cc: "peter.thorne" , Phil Jones , Dick Dee date: Fri, 13 Mar 2009 17:42:56 +0000 from: Adrian Simmons subject: Re: ERA Analysis to: Kate Willett Dear Kate I've no problem at all with you discussing this with Steve Sherwood. The latest version is attached. You can see I've a first version of the introductory sections, the discussions of temperature, and about a third of the discussion on the humidity results. Compared with earlier: (i) I've dropped the remark in the abstract about the ERA-Interim background being clearly better than ERA-40 for temperature. The only thing clear when I looked at it in more detail was that I had made a programming error. (ii) I've followed advice in an earlier email from Phil, and switched from CRUTEM3v to CRUTEM3. There are a few extra grid boxes with meaningful values in CRUTEM3, and it fits ERA slightly better than CRUTEM3v. I also added a table with some least-squares-fit linear trends - I'm not a fan of linear fits in general, but it seemed a convenient way of summarising things. (iii) I've put in some figures in Table 5 which show some correlations (all positive, though not too exciting) between the humidity and precipitation time series. (iv) I've a plot (Figure 11) of the number of gauges entering the GPCC analysis. But the later stuff may change when I get round to writing the text. I'm open to comments on the text that is already there, though you might be better to wait until a complete draft is available, as I'm likely to go back and change a few things in any case when I get to the end. Best regards Adrian Kate Willett wrote: > Hi Adrian, > > We have Steve Sherwood visiting us next week to work with us on some > heat-stress work and radiosonde data. We thought his input might be > interesting/useful on the ERA analysis, especially in terms of the > apparent drop in RH. We'd make it clear that this is work to be > published soon. How do you feel about this? If you think it might be > useful and are happy for us to do this then please could you email a > copy of the most recent version to date. I understand if you'd rather we > hold back though. > > Getting a bit snowed under at the moment so I won't have chance to do > anymore to HadCRUH for a week or so but its still on my list. > > Kate -- -------------------------------------------------- Adrian Simmons European Centre for Medium-Range Weather Forecasts Shinfield Park, Reading, RG2 9AX, UK Phone: +44 118 949 9700 Fax: +44 118 986 9450 -------------------------------------------------- Attachment Converted: "c:\eudora\attach\qpaper1.pdf"