Identification_Information: Citation: Citation_Information: Originator: David. C. Twichell Originator: VeeAnn A. Cross Publication_Date: 2004 Title: Point Shapefile indicating John Day Reservoir bottom photographs locations - 2000 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 shapefile is intended to provide the locations for which bottom photographs of the floor of the John Day Reservoir have been acquired. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000925 Ending_Date: 20000927 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -120.630400 East_Bounding_Coordinate: -119.835817 North_Bounding_Coordinate: 45.844383 South_Bounding_Coordinate: 45.691083 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: ArcView Theme_Keyword: CMGP Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: grab sample Theme_Keyword: images Theme_Keyword: lake Theme_Keyword: OF 2004-1014 Theme_Keyword: Open-File Report Theme_Keyword: sediment Theme_Keyword: sediment sample Theme_Keyword: shapefile Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: point Place: Place_Keyword_Thesaurus: General Place_Keyword: Columbia River Place_Keyword: John Day Dam Place_Keyword: John Day Reservoir Place_Keyword: Lake Umatilla Place_Keyword: McNary Dam Place_Keyword: North America Place_Keyword: Oregon Place_Keyword: United States Place_Keyword: Washington 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: 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) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@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: Positional_Accuracy: Horizontal_Positional_Accuracy: Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 10m Horizontal_Positional_Accuracy_Explanation: The navigation system is believed to have an accuracy better than 10m, but because the instrument is towed, this reduces the navigational accuracy. Lineage: Process_Step: Process_Description: A log book was maintained during the sediment sampling portion of the cruise. This logbook contained information about the time that video imagery was being acquired (both in UTC time and VHS time), as well as the time and location fix of when a sampling attempt was made. The complete GPS data was recorded to the hard disk for all but the first sample taken. The video imagery was collected using the USGS SeaBOSS system and recorded to Hi8 8mm tape. Process_Step: Process_Description: In the lab, the SeaBOSS tapes were played back on a Sony EVS-5000 Hi8 video player and the desired sections were written to DVD using a Pioneer PRV-9000 DVD recorder. Source_Used_Citation_Abbreviation: Blackwood, D.B., Parolski, K.F., 2001, Seabed observation and sampling system: Sea Technology, February 2001, v. 44, no. 2, p. 39-43. Process_Step: Process_Description: Once the DVD was finalized, the DVD was played on a Macintosh G4 computer, and individual frames were grabbed by the Snapz Pro X software. The time presented in these images is the time (hours, minutes, seconds) from the start of the video tape (VHS time). 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: 48 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: jd2000 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: SAMPLE_ID Attribute_Definition: Identification representing the sample where JD indicated John Day, and the number represents the sample number. Attribute_Definition_Source: Dave Twichell Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude fix for the location of the video image. Attribute_Definition_Source: Correlated value of the time of the video image with the GPS file. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 45.691083 Range_Domain_Maximum: 45.844383 Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude fix for the location of the video image. Attribute_Definition_Source: Correlated value of the time of the video image with the GPS file. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -120.630400 Range_Domain_Maximum: -119.835817 Attribute: Attribute_Label: DESCRIPTIO Attribute_Definition: Description of the video image. Attribute_Definition_Source: Dave Twichell Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: IMAGE Attribute_Definition: Prefix portion of the name of the image. Attribute_Definition_Source: Dave Twichell Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: SAMPLE_ACQ Attribute_Definition: Indicates whether or not a sediment sample was actually acquired during the deployment of the sampler. Attribute_Definition_Source: VeeAnn A. Cross Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: IMAGE_TIME Attribute_Definition: The time (UTC) indicating when the image was grabbed from the video. Attribute_Definition_Source: Dave Twichell Attribute_Domain_Values: Unrepresentable_Domain: character set Attribute: Attribute_Label: HOTLINK Attribute_Definition: Path indicating the location of the corresponding bottom photograph hotlinked to this point. This path contains an environment variable specifying the root directory of the project. Attribute_Definition_Source: Data processor. Attribute_Domain_Values: Unrepresentable_Domain: character set Overview_Description: Entity_and_Attribute_Overview: There are 2 instances where there is no image_time. In one case (JD01), the raw GPS was not recorded to hard disk, therefore the sample location is what was recorded in the original log book. In another case (JD20), no video was recorded corresponding to the sampler deployment. Although the attempt was made to grab an image from the video close to when the sediment sample was acquired, this was not always possible. Therefore, these locations refer to when/where the image was acquired, not the corresponding grab sample. Distribution_Information: Distributor: 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) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@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: 0.035 Metadata_Reference_Information: Metadata_Date: 20040513 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