Re : Is deze reeks een hittegolf? WMO's definitie!
Bericht van: Ronald (Oak Creek, Wisconsin)
, 17-07-2013 19:39
The definition recommended by the World Meteorological Organization is when the daily maximum temperature of more than five consecutive days exceeds the average maximum temperature by 5 °C (9 °F), the normal period being 1961–1990.[3]
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