Stratospheric clouds

[nickh07@yahoo_com_au]

Hi,

I was wandering whether CAM simulates stratospheric clouds 'out-of-the-box' so to speak, or if it doesn't how one might go about prescribing them. I am essentially interested in seeing what impact polar stratospheric clouds might have on polar temperatures.

Thanks in advance,

Nicholas Herold

 

[abbot@fas_harvard_edu]

These guys might know:

Sloan, L. C., and D. Pollard, 1998: Polar stratospheric clouds: A high latitude warming mechanism in an ancient greenhouse world. Geophysical Research Letters, 25(18), 3517-3520.

Will you let me know if you find anything out?

abbot@fas.harvard.edu

 

[rneale]

PSCs are not currently simulated in the model due to the absence of the relevant chemical reactions. The plan is to make some attempt at including at least some for of this chemistry in cam4

 

[moumita_hela@gmail_com]

Well I agree this is one thing that I have never come across while doing my research work. Maybe our module does not cover this but whatever I was always curious to know more about this in details. Hope the references that I got to find here would help me meet some books written by eminent scholars regarding the same.

 

[nickh07@yahoo_com_au]

Thanks Dorian, I have that reference, the model they use is quite different (based on an older iteration of CCSM), this gives me hope that if it is possible to prescribe PSC's (albeit even in a rudimentary fashion) in that model that it is possible in CAM.