8,255
edits
Changes
Jump to navigation
Jump to search
mLine 3:
Line 3: − + Line 31:
Line 31: + +
→Example: City of Barrie, using years 2015 to 2017
The Ontario Ministry of the Environment Conservation and Parks, and other regulatory agencies perform much more rigorous statistical analyses than the example presented, and their resultant stormwater management targets vary accordingly.
The Ontario Ministry of the Environment Conservation and Parks, and other regulatory agencies perform much more rigorous statistical analyses than the example presented, and their resultant stormwater management targets vary accordingly.
==Example: City of Barrie, using years 2015 to 2017==
==Example: City of Barrie, using only years 2015 to 2017==
Daily rainfall records from ''BARRIE LANDFILL'' weather station were obtained for the years 2015 - 2017, from the [http://climate.weather.gc.ca/historical_data/search_historic_data_e.html Environment Canada historical data record].
Daily rainfall records from ''BARRIE LANDFILL'' weather station were obtained for the years 2015 - 2017, from the [http://climate.weather.gc.ca/historical_data/search_historic_data_e.html Environment Canada historical data record].
[[File:Barrie cumulative.jpg|border|600 px]]
[[File:Barrie cumulative.jpg|border|600 px]]
The 90th percentile event is the size of event for which 90% of all events are same depth or lower. In this example, using a very limited data set it was found to be 20 mm.