Dear Veroustraete,

The coupling among these elements occurs as follows:Changes in the jet stream can influence the direction and speed of atmospheric pressure systems, such as low-pressure systems and fronts. These changes, in turn, can affect the omega patterns, favoring or hindering the formation of anticyclonic blocks.

Anticyclonic blocks can alter the path and intensity of the jet stream, diverting it to different areas. This can have a significant impact on local and regional climate patterns.

The Gulf Stream is also affected by the jet stream and atmospheric patterns. Shifts in the speed and trajectory of the jet stream can influence the distribution of heat at the ocean's surface, affecting the intensity and position of the Gulf Stream.

Best, David

Note that these interactions are complex and can be influenced by a variety of other factors, including sea surface temperatures, atmospheric pressure patterns, and more. Additionally, climate change can alter the behavior of these systems, potentially leading to shifts in weather patterns and increased variability.

References

https://theconversation.com/explainer-the-omega-shaped-jet-stream-responsible-for-europes-heatwave-44268

https;//www.abc.net.au/news/2023-10-01/how-the-jet-stream-has-been-causing-extreme-weather/102885780

Hope it helps

Hi David and Alain,

Your answers are right in the ball park. Do you know of research groups active in this field, which have attempted to model the phenomena that both of you described?

Thanks for your answers!

Frank

Dear Frank

Meteorologist Michael Barnes from Monash University and ARC Centre of Excellence for Climate Extremes is one of the specialist.

Also here attached a literature overview for the link between atmospheric blocking and extreme weather.

Blocking and its Response to Climate Change | Current Climate Change Reports (springer.com)

link.springer.com/article/10.1007/s40641-018-0108-z

Good luck

Thanks so much Alain,

Be well,

Frank