The short term condition in the troposphere are called?
Since this is not my area of expertise, I searched Google under the key words "troposphere 'short term'" to get these possible sources:
http://www.cosis.net/abstracts/IAGA2005/01108/IAGA2005-A-01108.pdf
http://en.wikipedia.org/wiki/Tropospheric_ozone
http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F1520-0469(1986)043%3C1152%3ASTVOTT%3E2.0.CO%3B2&ct=1
(Broken Link Removed)
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.