Section 1	Identification Information
Originator	Natural Resource Research Institute
Title	City Lights at Night
Abstract	Data set contains view of stable lights images for the upper great lakes area. The Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has a unique capability to detect low levels of visible - near infrared (VNIR) radiance at night. With the OLS VIS band data it is possible to detect clouds illuminated by moonlight, plus lights from cities, towns, industrial sites, gas flares, and ephemeral events such as fires and lightning illuminated clouds. This paper presents methods which have been developed for detecting and geolocating VNIR emission sources with nighttime DMSP-OLS data and the analysis of image time series to identify spatially stable emissions from cities, towns and industrial sites. Results are presented for the USA and Canada.
Purpose	A base data layer
Time Period of Content Date	1994
Currentness Reference	Ground condition
Progress	Complete
Maintenance and Update Frequency	As needed
Spatial Extent of Data	All states and provinces being part of a 50 km buffer of the Lake Superior Drainage Basin. This includes parts of Michigan, Wisconsin, Minnesota, and Ontario, Canada.
Bounding Coordinates	-97.293 -81.564 49.255 41.573
Place Keywords	Michigan, Minnesota, Wisconsin, Ontario, Canada, Lake Superior
Theme Keywords	Lake Superior Drainage Basin,
Theme Keyword Thesaurus	None
Access Constraints
Use Constraints
Contact Person Information	Mark White, Research Fellow Natural Resource Research Institute 5013 Miller Trunk Highway Duluth, Minnesota 55811 Phone: (218)-720-2710 FAX: (218)-720-4328 E-mail: mwhite@sage.nrri.umn.edu
Browse Graphic File Name	none available
Browse Graphic File Description
Associated Data Sets
Section 2	Data Quality Information - - - - - - Go back to top
Attribute Accuracy	Not available
Logical Consistency	Not available
Completeness	Not available
Horizontal Positional Accuracy	Not available
Vertical Positional Accuracy	Not applicable
Lineage	Not available
Source Scale Denominator
Section 3	Spatial Data Organization Information - - - - - - Go back to top
Native Data Set Environment	Arc/INFO 7.1.2
Geographic Reference for Tabular Data
Spatial Object Type	Raster
Vendor Specific Object Types
Tiling Scheme	None
Section 4	Spatial Reference Information - - - - - - Go back to top
Horizontal Coordinate Scheme	Geographic (Lat. Long.)
Ellipsoid
Horizontal Datum
Horizontal Units
Distance Resolution
Cell Width	787.4555
Cell Height	787.4555
Map Projection Name	Albers Equal Area
Map Projection Parameters	Standard Parallel: 29.5 Standard Parallel: 45.5 Longitude Of Central Meridian: -96 Latitude Of Projection Origin: 23 False Easting: 0 False Northing: 0
Other Coordinate System's Definition	Planar Coordinate Encoding Method: Coordinate Pair Abscissa Resolution: 1 Ordinate Resolution: 1 Semi-Major Axis: 6378206.4 Denominator of Flattening Ratio: 294.98
Section 5	Entity and Attribute Information - - - - - - Go back to top
Entity and Attribute Overview	The only entities and attributes would be visible near infrared reflectance values. This is due to the nature of the data set (grid).
Entity and Attribute Detailed Citation	More information can be found in 'Mapping City Lights with Nightime Data From the DMSP Operational Linescan System,' www.julius.ngdc.noaa.gov
Section 6	Distribution Information - - - - - - Go back to top
Publisher	Natural Resources Research Institute
Publication Date
Contact Person Information	Gerald Sjerven, GIS Specialist Natural Resources Research Institute 5013 Miller Trunk Hwy Duluth, Minnesota 55811 Phone: (218)-720-4388 FAX: (218)-720-4328 E-mail: gsjerven@sage.nrri.umn.edu
Distributor's Data Set Identifier
Distribution Liability	No warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The University of Minnesota shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Transfer Format Name	Arc/INFO export
Transfer Format Version Number
Transfer Size
Ordering Instructions
Online Linkage	Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
Section 7	Metadata Reference Information - - - - - - Go back to top
Metadata Date	08/25/1999
Contact Person Information	Joel Nelson, GIS Intern Natural Resource Research Institute 5013 Miller Trunk Highway Duluth, Minnesota 55811 Phone: (218)-720-4254 FAX: (218)-720-4328 E-mail: jnelson@sage.nrri.umn.edu
Metadata Standard Name	Minnesota Geographic Metadata Guidelines
Metadata Standard Version	2.01
Metadata Standard Online Linkage	http://www.lmic.state.mn.us/gc/stds/metadata.htm

Go back to top