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Bathymetric and geophysical surveys of Englebright Lake, Yuba-Nevada Counties, California

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: Jonathan R. Childs, Noah P. Snyder, and Margaret A. Hampton

Publication_Date: 2003

Title:

Bathymetric and geophysical surveys of Englebright Lake, Yuba-Nevada Counties, California

Geospatial_Data_Presentation_Form:

text report containing graphical map images (no spatial referencing)

Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of03-383>

Description:

Abstract:

A new bathymetric map of Englebright Lake, Yuba-Nevada Counties, California is compared to 1939 elevations captured from a pre-dam topographic survey to determine how much sediment has accumulated in the reservoir in the past 60 years. A longitudinal profile along the entire length (thalweg) of the reservoir and cross-sections across the reservoir at seven points illustrate the pre-dam and present bottom profiles. Calculations of the total volume of sediment impounded by the dam for eight regions of the reservoir are presented.

Purpose:

These data are intended for science researchers, policy makers, and the general public.

Supplemental_Information:

Information for USGS Coastal and Marine Geology related activities are online at: <http://walrus.wr.usgs.gov/>

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20010501

Ending_Date: 20010530

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -121.28333

East_Bounding_Coordinate: -121.19167

North_Bounding_Coordinate: +39.33333

South_Bounding_Coordinate: +39.23333

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: marine geology

Theme_Keyword: lake depth

Theme_Keyword: bathymetry

Theme_Keyword: reservoir

Theme_Keyword: sediment thickness

Theme_Keyword: isopach

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Englebright Lake

Place_Keyword: Englebright Reservoir

Place_Keyword: Harry L. Englebright Lake

Place_Keyword: Yuba River

Place_Keyword: Yuba County

Place_Keyword: Nevada County

Place_Keyword: California

Place_Keyword: USA

Access_Constraints: None

Use_Constraints:

These data are not intended for navigational purposes. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jonathan R. Childs

Contact_Organization:

United States Geological Survey (USGS) Coastal and Marine Geology (CMG)

Contact_Position: Geophysicist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS, MailStop 999, 345 Middlefield Road

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025-3561

Country: USA

Contact_Voice_Telephone: (650) 329-5195

Contact_Electronic_Mail_Address: jchilds@usgs.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: Data have not been independently verified.

Logical_Consistency_Report: Undetermined

Completeness_Report:

Reference the report for a description of the bathymetric survey and pre-dam topography model.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: 1.0 meters

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

One percent (1%) of the water depth for bathymetry; 10 feet for pre-dam topography and sediment thickness.

Lineage:

Process_Step:

Process_Description:

The bathymetry data were collected along continuous boat tracks at a 2 second sample interval. Pre-dam topography was digitized from archival survey records. Bathymetric and elevation models were created at 5-meter grid cell, and the models differenced to calculate sediment thickness and volume.

Process_Date: 20030810

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jonathan R. Childs

Contact_Organization:

United States Geological Survey (USGS) Coastal and Marine Geology (CMG)

Contact_Position: Geophysicist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS, MailStop 999, 345 Middlefield Road

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025-3561

Country: USA

Contact_Voice_Telephone: (650) 329-5195

Contact_Electronic_Mail_Address: jchilds@usgs.gov

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Geographic features (lake bathymetry, pre-dam topography, sediment thickness) are shown as color-contour map images at an unspecified projection and scale. These map images are rendered in Graphic Interchange Format (GIF).

Entity_and_Attribute_Detail_Citation: none

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

United States Geological Survey (USGS) Information Services

Contact_Address:

Address_Type: mailing and physical address

Address: Box 25286

City: Denver

State_or_Province: CO

Postal_Code: 80225

Country: USA

Contact_Voice_Telephone: (888)ASK-USGS

Distribution_Liability:

Please recognize the U.S. Geological Survey (USGS) as the source of this information.

USGS-authored or produced data and information are in the public domain.

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.

Neither the U.S. Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.

Trade, firm, or product names and other references to commercial products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Graphic Interchange Format (GIF)

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://geopubs.wr.usgs.gov/open-file/of03-383>

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20030810

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jonathan R. Childs

Contact_Organization:

United States Geological Survey (USGS) Coastal and Marine Geology (CMG)

Contact_Position: Geophysicist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS, MailStop 999, 345 Middlefield Road

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025-3561

Country: USA

Contact_Voice_Telephone: (650) 329-5195

Contact_Electronic_Mail_Address: jchilds@usgs.gov

Metadata_Standard_Name:

Content Standard for Digital Geospatial Metadata ("CSDGM version 2")

Metadata_Standard_Version: FGDC-STD-001-1998