Accumulated cyclone energy of North Atlantic hurricanes
Accumulated cyclone energy (ACE) is an index used to measure the activity of a cyclone/hurricane season. It combines the number of hurricane systems, how long theyexisted and how intense they became. It is calculated by squaring the maximum sustained surface wind in the system every six hours that the cyclone is a Named Stormand summing it up for the season.
1851
2018
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