CLAMP data sets used in 'classic' analyses consist of pairs of Excel 5.0/95 spreadsheets. Each pair consists of a file containing physiognomic data from vegetation sites and a file containing the corresponding meteorological data from that same suite of sites. Scores from fossil sites are entered (either by direct typing or by copying and pasting) as additional rows of data at the end of the files containing physiognomic data. Click here to download an example of such a dataset with fossil site data added.
There are three sets of data spreadsheets offered here:
1) The smallest set consists of 144 modern vegetation sites predominantly from the Northern Hemisphere temperate regions. This data set (Physg3brcAZ) lacks samples belonging to the "alpine nest". Samples from areas that experience extreme cold tend to have very small leaves that lack teeth. As a result the predicted temperature tends to be anomalously high (Wolfe, 1993) although this anomally can be detected by detailed examination of the position of the fossil site in physiognomic space. Unless winter temperatures below freezing are suspected it is usually better to use this 144 site data set.
2) The second set consists of 173 modern vegetation sites, again predominantly from the Northern Hemisphere but this set includes samples from areas experiencing pronounced winter cold.
3) The third set is made up of the Physg3brc data set with an additional 45 sites from China. This is the PhysgAsia1 dataset containing physiognomic data on 189 sites in total. This is the first of a suite of Asian calibrations that are directed towards studies of the Asian monsoon system.