From	Ian Harris	Date	Fri, 4 Sep 2009 14:50:20 +0100
To	Tim Osborn
Subject	Re: Hopefully fixed TMP
Hi Tim I've re-run with the same database used for the previous 2006 run (tmp.0705101334.dtb). /cru/cruts/version_3_0/update_top/gridded_finals/data/data.0909041051/ tmp/cru_ts_3_00.1901.2008.tmp.dat.nc.gz Is that any better? If not please can you send the traditional multi- page country plots for me to pore over? Cheers Harry On 3 Sep 2009, at 17:04, Tim Osborn wrote: > Hi Harry and Phil, > > the mean level of the "updated-to-2008" CRU TS 3.0 now looks good, > matching closely with the 1961-1990 means of the earlier CRU TS 3.0 > and > CRU TS 2.1. > > Please see the attached PDF of country mean time series, comparing > last-year's CRU TS 3.0 (black, up to 2005) with the most-recent CRU > TS 3.0 > (pink, up to 2008). > > Latest version matches last-year's version well for the most part, and > where differences do occur I can't say that the new version is any > worse > than last-year's version (some may be better). > > One exception is the hot JJA in Europe in 2003. This is less > extreme in > the latest version. See attached PNG for a blow-up of France in JJA. > > I'm sure some people will use CRU TS 3.0 to look at 2003 in Europe, > so we > need to be happy with the version we release. > > Perhaps some hot stations have been dropped as outliers (more than 3 > standard deviations from the mean?)? > > But I'm not sure if that is the reason, since outlier checking was > already > used in last-year's version, wasn't it? > > Does the outlier checking always check +-3 SD from 61-90 mean (or > normal), > or does it check +-3 SD from the local mean (30-years centred on the > value) which would allow for a gradual warming in both mean and > outlier > threshold? > > Cheers > > Tim > > On Wed, September 2, 2009 6:08 pm, Ian Harris wrote: >> Tim >> >> When you have the time and/or the inclination, please can you run the >> new TMP output through your IDL thingummajig? >> >> /cru/cruts/version_3_0/update_top/gridded_finals/data/data. >> 0909021348/ >> tmp/cru_ts_3_00.1901.2008.tmp.dat.nc.gz >> >> Please let me know if you can't access it. I do appreciate your help! >> >> Cheers >> >> Harry > > -- > Dr. Tim Osborn > RCUK Academic Fellow > Climatic Research Unit > School of Environmental Sciences > University of East Anglia > Norwich NR4 7TJ, UK > www.cru.uea.ac.uk/~timo/ Ian "Harry" Harris Climatic Research Unit School of Environmental Sciences University of East Anglia Norwich NR4 7TJ United Kingdom