For the CityZen-specific megacity and hot spot regions the following lon/lat ranges are suggested:\\

BeNeLux small (incl. BeNeLux and Ruhr area):\\
02 deg 30 min E - 08 deg 00 min E\\
49 deg 20 min N - 53 deg 40 min N\\

BeNeLux big (incl. BeNeLux small, London and Paris):\\
01 deg 00 min W - 08 deg 00 min E\\
48 deg 00 min N - 54 deg 00 min N\\

Po Valley small (incl. Milano, Torino, Genova):\\
07 deg 30 min E - 10 deg 30 min E\\
44 deg 00 min N - 46 deg 00 min N\\

Po Valley big (incl. Po Valley small, and area to the Adriatic):\\
07 deg 30 min E - 13 deg 30 min E\\
44 deg 00 min N - 46 deg 00 min N\\

Eastern Mediterranean:\\
22 deg 30 min E - 32 deg 30 min E\\
29 deg 00 min N - 42 deg 00 min N\\

Athens big:\\
23 deg 00 min E - 25 deg 00 min E\\
37 deg 00 min N - 39 deg 00 min N\\

Cairo big:\\
30 deg 00 min E - 32 deg 30 min E\\
29 deg 00 min N - 31 deg 00 min N\\

Istanbul big:\\
28 deg 00 min E - 30 deg 30 min E\\
40 deg 00 min N - 42 deg 00 min N\\

Pearl River Delta:\\
112 deg 00 min E - 115 deg 30 min E\\
21 deg 30 min N - 24 deg 00 min N\\

For more general terms, e.g. "Eastern Europe", the definitions of IPCC/IMAGE should be used. The netCDF and EXCEL files containing these definitions were kindly provided by Angelika Heil (FZJ) and can be accessed [[region_definitions_ipcc|here]].