Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: Single-Beam Bathymetry Survey Tracklines Collected in 2012 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM04) Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: https://pubs.usgs.gov/ds/0847/ds847_data_downloads.html Larger_Work_Citation: Citation_Information: Originator: Nancy T. DeWitt Originator: Julie C. Bernier Originator: William R. Pfeiffer Originator: Jennifer L. Miselis Originator: James G. Flocks Originator: B.J. Reynolds Originator: Dana S. Wiese Originator: Kyle W. Kelso Publication_Date: 2014 Title: Coastal Bathymetry and Backscatter Data Collected in 2012 from the Chandeleur Islands, Louisiana Geospatial_Data_Presentation_Form: multimedia presentation Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: 847 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ds847 Description: Abstract: As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey's St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off the northern Chandeleur Islands, Louisiana, in June of 2012. The overall objective of the study is to better understand barrier-island geomorphic evolution, particularly storm-related depositional and erosional processes that shape the islands over annual to interannual timescales (1-5 years). The collection of geophysical data will allow us to identify relationships between the geologic history of the island and its present day morphology and sediment distribution. This mapping effort was the first in a series of three planned surveys in this area. High resolution geophysical data collected in each of 3 consecutive years along this rapidly changing barrier-island system will provide a unique time-series dataset that will significantly further the analyses and geomorphological interpretations of this and other coastal systems, improving our understanding of coastal response and evolution over short time scales (1-5 years). This report serves as an archive of processed interferometric swath and single-beam bathymetry data that were collected during two cruises (USGS Field Activity Numbers 12BIM03 and 12BIM04) along the northern portion of the Chandeleur Islands, Breton National Wildlife Refuge, Louisiana, in July of 2012. Geographic information system data products include a 50 m-cell-size interpolated bathymetry grid surface, trackline maps, and point data files. Additional files include error analysis maps, Field Activity Collection System logs, and formal Federal Geographic Data Committee metadata. Purpose: This zip archive contains the survey tracklines in Esri shapefile format for the single-beam bathymetry data collected in June 2012 around the northern Chandeleur Islands, Louisiana. Supplemental_Information: Trackline files were recorded at the time of the survey using HYPACK version 10.0.5.31 marine surveying, positioning, and navigation software. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2012 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.915048 East_Bounding_Coordinate: -88.762774 North_Bounding_Coordinate: 30.070733 South_Bounding_Coordinate: 29.867602 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:bfac8f7f-baec-4476-bdc6-55acb0ca29f2 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: geoscientificInformation Theme_Keyword: location Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: tracklines Theme_Keyword: marine geology Theme_Keyword: hydrography Theme_Keyword: geophysical Theme_Keyword: single-beam Theme_Keyword: bathymetry Theme_Keyword: HYPACK 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: Barrier Island Evolution Research Project Theme_Keyword: Barrier Island Mapping Theme_Keyword: 12BIM04 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Louisiana Place_Keyword: Gulf of Mexico Place_Keyword: Chandeleur Islands Place_Keyword: Chandeleur Sound Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: datum Stratum_Keyword: water Stratum_Keyword: shoreline Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: July 2012 Temporal_Keyword: August 2012 Access_Constraints: none Use_Constraints: The U.S. Geological Survey requests that it be referenced as the originator of this dataset in any future products or research derived from these data. These data should not be used for navigational purposes. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nancy T. DeWitt Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: ndewitt@usgs.gov Data_Set_Credit: U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The positional accuracy of the tracklines is determined by the accuracy of raw position data recorded by the global positioning system (GPS) during data collection. The tracklines represent the data coverage extent for the single-beam bathymetry survey. These trackline data have not been independently verified for accuracy. Logical_Consistency_Report: This zip archive contains the single-beam bathymetry survey tracklines, recorded at the time of data collection in July 2012. Field logs, vessel platform descriptions, and other survey information are available at http://pubs.usgs.gov/ds/847/facs Completeness_Report: This is a complete survey trackline dataset for the single-beam bathymetry data collected in July 2012 from the northern Chandeleur Islands. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: An Ashtech GPS receiver on the survey boat recorded the 12-channel full-carrier- phase positioning signals (L1/L2) from satellites via a Thales choke-ring antenna. The manufacturer's stated accuracy for the raw kinematic GPS data is 3 to 5 centimeters (cm). The raw trackline position data were recorded with HYPACK version 10 marine surveying, positioning, and navigation software. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The survey tracklines do not include or represent vertical data. Lineage: Process_Step: Process_Description: Acquisiton: The trackline positions for USGS Cruise 12BIM04 were acquired with an Ashtech Z-Xtreme GPS receiver unit streaming position data to the hydrographic software HYPACK version 10.0.5.31. Process_Date: 2012 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nancy T. DeWitt Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: U.S. Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: ndewitt@usgs.gov Process_Step: Process_Description: The tracklines were exported from HYPACK in Keyhole Markup Language (KML) format and imported into Esri ArcGIS version 10.1. In Esri ArcGIS, the trackline data were projected from the GPS acquisition datum (World Geodetic System of 1984, WGS84 G1150) to the North American Datum of 1983 (NAD83), Universal Transverse Mercator (UTM) Zone 16 North, and saved to Esri shapefile format. Process_Date: 2012 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Julie C. Bernier Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: U.S. Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: jbernier@usgs.gov Source_Produced_Citation_Abbreviation: 12BIM04_SBB_tracklines_NAD83.shp 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: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 248 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: 0.000000002220024164500956 Ordinate_Resolution: 0.000000002220024164500956 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: Detailed_Description: Entity_Type: Entity_Type_Label: 12BIM04_SBB_tracklines_NAD83.shp Entity_Type_Definition: Esri shapefile containing the survey tracklines for the single-beam bathymetry data collected in July 2012 around the northern Chandeleur Islands, Louisiana. Entity_Type_Definition_Source: USGS 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: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: HypackLine Attribute_Definition: String Attribute_Definition_Source: HYPACK Attribute_Domain_Values: Unrepresentable_Domain: Line number in survey generated by HYPACK Attribute: Attribute_Label: DOY Attribute_Definition: Text Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Day of year of 2012 the line was surveyed Attribute: Attribute_Label: Year Attribute_Definition: String. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Year survey completed Attribute: Attribute_Label: Length_m Attribute_Definition: Length on survey line, in meters Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.86 Range_Domain_Maximum: 11625.21 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: U.S. Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: ndewitt@usgs.gov Resource_Description: Downloadable data Distribution_Liability: This publication was prepared by an agency of the United States Government. Although these data were 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, 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: Fees: none Digital_Form: Digital_Transfer_Information: Format_Name: Esri shapefile File_Decompression_Technique: ZIP Format_Version_Date: 2013 Format_Specification: SHP Transfer_Size: 1.88 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/ds/0847/data/vector/12BIM04_SBB_tracklines.zip Offline_Option: Offline_Media: DVD Recording_Format: DVD-R Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2014 Custom_Order_Process: none Technical_Prerequisites: This shapefile was created for use with Esri ArcGIS software. It may also be viewed with Esri public domain software ArcExplorer or other GIS software capable of importing the data. Metadata_Reference_Information: Metadata_Date: 20201013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Nancy T. DeWitt Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: U.S. Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: ndewitt@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None Metadata_Use_Constraints: The U.S. Geological Survey requests that it be referenced as the originator of this dataset in any future products or research derived from these data.