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International Water Event Database: 1950-2008

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This International Water Events Database is a searchable database documenting over 6400 historical international water relations from 1948 to 2008. Events in the database concern water as a scarce or consumable resource or as a quantity to be managed. Event information includes the basins and countries involved, date occurred, issue area, BAR Scale (Water Event Intensity Scale) rating, and a detailed summary of the event. For more information about the methodology behind the compilation of this database, see the Basins at Risk project.

For the method behind Event coding please see the following document. Click here to download the excel spreadsheet and field descriptions for some of this data.

This database is a work in progress, and we welcome comments and additional entries. Please contact Aaron Wolf with comments or with new entries. For questions concerning the functional operation of the database, contact Melissa McCracken.

Wide use of electronic and hardcopy versions of data, GIS coverages, and findings produced by the Transboundary Freshwater Dispute Database (TFDD) project is encouraged.  The data, coverages, and findings are not copyrighted, although due credit is appreciated.  Please attach this credit when citing TFDD products:

“Product of the Transboundary Freshwater Dispute Database, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University.  Additional information about the TFDD can be found at: <>.”

If the product is to be used on the web, a hot link to the above address would be appreciated.

For questions, please contact the webmaster.

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