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United States Designated Market Areas, 2002
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- Geographic Data Technology, Inc. (GDT)
- Originator
- Environmental Systems Research Institute, Inc. (ESRI)
- Publication Date
- 2002
- Title
- United States Designated Market Areas, 2002
- Edition
- 2002
- Geospatial Data Presentation Form
- vector digital data
- Series Information
- Series Name
- ESRI Data Maps
- Issue Identification
- 2002
- Publication Information
- Publication Place
- Redlands, California, USA
- Publisher
- Environmental Systems Research Institute, Inc. (ESRI)
- Other Citation Details
- Location: ESRI Data Maps 2002 (CD 2) \usa
- Online Linkage
- https://www1.columbia.edu/sec/acis/eds/dgate/studies/C1301/data/esri_2002_usa_dma.zip
- Abstract
- United States Designated Market Areas is a polygon theme representing groups of surrounding counties or split counties (by five-digit ZIP) in which metropolitan central area commercial TV stations achieve the largest audience share. DMAs are designed by A.C. Nielsen and define non-overlapping geography for planning, buying, and evaluating television audiences across various U.S. markets.
- Purpose
- For educational, non-commercial purposes.
- Supplemental Information
- Largest scale when displaying the data: 1:100,000.
- Temporal Extent
- Currentness Reference
- ground condition
- Time Instant
- 2000
- Bounding Box
- West
- -178.219143
- East
- 179.768243
- North
- 71.378784
- South
- 18.910507
- Theme Keyword
- marketing
- television
- audience share
- market share
- economy
- Nielson
- Theme Keyword Thesaurus
- None
- Theme Keyword
- society
- boundaries
- Theme Keyword Thesaurus
- ISO 19115 Topic Categories..
- Place Keyword
- United States
- Place Keyword Thesaurus
- Library of Congress Subject Headings
- Temporal Keyword
- 2000
- Temporal Keyword Thesaurus
- None
- Access Restrictions
- For current Columbia affiliates only.
- Use Restrictions
- For educational, non-commercial use only.
- Status
- Complete
- Maintenance and Update Frequency
- Matches software update releases
- Point of Contact
- Contact Organization
- Environmental Systems Research Institute, Inc. (ESRI)
- Delivery Point
- 380 New York Street
- City
- Redlands
- State
- California
- Postal Code
- 92373-8100
- Country
- USA
- Contact Telephone
- 909-793-2853
- Contact Facsimile Telephone
- 909-793-5953
- Contact Electronic Mail Address
- info@esri.com
- Hours of Service
- 8:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
- Credit
- A.C. Nielsen?
- Native Data Set Environment
- Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.3.679
- Data Quality Information
- Logical Consistency Report
- No duplicate features are present.
- Completeness Report
- After processing, the data set is checked for drawing display and number of records and file sizes compared with source materials. When political boundaries extend into water, the coded boundary line follows the shoreline, creating a visible landmark. Any extensions of political boundaries into water areas are not represented.
- Horizontal Positional Accuracy Report
- The geospatial part of this data set was extracted from the 2000 Census Version TIGER/Line files (CD-ROM edition) then generalized to 1,000 points per polygon and 4,000 points per feature. Generalization was applied only to those polygons requiring it, so the polygons not generalized have the same positional accuracy as the TIGER/Line coordinates and the generalized polygons have less positional accuracy. The positional accuracy of the TIGER/Line coordinates varies with the source materials used but at best meets the established National Map Accuracy standards (+/- 167 feet approximately) where 1:100,000-scale maps from the USGS are the source. The Census Bureau cannot specify the accuracy of feature updates added by its field staff or of features derived from the GBF/DIME-Files or other map sources. Thus, the level of positional accuracy in the TIGER/Line files is not suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface.
- Lineage
- Source
- Originator
- Geographic Data Technology, Inc.
- Publication Date
- 200104
- Title
- Dynamap/DMA Boundary and Inventory Files 1.8
- Edition
- Version 1.8
- Geospatial Data Presentation Form
- vector digital data
- Series Information
- Series Name
- Dynamap/DMA Boundary and Inventory Files
- Issue Identification
- v1.8
- Publication Information
- Publication Place
- Lebanon, New Hampshire, USA
- Publisher
- Geographic Data Technology, Inc
- Source Scale Denominator
- 100000
- Type of Source Media
- CD-ROM
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 2000
- Source Currentness Reference
- ground condition
- Contribution
- Attribute and geospatial data
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- G-polygon
- Point and Vector Object Count
- 211
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000001
- Longitude Resolution
- 0.000001
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- North American Datum of 1983
- Ellipsoid Name
- Geodetic Reference System 80
- Semi-major Axis
- 6378137.000000
- Denominator of Flattening Ratio
- 298.257222
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- dma
- Entity Type Definition
- The polygons represent non-overlapping geography for planning, buying, and evaluating television audiences across various U.S. markets.
- Entity Type Definition Source
- A.C. Nielsen; Geographic Data Technology, Inc.
- Attributes
- FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Shape
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- DMA
- The unique identification of the Designated Market Area Code that corresponds to the DMA Market Production Codes. (DMA Market Production CodesA.C. Nielsen)
- Definition Source
- A.C. Nielsen
- NAME
- The name/identification for the Designated Market Area. (DMA Market Production Codes namesA.C. Nielsen)
- Definition Source
- A.C. Nielsen
- Distribution Information
- Format Name
- SHP
- Distributor
- Environmental Systems Research Institute, Inc. (ESRI); ESRI International Distributors
- Name
- Metadata Reference Information
- Metadata Date
- 20080225
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Research Data Services (RDS), Columbia University Libraries.
- Contact Person
- GIS/Metadata Librarian
- Contact Address
- Address
- 420 W. 118th St. 215 IAB, MC 3301
- City
- New York
- State or Province
- NY
- Postal Code
- 10027
- Country
- USA
- Contact Voice Telephone
- (212) 854-6012
- Contact Electronic Mail Address
- data@library.columbia.edu
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
