But how does the course of the jet stream affect extreme weather? It’s likely that a decrease in temperature difference between the Arctic and mid-latitudes takes some of the oomph out of the jet stream's winds. As the winds weaken they can more easily be diverted by obstacles like mountain ranges, unusual surface temperatures and tropical storms. Once the jet stream starts to meander more, the north-south waves move eastward increasingly slowly, meaning that weather systems also shift more slowly. “When this happens we often see extreme events that are caused by persistent weather conditions, such as droughts, flooding due to prolonged rain, heat waves and cold spells,” explained Francis.
Not everyone agrees with this theory but if Francis and Vavrus are right we are in for a bumpy ride in coming decades. Changeable weather will no longer be the norm; instead we will have to get used to repeating weather patterns, jammed on for weeks at a time.
[h=3]Big Solar Flare, Jet Stream Shifting | S0 News January 13, 2015 ...
www.youtube.com/watch?v=X6HtozyyJ5s
4 days ago - Uploaded by Suspicious0bservers
Big Solar Flare, Jet Stream Shifting | S0 News January 13, 2015 .... Amazing video of massive solar flare erupting from surface of Sun ...
Not everyone agrees with this theory but if Francis and Vavrus are right we are in for a bumpy ride in coming decades. Changeable weather will no longer be the norm; instead we will have to get used to repeating weather patterns, jammed on for weeks at a time.
[h=3]Big Solar Flare, Jet Stream Shifting | S0 News January 13, 2015 ...
► 4:40► 4:40
www.youtube.com/watch?v=X6HtozyyJ5s
4 days ago - Uploaded by Suspicious0bservers
Big Solar Flare, Jet Stream Shifting | S0 News January 13, 2015 .... Amazing video of massive solar flare erupting from surface of Sun ...
دور پیوندهای QBO _ چرخه خورشید و رابطه فازهای مختلف انها با SSW؛
بیشینه خورشید _ QBO غربی تقویت BDC افزایش دمای ورتكس (تضعیف ورتكس قطبی)،
كمینه خورشید _ QBO غربی تضعیف BDC كاهش دمای ورتكس (تقویت ورتكس قطبی)،
بیشینه خورشید _ QBO شرقی كاهش دمای ورتكس و
كمینه خورشید _ QBO شرقی افزایش دمای ورتكس.
گرمايش استراتوسفر => تضعيف ورتكس قطبى => blocking + negative MJO = فوريه سرد و مرطوب براى ايران
گرمايش استراتوسفر => تضعيف ورتكس قطبى => blocking + negative MJO = فوريه سرد و مرطوب براى ايران
