Atmospheric Circulation and Seasonal Variation

[Soaring Crane]

How does the summer solstice affect the position of Hadley cells? I know that the solar equator is 23.5 degrees North, which differs from the 0 degrees (as a solar equator) for the equinox. For the equinox in the N. hemisphere, there are three Hadley cells, or cells of circulation. The range of each cell are as follows: one is 0 N - 30 N, one is 30 N -60 N, and the other is 60 N and above. What exactly are the cell ranges during the summer solstice?

Thanks.

 

[Astronuc]

Apparently -

Doldrums shift from Tropic of Cancer (23.5°N) to Tropic of Capricorn
(23.5°S) and back over the course of a year
- Hadley cells and associated winds vary between 53.5°N/S to
23.5°N/S (summer solstice) to 6.5°N/S to 23.5°N/S (winter
solstice)
- between 30° N/S and 0° only on equinox

Page 7/49 of

http://www.eas.slu.edu/People/KChauff/ocean/3Oceanote_2002.pdf

and

- Ferrel cells and associated winds shifts between 83.5°N/S to
53.5°N/S (summer solstice) to 6.5°N/S to 36.5°N/S (winter
solstice)
- between 30° N/S and 60° N/S only on equinox
- Polar cells and associated winds contracts to 90°N/S to 83.5°N/S in
summer and expands to 90°N/S to 36.5°N/S in winter
- between 90° N/S and 60° N/S only on equinox

This seems interesting - http://www.wwnorton.com/college/geo/oceansci/ch/09/welcome.asp

This might be of future interest -
http://ams.allenpress.com/perlserv/...0.1175/1520-0469(1999)056<1797:TDNHC>2.0.CO;2