Digital Bathymetric Model of Mono Lake, California
(monobathy10)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: United States Geological Survey (USGS)
Originator: National Mapping Discipline (NMD)
Originator: Geographer (Christian G. Raumann)
Publication_Date: 2002
Title: monobathy10
Geospatial_Data_Presentation_Form: ArcInfo GRID
Series_Information:
Series_Name: Miscellaneous Field Studies Map
Issue_Identification: MF-2393
Online_Linkage: <http://geopubs.wr.usgs.gov/map-mf/mf2393/>
Description:
Abstract:
ArcInfo GRID format data generated from the a 1986 bathymetric survey of Mono Lake, California, conducted by Pelagos Corporation of San Diego, California, for the Los Angeles Department of Water and Power (DWP).
Purpose:
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display bathymetry data of Mono Lake, California.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1986
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -119.155169
East_Bounding_Coordinate: -118.901489
North_Bounding_Coordinate: 38.079551
South_Bounding_Coordinate: 37.937339
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Lake Morphology
Theme_Keyword: Hydrographically-Closed
Theme_Keyword: Terminal
Theme_Keyword: Acoustic
Theme_Keyword: Bathymetry
Theme_Keyword: Water Depth
Theme_Keyword: Lakefloor Topography
Theme_Keyword: Volcanics
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: California
Place_Keyword: CA
Place_Keyword: Mono Lake
Place_Keyword: USA
Access_Constraints: None
Use_Constraints:
These data not intended for navigational purposes.

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, contractors, or subcontractors, 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 non-USGS 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.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christian G. Raumann
Contact_Organization: United States Geological Survey (USGS)
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road, Mail Stop 531
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5648
Contact_Facsimile_Telephone: (650) 329-4429
Contact_Electronic_Mail_Address: craumann@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.1.649

Data_Quality_Information:
Logical_Consistency_Report: Unspecified
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
2.0 meters. Please see text of Miscellaneous Field Investigation MF-2393.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
According to the Pelagos report, the Raytheon echo sounder used had an accuracy of 0.06 meters (0.2 feet) and their digitizing system had an accuracy of 0.08 meters (0.25 feet). Their field calibration steps were designed to meet or exceed the manufacturer's stated accuracy, bringing accuracy of depth measurements to within than 0.15 meters (0.5 feet).

The ArcInfo GRID was generated from digitized contours of the hard-copy maps and not the actual 29,650 survey points. Therefore, the accuracy of the ArcInfo GRID relies upon the original cartography work done by Pelagos and the data processing performed thereafter. Additional information can be found in the text of Miscellaneous Field Investigation MF-2393.

Lineage:
Process_Step:
Process_Description:
The survey data were collected along approximately 1,020 kilometers of sounding lines using two 24-foot boats, each equipped with an echo sounder, sub-bottom profiler (boomer-type system), sidescan sonar, and electronic navigation system. Water depths were measured by survey-grade echo sounders every 15 meters along each survey line, and recorded onto floppy disk along with the position data. The data was then transferred into a VAX-11/780 VMS mini-computer for editing and digitizing by a Science Accessories Model GP8 sonic digitizer. A total of 29,650 depth points were used to construct the bathymetric portion of the hard-copy topographic maps, which were then digitized and then this digital contour data was processed and the ArcInfo GRID was generated. Additional information concerning data processing can be found in the text of Miscellaneous Field Investigation MF-2393.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christian G. Raumann
Contact_Organization: United States Geological Survey (USGS)
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road, Mail Stop 531
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5648
Contact_Facsimile_Telephone: (650) 329-4429
Contact_Electronic_Mail_Address: craumann@usgs.gov

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 1531
Column_Count: 2195
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -117.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 10.000000
Ordinate_Resolution: 10.000000
Planar_Distance_Units: meters
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:
Attribute:
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6228.533
Range_Domain_Maximum: 6390.000
Attribute_Units_of_Measure: elevation in feet above mean sea level

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: United States Geological Survey (USGS)
Contact_Organization: Information Services
Contact_Address:
Address_Type: mailing address
Address: Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: (888) ASK-USGS
Distribution_Liability:
These data not intended for navigational purposes.

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, contractors, or subcontractors, 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 non-USGS 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: ArcInfo GRID
Format_Version_Number: 8.1
Transfer_Size: 47 megabytes
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://geopubs.wr.usgs.gov/map-mf/mf2393/>
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20020610
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christian G. Raumann
Contact_Organization: United States Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road, Mail Stop 531
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5648
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

Generated by mp version 2.7.3 on Mon Jun 10 11:13:43 2002