Weather tracker: sea surface temperatures hit record high
Analysis shows record occurred after La Ni?a period, when temperatures across central and eastern Pacific tend to be cooler Sea surface temperatures (SSTs) reached a record high on 16 March this year, surpassing the previous record set in March 2016, according to an analysis by the US's National Oceanic and Atmospheric Administration. This is particularly surprising as it occurred after three years of La Ni?a, where SST anomalies across the central and eastern Pacific tend to be cooler than normal. The previous record set in 2016 was recorded after an El Ni?o: this would be more normal as SSTs across the central Pacific are warmer than average and therefore have time to build warmth at the ocean surface. It means a particularly intense El Ni?o year or a long period of Pacific Ocean warming is no longer necessary to achieve record high global SSTs.Meanwhile, in Australia a heatwave has been building throughout the past week, bringing scorching conditions across much of the country with many weather stations breaking their March maximum temperature records as well as their highest minimum temperature records. By Sunday, many areas of New South Wales in particular recorded temperatures in the high 30s and low 40s celsius. For example, Beaudesert Drumley Street, a station near Brisbane, registered a record high temperature for March of 38.4C on 17 March and Wilcannia reached a scorching 43.8C on 19 March. This hot spell is also not likely to break down completely until later next week with temperatures continuing into the high 30s celsius. With the addition of an El Ni?o on the horizon later this year, Australia could see the return of drought conditions. Continue reading...
Celý článek: https://www.theguardian.com/environment/2023/mar/20/weather-tracker-sea-surface-temperatures-hit-record-high
Zdroj: The Guardian
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