Point Shapefile indicating John Day Reservoir bottom photographs locations - 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:

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