::Identification info
 

Title Sub-National Political Boundaries 2008 (ISciences)
Date 2008-09-23 (creation)
Presentation form Map Digital
Language en
Character set Utf8
Abstract (See also: National Political Boundaries 2008.) The Sub-National Political Boundaries map identifies nearly 3000 unique sub-national administrative entities. In most cases sub-national boundaries are 1st-level administrative units (states and provinces). The Sub-National Political Boundaries map is derived from many sources, rigorously researched in order to use best available sources for each country. All boundaries are derived from open sources or from copyrighted sources in a manner to protect respective interests. Sources include World Factbook 2006 (CIA) and United Nations Second Administrative Level Boundaries (SALB) project (ongoing).
Supplemental Information Raster maps are currently available; vector data will be available soon. System requirement: To use the data files (*.xtvm) you must have TerraViva!® Global Data Viewer or TerraViva!® Global Data Analyst software installed. A free copy of TerraViva!® Global Data Viewer is available at www.terraviva.net. Data is accessible through a free software upgrade. Once TerraViva! software is installed, you'll be prompted to accept the upgrade the next time you run the program. Raster data: A 30 arc second map (approximate scale 1:3,500,000) is available through the automatic software upgrade. Additional maps at 1 arc second (approximate scale 1:120,000) and 3 arc seconds (approximate scale 1:350,000) are available upon request to: info@terraviva.net. Vector data: Files at 1 arc second, 3 arc seconds, and 30 arc seconds will be available soon. For more information about this data see TerraViva!® Map Guide in "Distribution Info>Data for Download." See also the companion map National Political Boundaries 2008.
Purpose The purpose of this map is to provide accurate and current sub-national geo-political boundaries. It is difficult to obtain accurate information for many countries. A detailed search of various sources including web sites, academic experts, consulates and others enabled improvement of a number of regions. While this process is ongoing, sources consulted to date are detailed in the TerraViva!® Map Guide (see "Distribution Info>Data for Download" below).
Status On Going
Topic category Boundaries
Descriptive keywords TerraViva, sub-national, subnational, boundaries, LandScan, ORNL, political, 2008 (theme).
Descriptive keywords World (place).
Spatial representation type 
::Equivalent scale
 
Denominator 120,000
 
::Geographic box
 
North bound latitude
90
West bound longitude
-180
East bound longitude
180
South bound latitude
-90
 
::Extent
 
Begin date 2000-01-02T12:00:00
End date 2008-09-23T00:00:00
 
Access constraints 
Use constraints License
Other constraints CITATION: "National and SubNational Political Boundaries 2008 dataset. ISCIENCES, L.L.C."
Maintenance and update frequency As Needed
::Point of contact
 
Individual name Steve Metzler
Organisation name ISCIENCES, L.L.C.
Position name Research Scientist
Role Originator
Voice +734.214-9810
Facsimile +734-214-9813
Delivery point 2155 Jackson Avenue
City Ann Arbor
Administrative area Michigan
Postal code 48103
Country United States
Electronic mail address smetzler@isciences.com
 
 
::Distribution info
 
OnLine resource http://www.terraviva.net
Data for download TerraViva!® Map Guide: Political Boundaries
OnLine resource Note on Boundary Disputes (ISciences/TerraViva!)
 
::Spatial representation info
 
Number of dimensions 2
Dimension name Row
Dimension size 648,000
Dimension name Column
Dimension size 1,296,000
Dimension name 
Cell geometry 
 
::Reference system info
 
Code WGS 1984
 
::Data quality info
 
Hierarchy level Dataset
Statement Boundaries are extracted from the LandScan dataset produced by Oak Ridge National Laboratories (ORNL), along with many other sources. For more information see Appendix in TerraViva!® Map Guide: Political Boundaries, available as a pdf download in "OnLine Resource".
 
::Metadata
 
File identifier 88062280-6d10-11dc-b3fc-0013720f00b3
Language en
Character set Utf8
Date stamp 2008-10-08T08:32:01
Metadata standard name ISO 19115
Metadata standard version FDIS
::Metadata author
 
Individual name Lisa Emmer
Organisation name ISCIENCES, L.L.C.
Role Point Of Contact
Voice +1-734-214-9810
Facsimile +1-734-214-9813
Delivery point 2155 Jackson Avenue
City Ann Arbor
Administrative area Michigan
Postal code 48103
Country United States
Electronic mail address lemmer@isciences.com