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LANDSCAN 2001 GLOBAL POPULATION DATABASE

DESCRIPTION
This archive contains the alpha release of Oak Ridge National Laboratory's LandScan 2001 Global Population Database. Documentation for the data is available at: http://www.ornl.gov/gist/projects/LandScan/landscan_doc.htm.

Updates and corrections may still be made. If you should discover any problems or errors, please inform us at LandScan User Services.

The archive contains grids for the world and each of the six continents, excluding Antarctica. Each of the zip files contains two folders, an ArcInfo GRID folder and an INFO folder. Both folders must be extracted from the zip file into one new folder.

DOWNLOADING DATA
The files can be downloaded via the World Wide Web at www.ornl.gov/gist/. Please note that LandScan users will be required to register using an electronic form before they can access the data.

Downloaded files need to be uncompressed using a standard Zip utility (e.g., WinZip, PKZIP, etc.) before they can be imported to ArcView or ArcInfo. Users should expect a substantial increase in the size of downloaded data after uncompression. Compressed and uncompressed file sizes for each of the continents are shown below.

Filename

Compressed size (Mbytes)

Uncompressed (Mbytes)

Africa

17.6

40

N. America

10.8

26

Oceania

13.5

29

Asia

32.6

70

Europe

10.9

24

S. America

8.7

20

World

75.9

171

DATA RESTRICTIONS
These data are for noncommercial use only. No third party distribution of all, or parts, of the electronic files is authorized.

DATA ERRORS, CORRECTIONS AND QUALITY ASSESSMENT
ORNL follows procedures designed to ensure that LandScan data are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact LandScan User Services via e-mail. ORNL does not guarantee the accuracy, reliability, or completeness of any data provided.

NO WARRANTY OR LIABILITY
ORNL provides these data without any warranty of any kind whatsoever, either express or implied. ORNL shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by ORNL.

ACKNOWLEDGMENT AND CITATION
LandScan 2001 was developed by Oak Ridge National Laboratory with funding from the Department of Defense. The authors wish to thank all those who contributed to the ancillary databases on whose quality and availability LandScan relies. For further information please see:

         Bhaduri, Budhendra, Edward Bright, Phillip Coleman, and Jerome Dobson, April 2002. LandScan: Locating People is What Matters. Geoinformatics Vol. 5, Number 2, pp. 34-37.

         Dobson, J. E., E. A. Bright, P. R. Coleman, R.C. Durfee, B. A. Worley. 2000. LandScan: A Global Population Database for Estimating Populations at Risk, Photogrammetric Engineering & Remote Sensing Vol. 66, No. 7, July 2000, pp. 849-857.

For users who download the data from this site, we recommend the following citation:

 

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