The following table shows the relevant configuration file for the calibration/verification combinations:
configuration file |
calibration |
verification |
opsk121.dat opsk122.dat opsk123.dat |
1882-1935 1936-1990 1882-1990 |
1936-1990 1882-1935 |
Tree chronology file: polarcomb.dat
Climate data file: nhurals.dat
To execute the transfer function run: run_tural_CH.com
The above configuration reproduces the regression weights in Table 2 for the three variants.
To execute the reconstruction run: run_recon_polar.sh which picks up the coefficients file (coeffsk123.dat) and the parameters file (osrrecon123.par). The executable used is reconnorm_polar (compiled from reconnorm_polar.for - a modified reconnorm.for that provides denormalised output).
The time series (osrrecon_ts123.dat) output matches the 'Warmest' and 'Coldest' figures given in Table 2.