide the data necessary for scientists to define, interpret, and provide baseline bathymetry and seafloor habitat for this area to aid scientists in predicting 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, particularly in Camille Cut, and protection for the historical Fort Massachusetts on Ship Island, Mississippi. The dataset herein is a complete interpolated bathymetric grid for the study area offshore of the above-mentioned area. For more information refer to; . 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, 10CCT02 tells us the data were collected in 2010 (10) for the Coastal Change and Transport (CCT) study and the data were collected during the second (02) field activity for that project in that calendar year. Refer to for a detailed description of the method used to assign the field activity ID. Data were collected using the research vessel R/V Tommy Munro. Side scan sonar and interferometric swath bathymetry data were collected simultaneously along the tracklines. The side scan sonar towfish 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 GPS constellation. See the digital FACS equipment log for details about the acquisition equipment used. Both raw datasets were stored digitally and processed using SEA Ltd. Swath Processor version 3.07 and CARIS HIPS and SIPS software version 7.0 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: 20100301 Ending_Date: 20100330 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.399753 East_Bounding_Coordinate: -88.261883 North_Bounding_Coordinate: 30.222003 South_Bounding_Coordinate: 30.121827 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: St. Petersburg Coastal and Marine Science Center Theme_Keyword: SPCMSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: swath Theme_Keyword: sonar Theme_Keyword: interferometric Theme_Keyword: acoustic Theme_Keyword: sidescan Theme_Keyword: backscatter Theme_Keyword: depth Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientific information Theme_Keyword: oceans Theme_Keyword: oceans and coastal Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: elevation Place: Place_Keyword_Thesaurus: Geographic Names Information System Place_Keyword: Mississippi Place_Keyword: Alabama Place_Keyword: Petit Bois Pass Place_Keyword: Gulf Islands National Seashore Place_Keyword: Northern Gulf of Mexico Place_Keyword: Dauphin Island Place_Keyword: Petit Bois Island Place_Keyword: United States of America (USA) Stratum: Stratum_Keyword_Thesaurus: General Stratum_Keyword: seafloor Stratum_Keyword: sediment Stratum_Keyword: barrier island Stratum_Keyword: geology Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: March Temporal_Keyword: 2010 Access_Constraints: None Use_Constraints: Public domain; pleases reference the U.S. Geological Survey as the originator of this data set in any future products or research derived from these datasets. Not for navigational purposes. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: James G. Flocks Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-803-8747 Contact_Electronic_Mail_Address: jflocks@usgs.gov Data_Set_Credit: Nancy T. DeWitt, William R. Pfeiffer, Jim Flocks, Dana Wiese Native_Data_Set_Environment: Microsoft Windows 7; ESRI ArcCatalog 10 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 DGPS antennas were measured and entered into the F190 internal setup program. Differential Global Positioning System (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 four 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 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 Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Ship motion was measured using a the CodaOctopus Octopus F190 Precision Attitude and Positioning System. The interferometric sonar is an angle-measuring system; depth accuracy decreases with increasing horizontal range. The swath width of the interferometric sonar varied as a function of depth but generally achieved 5 times the water depth. Vertical accuracy is directly affected by the accuracy of both the navigation system and tidal measurments. A tidal zone model was supplied by NOAA and applied to the data referencing it to MLLW. Verified tide data from the Pascagoula, MS, station ID 8741533 and Gulfport, MS, station ID 8745557 were used with the model. Errors with the tidal zone model may be similar to the tidal zone range for this area, which is ~0.40 m. However, local effects in shallow waters like wind, waves, and storms may have an effect on the range in the short term. During the days of this survey simple average statistics of the verified tide data from both tide stations was a low of -0.15 m to a high of +0.33 m with a range of 0.48 m. Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 0.05 Vertical_Positional_Accuracy_Explanation: meters Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20101001 Title: Archive of Side Scan Sonar and Swath Bathymetry Data Collected During USGS Cruise 10CCT02 Offshore of Petit Bois Island Including Petit Bois Pass, Gulf Islands National Seashore, Mississippi, March 2010 Edition: 1.0 Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 577 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: http://pubs.usgs.gov/ds/577 Type_of_Source_Media: DVD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20101001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: 10CCT02 Source_Contribution: Interferometric data acquisition was at sea, collected with a SEA SWATHplus-H 468kHz System pole-mounted starboard on the R/V Tommy Munro. Data were acquired using SEA Swath Processor v3.6 during a cruise in March 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 a DGPS satellite constellation position feed recorded horizontally coincident with the swath system. Process_Step: Process_Description: The interferometric swath data were acquired using SEA Swathplus and raw (.sxr) were converted to (.sxp) line files which were recorded with preliminary bathymetric filters. Process_Date: 20100331 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William R. Pfeiffer Contact_Organization: Jacobs Technology Contact_Position: Data Modeler Contact_Address: Address_Type: mailing and physical address 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: SEASwath (.sxr) line files were then converted in CARIS HIPS & SIPS 7.0.2 conversion wizard. Survey lines were then further spatially clipped, statistically cleaned, and visually edited. Using the CUBE algorithm within CARIS HIPS a 10 meter cell resolution BASE surface was created. The 10 meter BASE surface was then exported to GeoTIFF format. Process_Date: 20100331 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William R. Pfeiffer Contact_Organization: Jacobs Technology Contact_Position: Data Modeler Contact_Address: Address_Type: mailing and physical address 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: The 10 meter BASE surface created in the post-processing software was converted to a ArcGIS Shapefile (.shp). Using the ESRI Geostatistical Wizard a 50 meter cell size Radial Basis Function interpolated conitnuous surface was generated and run through iterations to reach an acceptable predicted error threshold. Process_Date: 20100331 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William R. Pfeiffer Contact_Organization: Jacobs Technology Contact_Position: Data Modeler Contact_Address: Address_Type: mailing and physical address 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 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 219 Column_Count: 263 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 16 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -87.00000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.00000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 50 Ordinate_Resolution: 50 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Mean lower low water Depth_Resolution: 0.01 Depth_Distance_Units: meters Depth_Encoding_Method: implicit coordinate Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Image cell values contain acoustic depth values at 50 meter resolution. Entity_and_Attribute_Detail_Citation: There are no attributes associated with a GeoTIFF image. Detailed_Description: Entity_Type: Entity_Type_Label: cct02_v2_50m Entity_Type_Definition: ESRI ArcGIS 10 Entity_Type_Definition_Source: ESRI ArcMap 10 TIFF 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 Address: Box 25286, Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Electronic_Mail_Address: infoservices@usgs.gov Resource_Description: Downloadable Data 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: ZIP data compression Transfer_Size: 270 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/577/software/arc.zip Offline_Option: Offline_Media: DVD-ROM Recording_Format: DVD-RW 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). Technical_Prerequisites: This file was created for use with ESRI ArcGIS 10 (Build 2800) software. It may also be viewed with ESRI public domain software ArcGIS Explorer 1500 (2.0.0.1500), GeoMapApp 2.8.2 (http://www.geomapapp.org/), or other GIS software capable of importing the data. This disk is readable on any computing platform that has standard DVD-ROM driver software installed. The minimum software requirements for the larger citation are a web browser, Adobe Reader, and a text editor. Metadata_Reference_Information: Metadata_Date: 20101027 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William R. Pfeiffer Contact_Organization: Jacobs Technology Contact_Position: Data Modeler Contact_Address: Address_Type: mailing and physical address 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 Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None