date: Tue Nov 16 08:57:47 1999
from: Tim Osborn <t.osborn@uea.ac.uk>
subject: time series for WMO diagram
to: p.jones@uea

The age-banded density Briffa et al. series can be got from:
/cru/u2/f055/tree6/NHtemp_agebandbriffa.dat
It is ready calibrated in deg C wrt. 1961-90, against the average Apr-Sep land temperature north of 20N.  It goes from 1402 to 1994 - but you really ought to replace the values from 1961 onwards with observed temperatures due to the decline.

Rather than give you a new file of your reconstruction (Jones et al.) that is re-calibrated, I thought it was easier to just give you the coefficients.  Your original normalised file should be multiplied by 0.3856, and then subtract 0.1112 to give the calibrated time series, i.e.:
CAL = (X*0.3856) - 0.1112

Cheers

Tim



