National Elevation Database, N38 W115 (NEVADA)

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Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS), EROS Data Center
Publication_Date: 1999
Title: National Elevation Database, N38 W115 (NEVADA)
Edition: 1
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage: <http://keck.library.unr.edu/data/neds/38115.htm>
Description:
Abstract:
The U.S. Geological Survey has developed a National Elevation Database (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives.

If you'd like to download the NED data for this area (SE corner: N38 W115) from the Keck Earth Science and Mining Research Center (served by the University of Nevada, Reno library system), follow this link: <http://keck.library.unr.edu/data/neds/38115.htm>

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: 19990201
Ending_Date: Unknown
Currentness_Reference: publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 116.000
East_Bounding_Coordinate: 115.000
North_Bounding_Coordinate: 39.000
South_Bounding_Coordinate: 38.000
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD Parameter Keywords
Theme_Keyword: EARTH SCIENCE
Theme_Keyword: LAND SURFACE
Theme_Keyword: TOPOGRAPHY
Theme_Keyword: LANDFORMS
Theme_Keyword: TERRAIN ELEVATION
Theme_Keyword: 1-DEGREE DEM
Theme_Keyword: 2-ARC-SECOND DEM
Theme_Keyword: 7.5-MINUTE DEM
Theme_Keyword: CARTOGRAPHY
Theme_Keyword: DEM
Theme_Keyword: DIGITAL ELEVATION MODEL
Theme_Keyword: DIGITAL MAPPING
Theme_Keyword: EDC
Theme_Keyword: EROS
Theme_Keyword: GEODATA
Theme_Keyword: GIS
Theme_Keyword: MAPPING
Theme_Keyword: RASTER
Theme_Keyword: USGS
Place:
Place_Keyword_Thesaurus: GCMD Location Keywords
Place_Keyword: NORTH AMERICA
Place_Keyword: UNITED STATES
Place_Keyword: UNITED STATES OF AMERICA
Place_Keyword: NEVADA
Access_Constraints: None
Use_Constraints:
None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Customer Services Representative
Contact_Organization: EROS Data Center
Contact_Address:
Address_Type: mailing and physical address
Address:
U.S. Geological Survey EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6151
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Resource_Description: National Elevation Database (NED)
Distribution_Liability:
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, EROS Data Center, no warranty expressed or implied is made by either regarding the utility of the data on any system, nor shall the act of distribution constitute any such warranty. The USGS will warrant the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustments of credit must be made within 90 days from the date of this shipment from the ordering site.
Metadata_Reference_Information:
Metadata_Date: 19990211
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Customer Services Representative
Contact_Organization: EROS Data Center
Contact_Address:
Address_Type: mailing and physical address
Address:
U.S. Geological Survey EROS Data Center
City: Sioux Falls
State_or_Province: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605-594-6151
Contact_Facsimile_Telephone: 605-594-6589
Contact_Electronic_Mail_Address: custserv@edcmail.cr.usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:
FGDC-STD-001-1998

Description of source data:

NED tiles are stored as arc/info grids. Each tile covers a 1x1 degree area of the earth's surface.

Example Grid information: dem10148

Cell size: one arc-second Data type: Floating Point Number of rows: 3600 Number of columns: 3600 Projection: Geographic Datum: NAD83 Units: Decimal Degrees Zunits: Meters Spheroid: GRS1980

VIEWING Tiles:

No software for viewing NED tiles are included on this disc. Free software for viewing other USGS digital cartographic data are available at the following internet sites:

dlgv32 is Windows95/NT software for viewing a variety of USGS geospatial data including GeoTIFF Tiles. <http://mcmcweb.er.usgs.gov/viewers/dlg_view.html>

Arc Explorer is a free lightweight GIS data explorer developed by ESRI. <http://www.esri.com/software/arcexplorer/index.html>

PCI Freeware Handler is an application for viewing, enhancing and examining remotely sensed imagery such as LANDSAT, SPOT, RADARSAT, ERS-1, NOAA AVHRR, aerial photography. The Freeware Handler is freeware, and is offered by PCI to the remote sensing community as a public service. <http://www.pcigeomatics.com/downl.html#FREEWARE>

Generated by mp version 2.4.38 on Fri Jul 20 11:43:20 2001