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Table 1

The selection of events from the total number of single events in the continuous data series from the field observed green roofs

Observation periodTotal number of observed precipitation eventsEvents resulting in runoffEvents from May to October (excluding winter)Events with a duration less than 1,440 min (1 day)
Bergen 01.01.15–21.08.17 122 47 35 26 
Oslo 02.09.09–06.12.17 655 263 192 179 
Trondheim 01.01.15–18.12.17 201 47 29 20 
Sandnes 22.04.15–21.10.17 158 72 47 38 
Observation periodTotal number of observed precipitation eventsEvents resulting in runoffEvents from May to October (excluding winter)Events with a duration less than 1,440 min (1 day)
Bergen 01.01.15–21.08.17 122 47 35 26 
Oslo 02.09.09–06.12.17 655 263 192 179 
Trondheim 01.01.15–18.12.17 201 47 29 20 
Sandnes 22.04.15–21.10.17 158 72 47 38 
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