GIS Library Contents - Metadata Urban Interface

This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive name		Urban Interface
File name		urbnlite
Spatial domain		Pima County
Abstract		Urbnlite shows urbanized areas as determined by nighttime lights. It was derived from the NOAA city lights layer (2001). The data layer was masked with a water bodies layer. Stan Wilds, srwilds@usgs.gov, has more detail. See more information.
Known errors/qualifications		It appears that light blooming may limit the usefulness of this layer at Pima County scale. This is the same Urban Interface as found on the map at the GeoMAC site at http://www.geomac.gov
Feature type		polygon
Feature count		34
Thumbnail Map		urbnlite.pdf    (425,505 bytes, PDF created 07/21/2022 )
Projection		NAD83 HPGN (Parameters)
Rectification		unknown
Field/value metadata		Field metadata
Source organization		USGS/National Mapping Division
Source contact		Elizabeth Lile, ellile@usgs.gov
Source document or file name		urban.shp
Source date		2001
Source scale
Source format		Shape
Date of last data update (This date may not be current.)		20030115
Last data update by		John Regan
Date/time last touched - Meaning?		2021-01-07  10:56 PM - Enterprise GDB
		2021-01-07  10:37 PM - Shapefile - Library input format
		See coverage files, if any, for date.
Lineage
On maintenance?		No
Maintenance organization
Maintenance description
Original conversion by		USGS/National Mapping Division
Pima County ITD GIS contact		John Dickinson
Alternate Pima County ITD GIS contact
On  Pima County Geospatial Data Portal?		No

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