JPEG Images of the Floor of the John Day Reservoir - Acquired in 2000

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:

JPEG Images of the Floor of the John Day Reservoir - Acquired in 2000

Geospatial_Data_Presentation_Form: remote-sensing image

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:

To provide bottom images of the reservoir that will aid in the interpretation of the remotely sensed data.

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: -120.63040

East_Bounding_Coordinate: -119.835817

North_Bounding_Coordinate: 45.844383

South_Bounding_Coordinate: 45.691083

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: CMGP

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: images

Theme_Keyword: JPEG

Theme_Keyword: lake

Theme_Keyword: OF 2004-1014

Theme_Keyword: Open-File Report

Theme_Keyword: reservoir

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:

Lineage:

Process_Step:

Process_Description:

Video imagery was collected with a SeaBOSS system from the Woods Hole Science Center.

Process_Step:

Process_Description:

The video information was written to DVD, and individual frames were then captured from this DVD. The time on the image is video time, not UTC or local time. The image saved was not necessarily at the time a bottom sample was acquired. In most cases the image is close to that time, but in some instances there are as much as a few minutes difference in time between the video picture and the grab sample.

Process_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

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 882

Column_Count: 1157

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 1.000000

Ordinate_Resolution: 1.000000

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The images have no inherent geographic positional information. The location of the image is based on a correlation of the time the image was acquired, and navigation that was simultaneously being acquired. These images are to be used in concert with the navigational shapefile jd2000.shp.

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: JPEG

Transfer_Size: 10.1

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