cc: Gavin Schmidt date: Tue, 19 Aug 2008 06:50:31 -0400 from: Brendan Buckley subject: Re: Revised version the Wengen paper to: Phil Jones Yes, Gavin, Ben was along with me on my project in Vietnam this past spring (I have been working there the past couple of years). We have an important Vietnam conifer paper accepted in Climate Dynamics, with Sano as first author and it is described in the text, and I have a new 700+ year ring width chronology from the same species from 12 degrees latitude that is just hot off the microscope, with amazingly robust signal strength. We have strong evidence for several multi-decadal scale droughts that extended across SEA (they show up in my 2007 Climate Dynamics paper on teak from northwestern Thailand, in Sano's paper from north Vietnam fokienia, and now my own record from south Vietnam fokienia). We see that the time of Angkor collapse was smack in the middle of the worst extended drought of the past 700 years. I plan to submit a paper in the next 2 months on this, after we finish our Monsoon workshop in mid September. I had a bit more of this in the first version but I seem to recall some comments to the effect that I was tooting the LDEO horn too much so I toned it down and included all the Poussart and isotope references that people seemed to want. As I told Phil and Keith, I can change direction on this section any way people think appropriate. Just let me know if you want me to include any of this, or anything else, and I can rewrite over this next weekend. I also don't want to steal thunder from the paper I am about to submit, but I think I can find the correct balance. Thanks, Brendan On Aug 19, 2008, at 5:11 AM, Phil Jones wrote: Gavin, See next email re the final Appendix plot. The tropical dendro section is much larger. It was mainly written by Brendan Buckley who was likely with Ben on any recent coring trip to SE Asia. The section is optimistic. There are sentences on dating of trees without rings using isotopes. Cheers Phil At 17:39 18/08/2008, you wrote: a couple of quick points - more later. - why does the CET line on figure A1 only go to 1950? Surely you have enough data to go to 1982 with no padding? I think that it is important to graphically show that even if you take IPCC90 at face value, it still shows that today is warmer. The graph will be looked at much more often than the text will be read. - I was talking to Ben Cook recently, and he was describing some tree species in Vietnam and Thailand that clearly had annual rings and that they were in the process of cross-validating the dating. In general, he was pretty optimistic about the prospects for tropical dendro. Thus in the response to reviewers and maybe the text, we should be quite open to this. Gavin On Mon, 2008-08-18 at 06:00, Phil Jones wrote: > Dear All, > Here's the revised version of the paper, together with the > responses to the reviewers. > We have told John Matthews, that we will get this back to him by > the beginning > of next week. To us in the UK this means Aug 26/27 as next Monday > is a national > holiday. So, to those not away at the moment, can you look through your > parts and get any comments back to us by the end of this week or over the > weekend? > Can you also look at the references - those in yellow and let me know of > any that have come out, or are able to correct those that I think just look > wrong? > I hope you'll think of this as an improvement. > > Cheers > Phil > > > Prof. Phil Jones > Climatic Research Unit Telephone +44 (0) 1603 592090 > School of Environmental Sciences Fax +44 (0) 1603 507784 > University of East Anglia > Norwich Email [1]p.jones@uea.ac.uk > NR4 7TJ > UK > ---------------------------------------------------------------------------- Prof. Phil Jones Climatic Research Unit Telephone +44 (0) 1603 592090 School of Environmental Sciences Fax +44 (0) 1603 507784 University of East Anglia Norwich Email [2]p.jones@uea.ac.uk NR4 7TJ UK ---------------------------------------------------------------------------- Dr. Brendan M. Buckley Doherty Research Scientist Tree-Ring Laboratory, Room 108 Lamont-Doherty Earth Observatory of Columbia University 61 Route 9W, Palisades, NY 10964 USA [3]bmb@ldeo.columbia.edu, tel: +1 845 365 8782 [4]http://www.ldeo.columbia.edu/res/fac/trl/