What caused the record-low Antarctic sea ice in austral summer 2022? Natural variation perhaps…
” data-medium-file=”https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg?w=300″ data-large-file=”https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg?w=585″ src=”https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg?w=300&h=170″ alt=”" width=”300″ height=”170″ class=”size-medium wp-image-29174″ srcset=”https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg?w=300&h=170 300w, https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg?w=150&h=85 150w, https://tallbloke.files.wordpress.com/2016/10/seaice2.jpg 585w” sizes=”(max-width: 300px) 100vw, 300px” />
Sea ice levels are notorious for misuse by climate alarmists. Thankfully no mention of climate red herrings in this study.
– – –
Antarctic sea ice is an important component of the climate system [snip – redundant climate waffle] — [and] significant changes in Antarctic sea ice have been observed, says Phys.org.
Specifically, it experienced a slow increase during 1979–2014, but a rapid decline thereafter.
Despite a modest recovery after the record minimum in 2017, the sea ice area during austral summer 2022 (December 2021 to February 2022) again hit a new record minimum, at 3.07 million km2, which is approximately a 25% reduction compared with its long-term mean during 1981–2010.
The largest decline occurred in two regions: the central-eastern Ross Sea to western Amundsen Sea, and the eastern Bellingshausen Sea to the northern Weddell Sea.
This latest record low occurred just five years after the preceding record low in summer 2017, which is surprising and has raised concern about climate change in the Antarctic.
In a paper recently published in Atmospheric and Oceanic Science Letters, Prof. Shuanglin Li from the Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, and Dr. Chao Zhang from the China University of Geosciences, Wuhan, China, attempt to uncover the underlying mechanisms of this record-low sea ice area.
“We found that the combination of stronger positive sea surface temperature anomalies in the Maritime Continent during July–September 2021 and the preceding near-strongest positive-phase Southern Annular Mode during August–October 2021 induced a deepened and southwestward-shifted Amundsen Sea Low, causing sea ice retreat via horizontal wind anomalies,” explains Prof. Li.
The former persisted into summer and favored the development of La Niña, which triggered an atmospheric wave train emanating from eastern Australia and propagating southeastward, deepening the Amundsen Sea Low remotely. The latter remained strongest or close to strongest due to the stratospheric cooling effect of unprecedented ozone reduction, which induced a deepened and southwestward-shifted Amundsen Sea Low.
“The unprecedented ozone reduction also played a role through the induced surface warming in the West Antarctic by increasing downward shortwave radiation. Additionally, positive feedback between sea surface temperatures, net shortwave radiation, and cloudiness, along with the Ekman heat transport, amplified the surfacing warming,” adds Prof. Li.
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Please Help Support BeforeitsNews by trying our Natural Health Products below!
Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST
Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!
HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.
Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.
MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup with oxygen!
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover - Reduces Smart Meter radiation by 96%! (See Video).
A lie as usual?