OHSCA appears to be some sort of parameter or switch in a Hadley centre Hadcm3L model.
Apparently this has been switched on/set to 1 for the recent version 5.15 models of climateprediction.net and has caused almost all model to be much cooler. It is probably something to do with the sulphur cycle. Carl wrote at http://www.climateprediction.net/board/viewtopic.php?t=5785&postdays=0&postorder=asc&start=15 "OK, I see what is going on with 5.15 and it makes sense -- we are now using the OHSCA parameter set to 1.0 for these experiments, which would cause a large amount of sulphate cooling as this parameter is finally being used by the new code (really just one line out of a million was changed!). So that's why things look cooler, and comparing the same workunit to the old model (which had the OHSCA code commented out by Duncan) shows a vast difference. So it's all explainable & not catastrophic. I will update the parameter & workunit table so that we'll know which is which." I searched the Hadley Centre website for this but couldn't find anything. What does it do or where can I read more about it? Sorry if this question is a bit obscure. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
