1.1 1.1 Training material license

These training materials have been published with the Create Commons Attribution-NoDerivs 4.0 license.

Licenses for the data used in the exercises:

• airports.dat - downloaded from Openflights. The airport data is in the public domain.
• Natural Earth - Data is in the public domain. Used data sets are: airports, countries, railroads, capitals and rivers (1:10m). Most data sets have been modified to include only EU countries. Some data sets have been slightly modified (fields which are unnecessary in the training have been removed or changed and some overseas territories of countries have been deleted as they warped certain analysis results.