Identification_Information:
  Citation:
    Citation_Information:
      Originator: VeeAnn A. Cross
      Originator: David C. Twichell
      Publication_Date: 2004
      Title: Columbia River ESTR00030 Seismic Shotpoint Navigation every 500 shots
      Geospatial_Data_Presentation_Form: vector digital data
      Online_Linkage:
      Larger_Work_Citation:
        Citation_Information:
          Originator: VeeAnn A. Cross
          Originator: David C. Twichell
          Publication_Date: 2004
          Title: Geophysical, Sedimentologic, and Photographic Data from the John Day Reservoir, Washington and Oregon:  Data Archive and Preliminary Discussion
          Series_Information:
            Series_Name: Open-File Report
            Issue_Identification: 2004-1014
          Publication_Information:
            Publication_Place: Woods Hole Science Center, Woods Hole, MA
            Publisher: U.S. Geological Survey
  Description:
    Abstract: A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-impoundment sediment, and to verify these geophysical data with video photography and bottom sediment samples. The field program was a cooperative effort between the USGS Coastal and Marine Geology Team of the Geologic Division and the USGS Columbia River Research Laboratory of the Biological Resources Division. The data collection was completed aboard the R/V ESTERO during September 13-27, 2000. The interest in sediment accumulation in the reservoir was two-fold. First, it was unknown how effective this reservoir was as a sediment trap to material that otherwise would have been transported down-river to the estuary and eventually to the ocean. The recent erosion of beaches along the Washington coast has been attributed to a decreased contribution of sediment from the Columbia River to the coastal system due to the damming of the river. Second, sediment accumulation on the floors of reservoirs along the Columbia River has been suggested to be diminishing salmon spawning grounds. The extent of changes in habitat since construction of the John Day Dam, however, had not been documented. Common data sets were needed to address both of these questions, and for these reasons this geophysical and sampling program was undertaken.
    Purpose: This navigation file can be brought into ArcView or another GIS to enable correlation between the seismic-reflection profiles in GIF format, and the sidescan-sonar imagery and other features on the lake floor.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 20000911
        Ending_Date: 20000922
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -120.683660
      East_Bounding_Coordinate: -119.325896
      North_Bounding_Coordinate: 45.932461
      South_Bounding_Coordinate: 45.688597
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: General
      Theme_Keyword: ArcView
      Theme_Keyword: chirp
      Theme_Keyword: CMGP
      Theme_Keyword: Coastal and Marine Geology Program
      Theme_Keyword: navigation
      Theme_Keyword: seismic
      Theme_Keyword: seismic-reflection
      Theme_Keyword: shapefile
      Theme_Keyword: shotpoint
      Theme_Keyword: SIS-1000
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Woods Hole Science Center
      Theme_Keyword: reservoir
      Theme_Keyword: Open-File Report
      Theme_Keyword: OF 2004-1014
    Place:
      Place_Keyword_Thesaurus: General
      Place_Keyword: North America
      Place_Keyword: United States
      Place_Keyword: Washington
      Place_Keyword: Oregon
      Place_Keyword: Columbia River
      Place_Keyword: John Day Reservoir
      Place_Keyword: John Day Dam
      Place_Keyword: McNary Dam
      Place_Keyword: Lake Umatilla
  Access_Constraints: none
  Use_Constraints: The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: VeeAnn A. Cross
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Marine 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 x2251
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: vatnipp@usgs.gov
  Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.2.0.700
Data_Quality_Information:
  Logical_Consistency_Report: Consistent.
  Completeness_Report: These points encompass all the seismic-reflection profiles acquired on this particular cruise.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Quantitative_Horizontal_Positional_Accuracy_Assessment:
        Horizontal_Positional_Accuracy_Value: 10-20m
        Horizontal_Positional_Accuracy_Explanation: The navigational system has an accuracy better than 10m, but because the acquisition system is towed, this reduces the navigational accuracy.
  Lineage:
    Process_Step:
      Process_Description: Navigational fixes were recorded in the header of the seismic data. These fixes were stored as eastings and northings in UTM zone 11, NAD83. Approximately every 6th shot has a navigation fixes. These values were placed in DigiRule Geocad and interpolated to a fix every 500 shots. The first and last navigated shot were maintained.
    Process_Step:
      Process_Description: These fixes were then reprojected to geographic coordinates, decimal degrees using PROJ v. 4.1.
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: VeeAnn A. Cross
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Marine 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 x2251
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: vatnipp@usgs.gov
    Process_Step:
      Process_Description: These point data were then imported into ArcView3.2 as an event theme and converted to a shapefile.
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: VeeAnn A. Cross
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Marine 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 x2251
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: vatnipp@usgs.gov
    Process_Step:
      Process_Description: Attribute information was added to the shapefile table to better describe each data point.
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: VeeAnn A. Cross
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Marine 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 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: Entity point
      Point_and_Vector_Object_Count: 374
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      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: jd00_500sht
    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: LONGITUDE
      Attribute_Definition: Longitudinal position of the point.
      Attribute_Definition_Source: user defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -120.683902
          Range_Domain_Maximum: -119.325896
    Attribute:
      Attribute_Label: LATITUDE
      Attribute_Definition: Latitudinal position of the point.
      Attribute_Definition_Source: user defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 45.688597
          Range_Domain_Maximum: 45.932461
    Attribute:
      Attribute_Label: LINENUM
      Attribute_Definition: String representing the seismic line number that the point belongs to.
      Attribute_Definition_Source: user defined
      Attribute_Domain_Values:
        Unrepresentable_Domain: character set
    Attribute:
      Attribute_Label: SHOT_NUM
      Attribute_Definition: Seismic shot number.
      Attribute_Definition_Source: software generated
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 20828
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: VeeAnn A. Cross
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Marine 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 x2251
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: vatnipp@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability: These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: SHAPEFILE
        Transfer_Size: 0.052
Metadata_Reference_Information:
  Metadata_Date: 20040309
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: VeeAnn A. Cross
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Marine 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 x2251
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: vatnipp@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