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Jet stream theory in a warmer and colder world


sub-polar men

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It has been Observed in the colder part of 20th century that the jet stream was so strong then all of a sudden the jet stream broke up(1)

The hypothesis is that the atmospheric heat transport circulation can only take a limited north-south temperature gradient. so if it goes beyond that limit the atmospheric heat transport circulation will fragment(2). Allowing the polar high to dominate the mid-latitudes(3).

So this is my understanding. In a warmer world the north-south temperature gradient is less. This means that the atmospheric heat transport circulation is more stable. Also the jet stream is more north and more stable. This will give the UK months of mild winters due to the more stable westerly winds, unlikely to brake up. Summers will be dryer with heat waves.

Reverence

Book

1. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 146.

2. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 147.

3. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 221,222.

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It has been Observed in the colder part of 20th century that the jet stream was so strong then all of a sudden the jet stream broke up(1)

The hypothesis is that the atmospheric heat transport circulation can only take a limited north-south temperature gradient. so if it goes beyond that limit the atmospheric heat transport circulation will fragment(2). Allowing the polar high to dominate the mid-latitudes(3).

So this is my understanding. In a warmer world the north-south temperature gradient is less. This means that the atmospheric heat transport circulation is more stable. Also the jet stream is more north and more stable. This will give the UK months of mild winters due to the more stable westerly winds, unlikely to brake up. Summers will be dryer with heat waves.

Reverence

Book

1. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 146.

2. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 147.

3. Atmosphere, weather and climate. Roger g. Barry and Richard j. Chorley. Page 221,222.

An interesting article on this very topic can be found here:

http://co2sceptics.com/news.php?id=1458

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