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: 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: 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