Datasets > Milwaukee County > 1950-1999

National Elevation Dataset Milwaukee County, Wisconsin 1999

U.S. Geological Survey · 1999 Full Details

Full Details

Title
National Elevation Dataset Milwaukee County, Wisconsin 1999
Description
This ArcGrid data layer represents a National Elevation Dataset for Milwaukee County, Wisconsin in 1999. The dataset was originally published by the U.S. Geological Survey in 1999.[The U.S. Geological Survey has developed a National Elevation Dataset (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. The specifications for the NED 1 arc second and 1/3 arc second data are: Geographic coordinate system Horizontal datum of NAD83, except for AK which is NAD27 Vertical datum of NAVD88, except for AK which is NAVD29 Z units of meters]
Creator
U.S. Geological Survey
Temporal Coverage
1999
Date Issued
1999
Rights
Please see the UWM Libraries statement on Copyright and Digital Collections .[None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.], Although this data is being distributed by the American Geographical Society Library at the University of Wisconsin-Milwaukee Libraries, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials. [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.]
Access Rights
Public
Format
Raster Dataset
Language
English
Date Added
May 29, 2024
Provenance Statement
The metadata for this resource was harvested from GitHub at https://github.com/OpenGeoMetadata/edu.uwm on 2026-04-08.

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Cite and Reference

  • Citation
    U.S. Geological Survey (1999). National Elevation Dataset Milwaukee County, Wisconsin 1999. . https://geodiscovery.uwm.edu/catalog/ark:-77981-gmgs3x83k17 (dataset)
  • BTAA Geoportal Link

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