Identification_Information: Citation: Citation_Information: Originator: Patrick Hart Publication_Date: 2005 Title: MD02CHIRPPNTS.SHP - 5-second shot points along chirp seismic lines collected during the 2002 MARION DUFRESNE cruise (02018) in the Gulf of Mexico Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1071 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1071/data/seismic/2002/nav/md02chirppnts.zip Larger_Work_Citation: Citation_Information: Originator: Twichell, D.C. Originator: Cross, V.A. Originator: Paskevich, V.F. Originator: Hutchinson, D.R. Originator: Winters, W.J. Originator: Hart, P.E. Publication_Date: 2005 Title: GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1071 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: 1 DVD-ROM Online_Linkage: http://pubs.usgs.gov/of/2005/1071 Description: Abstract: Since 1982, the U.S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep parts of the Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several different projects that addressed surficial and shallow subsurface geologic processes. Some of these data sets have already been published, but the growing interest in the occurrence and distribution of gas hydrates in the Gulf of Mexico warrants integrating these existing data and associated interpretations into a GIS to provide regional background information for ongoing and future gas hydrate research. Purpose: This GIS data layer shows the shotpoint location with date and time along which chirp seismic-reflection profiles were collected to aid in selecting coring sites during a cruise aboard the R/V MARION DUFRESNE in 2002. The cruise was conducted in the northern Gulf of Mexico (USGS Field Activity 02018) to recover cores for gas hydrate studies. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20020701 Beginning_Time: 1812 Ending_Date: 20020710 Ending_Time: 0250 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -92.268680 East_Bounding_Coordinate: -88.894260 North_Bounding_Coordinate: 28.292740 South_Bounding_Coordinate: 27.167860 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: points Theme_Keyword: shapefile Theme_Keyword: navigation Theme_Keyword: R/V MARION DUFRESNE Theme_Keyword: Chirp high-resolution seismic profiles Theme_Keyword: Information Archives Field Activity 02018 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: location Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Gulf of Mexico Place_Keyword: Continental slope Access_Constraints: None Use_Constraints: 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: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer 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 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1071/data/seismic/2002/nav/md02chirppnts.gif Browse_Graphic_File_Description: Overview image showing the extent and coverage of the data layer. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1071/data/seismic/2002/nav/md02chirppnts-thumb.gif Browse_Graphic_File_Description: Thumbnail image showing the extent and coverage of the data layer. Browse_Graphic_File_Type: GIF Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Logical_Consistency_Report: No additional checks for topological consistency were performed on this data set. No duplicate features are present. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Differential GPS navigation Lineage: Process_Step: Process_Description: Data were received from the ship DGPS system and logged to a shipboard computer at a 5-sec interval. Source_Used_Citation_Abbreviation: DGPS receiver Source_Produced_Citation_Abbreviation: d-1-02-gm.060 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Patrick Hart Contact_Organization: U.S. Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 999 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: (650) 329-5160 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: hart@usgs.gov Process_Step: Process_Description: The shipboard navigation file was edited with a field being added to include the line number for the time intervals when chirp seismic data were being collected. Source_Used_Citation_Abbreviation: d-1-02-gm.060 Source_Produced_Citation_Abbreviation: d-1-02-gm.063 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Patrick Hart Contact_Organization: U.S. Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 999 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5160 Contact_Facsimile_Telephone: 650-329-5190 Contact_Electronic_Mail_Address: hart@usgs.gov Process_Step: Process_Description: The navigation file was edited to include only those sections along which seismic data were collected, and the resulting file was saved in ArcInfo E00 format. Source_Used_Citation_Abbreviation: d-1-02-gm.063 Source_Produced_Citation_Abbreviation: d-1-02-GM_NAV.E00 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Patrick Hart Contact_Organization: U.S. Geological Survey Contact_Position: Geophysicist Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 999 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Contact_Voice_Telephone: 650-329-5160 Contact_Facsimile_Telephone: 650-329-5190 Contact_Electronic_Mail_Address: hart@usgs.gov Process_Step: Process_Description: The ArcInfo E00 format file was opened in ArcView and saved as points in a shapefile. Source_Used_Citation_Abbreviation: d-1-02-GM_NAV.E00 Source_Produced_Citation_Abbreviation: md02chirppnts.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing 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 x 2251 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: Entity point Point_and_Vector_Object_Count: 11329 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: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: md02chirppnts Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: ESRI 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: YEAR Attribute_Definition: Year data collected Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2002 Enumerated_Domain_Value_Definition: Year data collected Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: JD Attribute_Definition: Julian day data were collected Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 185 Range_Domain_Maximum: 196 Attribute_Units_of_Measure: integer Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: HR_MIN Attribute_Definition: Time in hours and minutes Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35 Range_Domain_Maximum: 2225 Attribute_Units_of_Measure: integer Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: SEC Attribute_Definition: Seconds Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: integer Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: LAT Attribute_Definition: Latitude coordinate of position in decimal degrees Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 27.16786 Range_Domain_Maximum: 28.29274 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: .00001 Attribute: Attribute_Label: LONG Attribute_Definition: Longitude coordinate of position in decimal degrees Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -92.26868 Range_Domain_Maximum: -88.89426 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: .00001 Attribute: Attribute_Label: LINE Attribute_Definition: Line identification Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string identifying the survey line. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Deborah Hutchinson 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 x2263 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dhutchinson@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: 3.3 Format_Specification: ESRI point shapefile Format_Information_Content: The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBase format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip Transfer_Size: 0.303 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2005/1071/data/seismic/2002/nav/md02chirppnts.zip Access_Instructions: Data may be retrieved via any WWW browser. 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® 3.0 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 data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20051212 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer 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 x 2261 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@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