World Urban Areas is a polygon theme representing the major urban areas of the world.
Purpose
World Urban Areas provides a base map layer for the major urban areas of the world.
Supplemental Information
Largest scale when displaying the data: 1:250,000.
Temporal Extent
Currentness Reference
publication date
Time Instant
2010
Bounding Box
West
-175.214133
East
178.468749
North
69.365621
South
-53.184814
Theme Keyword
polygon
urban areas
cities
location
boundaries
Theme Keyword Thesaurus
None
Place Keyword
World
Place Keyword Thesaurus
None
Temporal Keyword
2010
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
Annually
Point of Contact
Contact Organization
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
7:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; Esri ArcCatalog 9.3.1.3500
Data Quality Information
Attribute Accuracy Report
All data has been reviewed for correct application of attributes and is accurate to current conditions.
Logical Consistency Report
The shapefile is converted to SDC (Smart Data Compression) format using tools in ArcGIS. The SDC data set is then imported into a file geodatabase to verify, validate, and if needed repair the geometry.
Completeness Report
After processing, the data set is checked for drawing display and number of records and file sizes compared with source materials.
Horizontal Positional Accuracy Report
The level of detail for each feature is generally better than what is traditionally utilized in a 1:500,000 scale product. The positional accuracy is typical of a 1:100,000 scale map, or +/-50 meters 90% of the time.
Lineage
Source
Originator
DeLorme Publishing Company, Inc.
Publication Date
2010
Title
UrbanAreas, 2012
Geospatial Data Presentation Form
vector digital data
Series Information
Series Name
A subset of DeLorme World Base Map (DWBM).
Issue Identification
2010
Publication Information
Publication Place
Yarmouth, Maine, USA
Publisher
DeLorme Publishing Company, Inc.
Online Linkage
http://www.delorme.com/
Source Scale Denominator
1000000
Type of Source Media
DVD-ROM
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
2010
Source Currentness Reference
publication date
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
3637
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000000
Longitude Resolution
0.000000
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_WGS_1984
Ellipsoid Name
WGS_1984
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257224
Entity and Attribute Information
Entity Type
Entity Type Label
urban_area
Entity Type Definition
The polygons represent the major urban areas of the world.
Entity Type Definition Source
Esri
Attributes
ObjectID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
Esri
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
Esri
Name
The urban area name. If more than one feature exists with an urban extent, the populated place point with the higher RANK value is used to name the urban area. (Names for the features.)
Definition Source
DeLorme Publishing Company, Inc.
RANK
The rank of the urban area based on its Level of Importance. The lower the number, the more important the feature is. (1 to 4)
Definition Source
DeLorme Publishing Company, Inc.
Distribution Information
Format Name
SDC
Distributor
Esri; Esri Offices
Online Access
http://www.ArcGIS.com
Name
Metadata Reference Information
Metadata Date
20130205
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
Contact Voice Telephone
(212) 854-6012
Contact Electronic Mail Address
data@library.columbia.edu
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
