Digital Bathymetric Model of Mono Lake, California

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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: Christian G. Raumann
Originator: Scott Stine
Originator: Alexander Evans
Originator: Jerry Wilson
Publication_Date: 2002
Title: Digital Bathymetric Model of Mono Lake, California
Geospatial_Data_Presentation_Form: ArcInfo GRID
Series_Information:

Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map
Issue_Identification: MF-2393

Online_Linkage: http://pubs.usgs.gov/mf/2002/2393/

Description:

Abstract:

In 1986 and 1987, Pelagos Corporation of San Diego (now Racal Pelagos) undertook a bathymetric survey of Mono Lake in eastern California for the Los Angeles Department of Water and Power (DWP). The result of that survey was a series of maps at various scales and contour intervals. From these maps, the DWP hoped to predict consequences of the drop in lake level that resulted from their diversion of streams in the Mono Basin. No digital models, including shaded-relief and perspective-view renderings, were made from the data collected during the survey. With the permission of Pelagos Corporation and DWP, these data are used to produce a digital model of the floor of Mono Lake. The model was created using a geographic information system (GIS) to incorporate these data with new observations and measurements made in the field. This model should prove to be a valuable tool for enhanced visualization and analyses of the floor of Mono Lake.

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: USGS Thesaurus
Theme_Keyword: geomorphology
Theme_Keyword: land surface characteristics
Theme_Keyword: sonar methods
Theme_Keyword: bathymetry
Theme_Keyword: maps and atlases
Theme_Keyword: geospatial datasets

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: none
Place_Keyword: California
Place_Keyword: CA
Place_Keyword: Mono Lake
Place_Keyword: USA

Place:

Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: f06051 = Mono

Access_Constraints: None
Use_Constraints:

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

Browse_Graphic:

Browse_Graphic_File_Name: http://pubs.usgs.gov/mf/2002/2393/mono_thumbs.jpg
Browse_Graphic_File_Description:

Reduced-size image of the map sheets, 633x260 pixels, 105k bytes.

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.1.649

Data_Quality_Information:

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: 2.0 meters

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.

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.

Process_Step:

Process_Description: Creation of original metadata record
Process_Date: 20020610
Process_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

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
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:

Abscissa_Resolution: 10.0
Ordinate_Resolution: 10.0

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:

Entity_Type:

Entity_Type_Label: Grid cell
Entity_Type_Definition: Estimated bathymetry of the area subtended by the cell

Attribute:

Attribute_Label: elevation
Attribute_Definition: Elevation in feet above mean sea level
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6228.533
Range_Domain_Maximum: 6390.000
Attribute_Units_of_Measure: feet

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
Format_Information_Content: Bathymetric grid
File_Decompression_Technique: unzip
Transfer_Size: 47

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://pubs.usgs.gov/mf/2002/2393/monobathy.zip

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20160613
Metadata_Review_Date: 20030211
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Peter N Schweitzer
Contact_Organization: USGS Midwest Area

Contact_Position:

Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/

Contact_Address:

Address_Type: mailing address
Address:

Mail Stop 954
12201 Sunrise Valley Dr

City: Reston
State_or_Province: VA
Postal_Code: 20192-0002
Country: USA

Contact_Voice_Telephone: 703-648-6533
Contact_Facsimile_Telephone: 703-648-6252
Contact_Electronic_Mail_Address: pschweitzer@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://geo-nsdi.er.usgs.gov/metadata/map-mf/2393/metadata.html>