This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

Digtial Elevation Model (DEM) 250K

Metadata Updated: May 17, 2013

Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a regular array of elevations cast on a designated coordinate projection system. The DEM data are stored as a series of profiles in which the spacing of the elevations along and between each profile is in regular whole number intervals. The normal orientation of data is by columns and rows. Each column contains a series of elevations ordered from south to north with the order of the columns from west to east. The DEM is formatted as one ASCII header record (A-record), followed by a series of profile records (B-records) each of which include a short B-record header followed by a series of ASCII integer elevations per each profile. The last physical record of the DEM is an accuracy record (C-record). 1-degree DEM (3- by 3-arc second data spacing). Provides coverage in 1- by 1-degree blocks. Two products (three in some regions of Alaska) provide the same coverage as a standard USGS 1- by 2-degree quadrangle. The basic elevation model is produced by or for the Defense Mapping Agency (DMA), but is distributed by the USGS in the DEM data record format. Coverage is for the United States.

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

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Dates

Metadata Date February 11, 1997
Metadata Created Date March 14, 2013
Metadata Updated Date May 17, 2013
Reference Date(s) (publication)
Frequency Of Update irregular

Additional Metadata

Resource Type Dataset
Metadata Date February 11, 1997
Metadata Created Date March 14, 2013
Metadata Updated Date May 17, 2013
Reference Date(s) (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data., Access Constraints: None
Bbox East Long -94.0
Bbox North Lat 41.0
Bbox South Lat 36.0
Bbox West Long -104.0
Coupled Resource
Frequency Of Update irregular
Guid
Licence The State of Kansas Geographic Information Systems Core Database's digital data have been tested and their documentation carefully reviewed. However, the State of Kansas Geographic Information Systems Policy Board's Data Access and Support Center and its representatives make no warranty or representation, either expressed or implied, with respect to the digital data and their documentation, their quality, performance, merchantability, or fitness for a particular purpose. The digital data are distributed on "as is" basis, and the user assumes all risk to their quality, the results obtained from their use, and the performance of the data. In no event will the State of Kansas Geographic Information Systems Policy Board or its representatives be liable for any direct, indirect, special, incidental or consequential damages resulting from and defect in the State of Kansas Geographic Information Systems Core Database`s digital data or in their documentation. This disclaimer of warranty is exclusive and in lieu of all others, oral or written, express or implied. No agent or employee is authorized to make any modification, extension, or addition to this warranty.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System
Temporal Extent Begin 1979-10-00
Temporal Extent End 1990-03-31

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