2024-07-17 23:38:03
In the Antarctica A sudden stratospheric warming (SSW) was detected; it is a unexpected climatic phenomenon that could affect the entire planet according to various environmental organizations.
SSW or sudden stratospheric warming is a term coined by meteorologist Richard Scherhag, who discovered this phenomenon in 1952, which consists of a rapid increase in temperature (tens of degrees) in less than a week in the northern winter stratosphere.
Such events may not directly affect the ground immediately. However, their filtering through the atmosphere can influence tropospheric weather in subsequent weeks.
“If an SSW event manages to reach the troposphere, it can cause the tropospheric polar vortex to weaken, allowing cold polar air to move away from Antarctica (or the Arctic if you are in the Northern Hemisphere) and spread into the mid-latitudes.”
Ashleigh Madden de WeatherZone
In this sense, it is contemplated that an SSW can modify the Southern Annular Mode (SAM) to a negative phase, a fact that could impact the Australian winter with cold fronts and low pressure systems south of Australia, as well as rain and snow in the southeast and southwest regions of the continent.
Antarctica (AFP)
Antarctica: Sudden warming on the continent could also manifest itself in the northern hemisphere
Around the sudden stratospheric warming in Antarcticameteorologist Andrej Flis of Severe Weather Europe explained that “these stratospheric warming phenomena contain a lot of energy and can affect the entire hemisphere.”
“We have had several cases where this has occurred in the Northern Hemisphere, affecting winter weather patterns.”
Andrej Flis
The specialist explained that this climatic phenomenon can generate a prolonged high pressure anomaly over the South Polewhile its effects in the northern hemisphere could occur in the weeks following the sudden warming in Antarctica:
“It is possible that a large-scale phenomenon such as stratospheric warming could cause a prolonged high pressure anomaly over the South Pole. Several weeks or months in advance, some effects of the SSW phenomenon could perhaps manifest in the Northern Hemisphere.”
Andrej Flis
Antarctica: Sudden warming could affect the entire planet because the northern and southern stratospheres are connected
In relation to the sudden warming in Antarctica, Expert Andrej Flis spoke about a study linked to the investigation of a major stratospheric warming event recorded at the South Pole in 2019.
After the passage of the SSW, the study identified 40-80% ionospheric charge anomalies in the United Stateswhile In Europe, a reverse change was experienced, as the energy wave from the phenomenon event reached the northern hemisphere.
In this way, the sudden warming in Antarctica could affect the temperature of the entire world because the northern and southern stratosphere are connected through the Brewer-Dobson circulation.
2024-07-17 23:38:03