John Day Reservoir SeaBOSS video tracklines

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David C. Twichell

Originator: VeeAnn A. Cross

Publication_Date: 2004

Title: John Day Reservoir SeaBOSS video tracklines

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 provides the tracklines along which the SeaBOSS sampler collected video.

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: -120.630967

East_Bounding_Coordinate: -119.835800

North_Bounding_Coordinate: 45.844383

South_Bounding_Coordinate: 45.691017

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: navigation

Theme_Keyword: OF 2004-1014

Theme_Keyword: Open-File Report

Theme_Keyword: polyline

Theme_Keyword: reservoir

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

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: 10 m

Horizontal_Positional_Accuracy_Explanation:

The navigational system has an accuracy better than 10m, but because the data acquisition system is towed, this reduces the accuracy of the system.

Lineage:

Process_Step:

Process_Description:

When the SeaBOSS sampler and video system was deployed, the UTC start and end times were recorded. At the same time, the GPS navigation data was being recorded to hard disk. Post-cruise, the portions of the GPS data corresponding to SeaBOSS deployments was extracted using and AWK script.

Process_Step:

Process_Description:

Once the navigation of interest was extracted from the GPS files, these points were then converted to a polyline shapefile using an avenue script in ArcView 3.2a. Attributes were added to better describe when the video data was acquired.

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: 47

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: jd2000_vidtracks

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: ID

Attribute_Definition:

Automatically sequentially generated number which identifies individual polylines.

Attribute_Definition_Source: Software generated.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 46

Attribute:

Attribute_Label: LINENAME

Attribute_Definition:

This number corresponds to the sample transect as defined by the SeaBOSS deployment number.

Attribute_Definition_Source: Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2

Range_Domain_Maximum: 48

Attribute:

Attribute_Label: START_TIME

Attribute_Definition:

Start time for the video transect. Time is UTC time in hours:minutes:seconds.

Attribute_Definition_Source: data processor

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: END_TIME

Attribute_Definition:

End time for the video transect. Time is UTC time in hours:minutes:seconds.

Attribute_Definition_Source: data processor

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: JDAY

Attribute_Definition: Julian day of the video recording.

Attribute_Definition_Source: data processor

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 269

Range_Domain_Maximum: 271

Attribute_Units_of_Measure: day

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

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: SHAPEFILE

Transfer_Size: 0.060

Metadata_Reference_Information:

Metadata_Date: 20040325

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