On Saturday, 26 March 2016 16:32:09 UTC, Tudor Hughes wrote:
On Friday, 25 March 2016 10:22:49 UTC, Graham P Davis wrote:
In the March issue of Weather, the 'Weather news' section has an
article headed 'Will climate change delay transatlantic flights?' Now
I assumed from the title and the prevailing thoughts on the effects of
climate change that, contrary to the CEP Brooks article in Weather in
1950, the differential warming between the Arctic and the Tropics would
weaken the jet-stream, this delay to flights would be referring to
eastbound flights. On reading the article, I see my assumptions were
wrong.

The article says that eastbound flights will speed up due to the
strengthening jet-stream but west-bound ones will slow. It says that
unless emissions are cut, jet-stream winds along the flight route
between Heathrow and JFK are 'predicted to to become 15% faster in
winter, increasing from 77 to 89km/h, with similar increases in the
other seasons.'


--
Graham P Davis, Bracknell, Berks. [Retd meteorologist/programmer]
http://www.scarlet-jade.com/
I wear the cheese. It does not wear me.
Posted with Claws: http://www.claws-mail.org/

My "Weather" hasn't arrived yet so I haven't seen any of this. I wonder why it should be that the jet will strengthen under warmer conditions.. I have seen research that shows it will also move north. Apart from Brooks' conjecture is there a simple qualitative explanation of why this should be so?

Tudor Hughes, Warlingham, Surrey.

The piece in "Weather" is referring to a paper he http://iopscience.iop.org/article/10...26/11/2/024008