7.5-minute Digital Elevation Model (10 meter resolution Grid)

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: U.S. Geological Survey EROS Data Center

Publication_Date: 1999

Title: 7.5-minute Digital Elevation Model (10 meter resolution Grid)

Publication_Information:

Publication_Place: Sioux Falls, SD

Publisher: U. S. Geological Survey

Online_Linkage: <URL:http://www.sdvc.uwyo.edu/24k/dem10.html>

Online_Linkage: <URL:http://edcwww.cr.usgs.gov/glis/hyper/guide/usgs_dem>

Description:

Abstract:

USGS Digital Elevation Model (DEM) data files are digital representations of cartographic information in a raster form. DEMs consist of a sampled array of elevations for a number of ground positions at regularly spaced intervals. These digital cartographic/geographic data files are produced by the U.S. Geological Survey (USGS) as part of the National Mapping Program.

Purpose:

Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1999

Ending_Date: 2001

Currentness_Reference: publication date of source maps

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -111.36

East_Bounding_Coordinate: -104

North_Bounding_Coordinate: 45.0

South_Bounding_Coordinate: 41.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: DEM

Theme_Keyword: 10 meter

Theme_Keyword: digital elevation model

Theme_Keyword: digital terrain model

Theme_Keyword: hypsography

Theme_Keyword: altitude

Theme_Keyword: height

Theme_Keyword: contour line

Theme_Keyword: digital contours

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: CMGP

Theme_Keyword: Woods Hole Field Center

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Wyoming

Place_Keyword: North America

Place_Keyword: United States

Access_Constraints: None

Use_Constraints: None.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Data Manager

Contact_Organization: Spatial Data and Visualization Center

Contact_Address:

Address_Type: mailing address

Address: Box 4008 University Station

City: Laramie

State_or_Province: Wyoming

Postal_Code: 82071

Country: USA

Contact_Voice_Telephone: 307-766-2751

Contact_Electronic_Mail_Address: n/a

Hours_of_Service: 8:00 - 5:00 MST

Native_Data_Set_Environment:

Stored in USGS DEM format and in Arc/Info 7.04 software as an export (.e00) file.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: not yet available

Logical_Consistency_Report: not yet available

Completeness_Report: not yet available

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Not available yet. Assumed to be the most accurate of all the USGS DEM products

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: not available yet

Lineage:

Process_Step:

Process_Description:

Digital Elevation Model (10 meter resolution) were downloaded from www.MapMart.com (originating at USGS EROS Date Center) in SDTS data format in UTM, referenced to NAD 27, Clarke 1866. These data were then converted to ESRI ArcGIS GRID format using the SDTS conversion tool within ESRI ArcGIS Toolbox. The grids were then reprojected from UTM, NAD27 to UTM, NAD83. Twelve quadrangles were downloaded: Meadowville, Laketown, Sage Creek, Garden City, Bear Lake South, Sheppen Creek, Saint Charles, Bear Lake North, Pegrem Creek, Paris, Dingle, and Pegrem. The ESRI ArcGIS MERGE command was used to merged all of the reprojected grids into one composite grid. The ESRI ArcGrid command, sample, was then used to export the composite grid as an x,y,z file.

Process_Date: 2003

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: raster

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 12

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: .09996

Longitude_of_Central_Meridian: -111

Latitude_of_Projection_Origin: 0.0

False_Easting: 0.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 10

Ordinate_Resolution: 10

Planar_Distance_Units: meters

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The digital elevation model is composed of a 6- character integer raster representing a gridded form of a topographic map hypsography overlay, with a value in meters. In Wyoming, elevations range from approximately 900-4200 meters.

Entity_and_Attribute_Detail_Citation:

U.S.Department of the Interior, U.S. Geological Survey, 1992, Standards for digital elevation models: Reston, VA,

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Data Manager

Contact_Organization: Spatial Data and Visualization Center

Contact_Address:

Address_Type: mailing address

Address: Box 4008 University Station

City: Laramie

State_or_Province: Wyoming

Country: USA

Postal_Code: 82071

Contact_Voice_Telephone: 307-766-2751

Contact_Electronic_Mail_Address: n/a

Distribution_Liability:

The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate used described in this metadata document.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE (Arc/Info export)

Format_Version_Number: 7.0.4

Format_Version_Date: 1995

File_Decompression_Technique: Export file was created using defaults, no compression

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: ftp.sdvc.uwyo.edu or <http://www.sdvc.uwyo.edu/clearinghouse>

Access_Instructions: <http://www.sdvc.uwyo.edu/clearinghouse/howto.html>

Online_Computer_and_Operating_System:

Both the ftp and WWW server which this data is available from is a Silicon Graphics Challenge server, running the IRIX 6.2 UNIX operating system.

Fees:

No fees are required for downloading the data that is on-line. Some fees may be required to cover costs of tapes if data is required on tape media.

Metadata_Reference_Information:

Metadata_Date: 20000831

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Margo Berendsen

Contact_Address:

Address_Type: mailing address

Address: Box 4008 University Station

City: Laramie

State_or_Province: Wyoming

Postal_Code: 82071

Country: USA

Contact_Voice_Telephone: 307-766-2751

Contact_Electronic_Mail_Address: meh@uwyo.edu

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998