Metadata:
  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: 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
      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, version 1.0
        Place_Keyword: 06051 = Mono
    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.
    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.
  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 megabytes
        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: 20020610
    Metadata_Review_Date: 20030211
    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: Content Standard for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998