This summer Norway will test a new definition of heat waves. The new requirement requires a longer period of heat to classify as a heat wave.

Previously, heat waves were defined as temperatures above 28 degrees in 3 days. But that will change soon.

The new classification requires daytime temperatures above 28 degrees Celsius for five days. At the same time, the night temperature cannot drop below 16 degrees Celsius during the same period.

“The change is a moving average of 3 to 5 days, with maximum temperatures above 28 ° C. When Currently, the minimum temperature is also included (the nighttime temperature does not fall below 16 ° C on the same 5-day moving average), “said climate researchers. Helga Therese Tillita Jet In the Climate Services Division of the Norwegian Meteorological Institute Norway today on mail.

The reason behind the change

“The Meteorological Research Institute (MET) wanted to have a more stringent heat wave index because of the frequent occurrence of the three-day heat wave index.

“This summer we are testing if MET needs to start with a heat wave hazard warning. MET feels a little uncomfortable and wants an indicator of the challenging heat that occurs almost every other year. rice field.

“After that, we decided to extend the number of days, including the lowest temperature at night,” Tajet added.

She said the new definition would also help monitor future heat wave phenomena.

“This summer, MET is testing for the need for a danger warning against heat waves and will evaluate it after the summer,” the climate researchers concluded.

Robin-Ivan Capar is a contributor and editor of Norway Today.

Source: #Norway Today / #NorwayTodayNews

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