Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: ASV_SEISMICLINES- Seismic Survey Lines collected with Autonomous Surface Vehicle (ASV) IRIS in Apalachicola Bay and St. Geroge Sound, FL Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1381 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1381/GIS/shapefiles/ASV_SeismicLines.zip Larger_Work_Citation: Citation_Information: Originator: David C. Twichell Originator: Brian D. Andrews Originator: H. Lee Edmiston Originator: William R. Stevenson Publication_Date: 2007 Title: Geophysical Mapping of oyster habitats in a shallow estuary; Apalachicola Bay, Florida Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1381 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1381/ Description: Abstract: These data were collected under a cooperative mapping program between the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration Coastal Services Center (NOAA\CSC), and the Apalachicola National Estuarine Research Reserve (NERR). The primary objectives of this program were to collect marine geophysical data to develop a suite of seafloor maps to better define the extent of oyster habitats, the overall seafloor geology of the bay and provide updated information for management of this resource. In addition to their value for management of the bay's oyster resources, the maps also provide a geologic framework for scientific research and the public. High-resolution bathymetry, backscatter intensity, and seismic profile data were collected over 230 square kilometers of the floor of the bay. The study focused on the Apalachicola Bay and western part of St. George Sound portions of the estuary in mostly in depths > 2.0 meters. Purpose: These data represent trackline navigation for seismic-reflection profiles collected from the Autonomous Surface Vehicle (ASV) IRIS during USGS field activity 06001 in Apalachicola Bay and St. George Sound, Florida. The purpose of these data is to manage the filenames and geographic locations of data that were actually collected. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20060603 Ending_Date: 20060627 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -85.062698 East_Bounding_Coordinate: -84.809586 North_Bounding_Coordinate: 29.746495 South_Bounding_Coordinate: 29.618458 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Seafloor Theme_Keyword: Marine Geology Theme_Keyword: field activity serial number 06001 Theme_Keyword: Seismic Profile Theme_Keyword: ASV Theme_Keyword: IRIS Theme_Keyword: Autonomous Surface Vehicle Theme_Keyword: seafloor mapping Theme_Keyword: navigation tracklines Theme_Keyword: seismic navigation Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: transportation Theme_Keyword: location Place: Place_Keyword_Thesaurus: General Place_Keyword: Florida Place_Keyword: Apalachicola National Estuarine Research Reserve Place_Keyword: St. George Sound Place_Keyword: United States Place_Keyword: Gulf of Mexico Place_Keyword: Apalachicola Bay Stratum: Stratum_Keyword_Thesaurus: General Stratum_Keyword: Seafloor Stratum_Keyword: Subsurface Temporal: Temporal_Keyword_Thesaurus: General Temporal_Keyword: 2006 Access_Constraints: None Use_Constraints: These data should not be used at resolutions for which they are not intended. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2006/1381/GIS/thumbnails/ASV_SeismicLines.jpg Browse_Graphic_File_Description: JPEG image of seismic tracklines collected by ASV Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: RTK GPS was used to navigate IRIS, the survey system used to collect the seismic reflection data. The GPS antenna was mounted directly over the seismic transducer. Completeness_Report: Navigation tracklines along which seismic data were not logged were deleted. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigation was recorded to all data acquisition systems using Real Time Kinematic GPS at a one second interval. Horizontal accuracy of the navigation is assumed to be +/- 1 meter. The shot point file and survey line file for the seismic data are both derived from the same navigation file that was logged by the seismic acquisition system, but because the two were processed differently, the shot points do not always fall directly on the survey line. To create the shot point file, the navigation was queried to extract every 500th point starting with shot point 500. By contrast, to create the survey line file, the navigation was queried at a one minute interval (every 60th point), and then a line was drawn using these points. Because of the different processing approaches, many of the shot points, although close, do not fall exactly on the survey line. If meter accuracy is truely needed, it would be best to extract the navigation from the archived SEG-Y seismic files. Lineage: Process_Step: Process_Description: Seismic data were collected with an Edgetech FSSB 424 chirp subbottom profiling system. The seismic data, along with navigation, were acquired with JSTAR, a software package developed by Edgetech. The field data in .JSF format was converted to SEG-Y. Navigation was extracted from the raw SEG-Y format seismic data and converted to an ASCII text file. The ASCII navigation file was downsampled to a 30 second interval, and then imported to ArcGIS using the AddXYdata tool in ArcMap (v. 9.2). The points then were converted to a line using an ArcMap script Points_to_Line v2 developed at the USGS by VeeAnn Cross. Process_Date: 20070520 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Process_Step: Process_Description: Exported feature class from personal geodatabase to a shapefile and projected to geographic. Process_Date: 200707 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U. S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x 2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@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: 204 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 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 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: ASV_SeismicLines Entity_Type_Definition: ASV seismic survey navigation lines for field activity 06001 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: FeatureID Attribute_Definition: Not used Attribute_Definition_Source: ArcMarine Attribute: Attribute_Label: FeatureCod Attribute_Definition: not used Attribute_Definition_Source: ESRI Attribute: Attribute_Label: LineName Attribute_Definition: name of survey line Attribute_Definition_Source: USGS Attribute: Attribute_Label: JDay Attribute_Definition: Julian Day Attribute_Definition_Source: USGS Attribute: Attribute_Label: ImageName Attribute_Definition: Name of seismic profile associated with the survey line. Attribute_Definition_Source: USGS Attribute: Attribute_Label: SurveyID Attribute_Definition: ID number used as join field with SurveyInfo Table for relationship class Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: USGS Survey 06001 Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: VehicleID Attribute_Definition: Id number identifying vehicle (survey platform) used to collect the data. Used as join field in relationship class to VehicleInfo table Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: USGS Autonomous Surface Vehicle (ASV) IRIS Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: DeviceID Attribute_Definition: Identification number used to distinguish the type of acoustic sensor (Device) used to collect data. Also used as the join field for relationship class to MeasuringDeviceTable object Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: EdgeTech FSSB-424 Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: SHAPE_Leng Attribute_Definition: Length of survey line in meters Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Andrews Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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: SHP Format_Version_Number: ArcGIS 9.2 Format_Specification: ESRI polyline shapefile Format_Information_Content: Trackline navigation for seismic reflection profiles collected by ASV IRIS. File_Decompression_Technique: zip Transfer_Size: 30 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2006/1381/GIS/shapefiles/ASV_SeismicLines.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: The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.3 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 data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20070830 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Brian Andrews Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2348 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: bandrews@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_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile