While in last summer (2019/2020), record high temperature, +18,3°C / 64.9°F was during strong El-nino measured in Antarctica, Summer 2020/2021 is different, with peking La nina pattern and extremely low temperatures across the continent.
It is still summer in Antarctica, but in Dome Fuji, minimum temperature dropped on Monday, 22. February 2021 only to -60,3°C, what is only 4,2°C fro the coldest February temperature in continent ever!
Cold weather pattern continues, similarly, such as continues climate change in the region, with shockingly – decreasing temperature trend over continent, Southern Ocean and parts of Southern Hemisphere.
Antarctica therefore is becoming the largest global warming hole in the system, with many negative climate feedbacks, supporting autoregulation of Earth´s climate including growth of sea ice area above Southern Ocean thanks to melted fresh water from the continent.
Frozen Southern Ocean then is bringing colder temperature anomalies acorss region thanks to lower albedo and untraditionally strong coldwaves epizodically hit parts of continents in Southern Hemisphere, according to estimates mainly southern and western South America (Patagonia, Chile) or southwestern Australia (mainly Perth region), sometimes too SE Africa (Mozambique, Eswatini), where are warming trends the smallest.
Possible cold records should surprise continent during Spring 2021, too, because strong La nina is expected still, but during the Winter 2021 (JJA), transition to neutral ENSO phase, and in Spring 2021 (SON) and Winter 2021/2022 (DJF) to El nino is expected, with warmer conditions in southern continents.
Few weeks ago we twitted about the first -50C of 2021 in the Southern Hemisphere. And on 22 February the mark of -60C was broken again at the japanese station of Dome Fuji in Antarctica with -60.3C. The coldest temp. ever recorded in February in Antarctica is -65.5C at #Vostok. https://t.co/rbmp5u7FkA
— Extreme Temperatures Around The World (@extremetemps) February 23, 2021
"science…progresses"
Yes, now (2020) we understand that total greenhouse effect forcing (longwave radiation) is determined by temperature instead of greenhouse effect forcing determining temperature.
Temperature and Pressure anomaly of 2020 in Antarctica (ref. 1981-2010). Warm over the Antarctic Peninsula and near Amery. Cold over Flichner-Ronne and Adelie Land. Observations do not always match with reanalysis. pic.twitter.com/wUo1IffYRM
In this new paper lead by @MatthisAuger we investigate temperature change in the Southern Ocean using the longest time series of temperature observations cross cutting the entire basin from North to the Antarctica coast.https://t.co/5KQimHaOFT
Start of January 2021 looks very cold to Antarctica. I checked data to backwards we have to go back to 1978 that we could find as cold as January Antarctica as now.
Also Southern Hemisphere temperature has came down last seen 2012 or 2014 that kind of colder than normal levels. pic.twitter.com/ZM7l6RwCMJ
Fact 44: The coldest temperature ever recorded was -128 degrees Fahrenheit ( -89°C). The temperature was recorded in Antarctica, Vostok Station, during a span of research between 2004 and 2016.#TGfacts#teengoinggreenpic.twitter.com/2in2Lfi6db
