Identification_Information:
  Citation:
    Citation_Information:
      Originator: U.S. Geological Survey
      Publication_Date: 2011
      Title: 2010-012-FA_subx_Tracklines.shp - Tracklines of swath bathymetry collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center offshore of the Gulf Islands, MS, 2010 (ESRI polyline shapefile)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: vector digital data
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 2010-1178
      Publication_Information:
        Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
        Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
      Online_Linkage: http://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_subx_trks.zip
      Larger_Work_Citation:
        Citation_Information:
          Originator: Elizabeth A. Pendleton
          Originator: Wayne E. Baldwin
          Originator: William W. Danforth
          Originator: Nancy T. Dewitt
          Originator: Arnell S. Forde
          Originator: David S. Foster
          Originator: Kyle W. Kelso
          Originator: William R. Pfeiffer
          Originator: Aaron M. Turecek
          Originator: James G. Flocks
          Originator: David C. Twichell
          Publication_Date: 2011
          Title: Geophysical Data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi
          Edition: 1.0
          Series_Information:
            Series_Name: Open-File Report
            Issue_Identification: 2010-1178
          Publication_Information:
            Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
            Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
          Online_Linkage: http://pubs.usgs.gov/of/2010/1178/
  Description:
    Abstract: In 2010, the U.S. Geological Survey in Woods Hole, MA and St. Petersburg, FL, in partnership with the U.S. Army Corps of Engineers, Mobile District conducted geologic mapping to characterize the seafloor and shallow subsurface stratigraphy offshore of the Gulf Islands of Mississippi. The mapping was carried out during two cruises in March, 2010 on the R/V Tommy Munro of Biloxi, MS. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (both 234 kHz and 468 kHz systems), a Klein 3000 and a Klein 3900 dual frequency sidescan-sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality, high-resolution geologic maps and geophysical interpretations that can be utilized to identify sand resources within the region and better understand the Holocene evolution and anticipate future changes in this coastal system. More information on the field work can be accessed from the Woods Hole Coastal and Marine Science Center Field Activity webpage <http://quashnet.er.usgs.gov/data/2010/10012/> or the St. Petersburg Coastal and Marine Geology InfoBank <http://walrus.wr.usgs.gov/infobank/m/m210gm/html/m-2-10-gm.meta.html>.
    Purpose: This data set contains tracklines for just over 1320 km of swath bathymetric data collected by the U.S. Geological Survey in Woods Hole, MA during a 2010 geophysical cruise offshore of the Gulf Islands, MS. These data will be used to characterize the seafloor within the area
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 20100304
        Ending_Date: 20100317
    Currentness_Reference: Data were not collected on 20100310, and 20100312-20100314 due to weather conditions, crew changes, or survey location.
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -89.082584
      East_Bounding_Coordinate: -88.710780
      North_Bounding_Coordinate: 30.228288
      South_Bounding_Coordinate: 30.143268
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: General
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Woods Hole Coastal and Marine Science Center
      Theme_Keyword: WHCMSC
      Theme_Keyword: Coastal and Marine Geology Program
      Theme_Keyword: CMGP
      Theme_Keyword: tracks
      Theme_Keyword: tracklines
      Theme_Keyword: swath bathymetry
      Theme_Keyword: bathymetry
      Theme_Keyword: ESRI polyline shapefile
      Theme_Keyword: WHCMSC field activity serial number 2010-012-FA
      Theme_Keyword: St. Petersburg Coastal and Marine Science Center
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: oceans
      Theme_Keyword: oceans and coastal
      Theme_Keyword: oceans and estuaries
      Theme_Keyword: location
    Place:
      Place_Keyword_Thesaurus: General
      Place_Keyword: Mississippi
      Place_Keyword: Gulf Islands
      Place_Keyword: North Central Gulf Coast
      Place_Keyword: United States
      Place_Keyword: Gulf of Mexico
      Place_Keyword: West Ship Island
      Place_Keyword: East Ship Island
      Place_Keyword: Horn Island
      Place_Keyword: Dog Key Pass
      Place_Keyword: Camille Cut
      Place_Keyword: Petit Bois Island
      Place_Keyword: Gulfport Ship Channel
      Place_Keyword: Cat Island
  Access_Constraints: None
  Use_Constraints: The Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: David C. Twichell
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Oceanographer
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Rd.
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
      Contact_Voice_Telephone: (508) 548-8700x2266
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: dtwichell@usgs.gov
  Browse_Graphic:
    Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_subx.png
    Browse_Graphic_File_Description: Swath bathymetric tracklines offshore of the Gulf Islands, MS
    Browse_Graphic_File_Type: PNG
  Native_Data_Set_Environment: Microsoft Windows XP Professional x64 Edition Version 2003 Service Pack 2; ESRI ArcCatalog 9.3 Build 1770
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: All attributes were checked in a consistent manner.
  Logical_Consistency_Report: Any spurious data points were removed during processing.
  Completeness_Report: Navigation from all the bathymetric tracklines from cruise 2010-012-FA was used to generate this shapefile.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: These data were navigated with a Differential Global Positioning System (DGPS); they are accurate to +/- 1 to 2 meters, horizontally.  Unless noted, all DGPS data are referenced to WGS84, and distance between sidemounted interferometric sonar and GPS antennae are corrected.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
      Type_of_Source_Media: disc
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 20100304
            Ending_Date: 20100317
        Source_Currentness_Reference: Data were not collected on 20100310, and 20100312-20100314 due to weather conditions, crew changes, or survey location.
      Source_Contribution:
        Trackline acquisition at sea (2010):
        These bathymetric data were collected with a SEA Ltd Swathplus interferometric sonar (234 kHz) mounted on the portside of the R/V Tommy Munro of Biloxi, MS. The data were acquired with SwathPlus Software (version: 3.6.5). Tracklines are spaced 150 m apart in the shore parallel direction.
    Process_Step:
      Process_Description: Navigation was extracted from the bathymetric data (raw *SXR format) in SwathPlus  (version: 3.6.5) using the 'output position file' function
      Process_Date: 2010
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Elizabeth A. Pendleton
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Geologist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Rd.
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
          Contact_Voice_Telephone: (508) 548-8700x2259
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: ependleton@usgs.gov
    Process_Step:
      Process_Description: Navigation output from Swathplus (version: 3.7.0) was concatenated together for all files and converted to comma-separated value text using AWK for input to ArcGIS (version 9.3). In ArcCatalog (9.3), navigation text was converted to a point feature class by right-clicking on the comma separated text file -- Create Feature Class -- from XY table.
      Process_Date: 2010
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Elizabeth A. Pendleton
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Geologist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Rd.
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
          Contact_Voice_Telephone: (508) 548-8700x2259
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: ependleton@usgs.gov
    Process_Step:
      Process_Description: XTools Pro (version 5.2.0) was then used within ArcMap (version 9.3) to convert the navigation points to a trackline shapefile. The trackline shapefiles were edited to remove spurious fixes, and a length field was created and populated using 'Calculate Geometry', which can be accessed by right-clicking on the attribute field name in the table view. . The calculation was based on UTM, Zone 16, WGS84 in the units of meters.
      Process_Date: 2010
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Elizabeth A. Pendleton
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Geologist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Rd.
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
          Contact_Voice_Telephone: (508) 548-8700 x2259
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: ependleton@usgs.gov
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: String
      Point_and_Vector_Object_Count: 196
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000001
      Longitude_Resolution: 0.000001
      Geographic_Coordinate_Units: Decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: 2010_012FA_subx_Tracklines
      Entity_Type_Definition: ESRI polyline shapefile
      Entity_Type_Definition_Source: ESRI
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Filename
      Attribute_Definition: line and file number for corresponding bathymetric filename. This information is used during data acquisition, storage, and processing.
      Attribute_Definition_Source: U.S. Geological Survey
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential line and file numbers used to distinguish tracklines
    Attribute:
      Attribute_Label: Length
      Attribute_Definition: length of line segment in UTM Zone 16 N meters
      Attribute_Definition_Source: U.S. Geological Survey
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 418.21
          Range_Domain_Maximum: 13006.75
          Attribute_Units_of_Measure: meters
          Attribute_Measurement_Resolution: 0.01
    Attribute:
      Attribute_Label: Julian_day
      Attribute_Definition: Julian Day of trackline collection (Julian day is the integer number representing the interval of time in days since January 1 of the year)
      Attribute_Definition_Source: U.S. Geological Survey
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 63
          Range_Domain_Maximum: 76
          Attribute_Units_of_Measure: day
          Attribute_Measurement_Resolution: 1
    Attribute:
      Attribute_Label: year
      Attribute_Definition: Calendar year data were collected
      Attribute_Definition_Source: U.S. Geological Survey
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 2010
          Enumerated_Domain_Value_Definition: year
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Elizabeth A. Pendleton
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Rd.
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
      Contact_Voice_Telephone: (508) 548-8700x2259
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: ependleton@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: WinZip
        Format_Version_Number: 14.5
        Format_Information_Content: This WinZip file contains a shapefile of bathymetric tracklines offshore of the Gulf Islands, MS, and the associated metadata.
        File_Decompression_Technique: Use WinZip or pkUnzip
        Transfer_Size: 37.5 Mbytes
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/of/2010/1178/GIS_catalog/Tracklines/2010-012-FA_subx_trks.zip
          Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
        Offline_Option:
          Offline_Media: DVD-ROM
          Recording_Capacity:
            Recording_Density: 4.75
            Recording_Density_Units: Gbytes
          Recording_Format: UDF
    Fees: None
  Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (ESRI) polyline shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
Metadata_Reference_Information:
  Metadata_Date: 20110429
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Elizabeth A. Pendleton
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Road
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
        Country: USA
      Contact_Voice_Telephone: 508-548-8700 x2259
      Contact_Facsimile_Telephone: (508)-457-2310
      Contact_Electronic_Mail_Address: ependleton@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_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile