date: Tue, 21 Oct 2003 12:40:34 +0100 (BST) from: Itsuki C Handoh subject: HadCM3 to: Tim Osborn Dear Tim, I guess you know that HadCM3 does very bad job over the tropical Atlantic sector. The appauling representation of the interannual varaibility and its seasonal dependency could be due to a suppressed seasonal phase-locking structure of the Pacific ENSO in the model (compared with observational evidence). We cannot possibly use HadCM3 for seasonal forecasting over the Atlantic-Europe sector, until this problem is sorted out. I provoked COAPEC committee members when I gave a short talk on this issue. Because I didn't get COAPEC core team job (for seasonal forecast), I no longer intend to directly contribute to the modification of HadCM3, but will write up a paper on my analysis of HadCM3 ctrl runs, before I move to Sheffield. As Adam's pproject would heavily rely on the control runs, I have been worried about it. We hope that decadal variability produced by the model is not as poor as the interannual counterpart. I have to work on decadal modulation of the interannual variabitity, though.... Cheers, -Itsuki- ------------------------------------------------------------------- Dr. Itsuki C. Handoh, Senior Research Associate, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom. E-mail: I.Handoh@uea.ac.uk Tel: +44(0)1603-592041 (ENV 01.41B) Fax: +44(0)1603-591327 WWW: http://www.uea.ac.uk/~e096 Mobile: 07751-513263 -------------------------------------------------------------------- On Tue, 21 Oct 2003, Tim Osborn wrote: > At 21:22 20/10/2003, you wrote: > >Adam and I are going to discuss tropical Atlantic variability and darkness > >of HadCM3 conntrol runs, in order to minimise potential overlaps between his > >and my projects. > > Dear Itsuki, > > I was intrigued to know what "darkness of HadCM3 control runs" > means? Could you explain further? > > Cheers > > Tim > > > > Dr Timothy J Osborn > Climatic Research Unit > School of Environmental Sciences, University of East Anglia > Norwich NR4 7TJ, UK > > e-mail: t.osborn@uea.ac.uk > phone: +44 1603 592089 > fax: +44 1603 507784 > web: http://www.cru.uea.ac.uk/~timo/ > sunclock: http://www.cru.uea.ac.uk/~timo/sunclock.htm > >