The Pacific Ocean is heated, which makes a decline like summer
Many Canadians have definitely experienced un-fall-like weather in the last weekend, with temperature growing in many parts of the country in the mid-20s-above average.
People used to roam the beaches in Toronto and Ottawa, an unexpected vision for the beginning of October, as the country’s capital broke a heat record, reaching 29.9C on Sunday. Montreal also reached 29.9 C on Sunday, also broke a record.
Why is it so hot? Experts point to a massive heat wave in the Northern Pacific Ocean, one of the potential culprits.
The University of Atmospheric Scientist Lalavi Mareshet Edmasu University of British Columbia says that the unusually warm sea temperature is carrying forward the jet stream north.
Jet stream is a narrow band air that flows rapidly in the west-east in the northern hemisphere, which serves as a range between cold air in the north and hot air in the south. Scientists are still detecting the complex link between sea heat waves and jet streams, but Mareshet Edmasu says some parts of Canada felt “very hot air from southern or equatorial regions” because it turns into the north.
“Some temperature records had exceeded five degrees,” said Jyoff Callson, a warning -prepared meteorologist in Canada, environment and climate change.
“This is a very rare phenomenon,” he said, as records usually “a fraction of a degree, or perhaps one or two breaks the most in one or two.”
With a temperature record for this time of the year, many took advantage of what seems like an extended summer – although not everyone was so hot on the weather.
The current sea heat wave is similar to the so -called “Blob“A multi-year-old band of hot water which has greatly influenced maritime life and fisheries from the Canadian west coasts since 2013.
Studies have shown that William Cheoung, director of The Institute for the Onson and Fisheries at the University of British Columbia, said that sea heat waves are being made worse and more often by global warming. There are waves of sea summer every year since 2019 since 2019.
This means “we will be looking at more frequent and more intense heat waves because we move forward, if we do not do good work to reduce climate change,” he said.
Ocean absorbs About 90 percent of the additional heat of the atmosphere, which is heated by the burning of fossil fuels due to greenhouse gas emissions. This year the temperature in the northern Pacific is about 2.5 degrees warm compared to the pre-industrial average, which is probably not short-term fluctuations, according to an analysis Scientific group Burkeley Earth.
The previous sea heat waves had a devastating effect on local fisheries. Pacific cod fisheries had to be far away from the coast of Alaska Closed Due to low number in 2020. Complete Biring Snow Crab Fisheri – Price of more than $ 200 million per year – Darling After its number, suddenly fell 90 percent in 2018-19.
“Many people directly for food, for culture, are dependent on the sea for livelihood,” Cheoung said.
“At the same time, weather systems affect (sea heat), it also affects people in a more indirect manner.”
Meanwhile, on the land, the forecast shows the temperature returning close to the seasonal criteria this week because a cool front runs through Ontario and Cubek. But Edmasu says that researchers like him will be looking at the passerial heat wave, which is not leaving.
He said, “The ocean turns into a slower scales compared to the atmosphere. So usually when you have these effects, they live or remain for some time,” he said, he said, he expects a warmth compared to the normal decline in North America.
