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The level of green areas inside and around cities, 2006
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Then we calculated the difference between total mean and the city value. Using these two values (difference to mean city/ difference to mean UMZ*) we classified all cities into the following classes:
1 - Brown city in a brown background
2 - Green city in a brown background
3 - Brown city in a green background
4 - Green city in a green background
The above classification uses the following classification approach:
Class 1 - Brown city in a brown background
(UMZ and City values < total mean)
Class 2 - Brown city in a green background
(UMZ values >= total man AND city values < total mean)
Class 3 - Green city in a brown background
(UMZ values < total mean AND city values >= total mean)
Class 4 - Green city in a green background
(UMZ AND city values >= total mean)
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Additional information
'Brown' considers cities with a below average share of green urban areas or green background while 'green' signifies above average. As noted for Map 2.3, different urban delineations might also influence some values of the urban background.
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