70001: Experiment 1 with only changed SSTs in the N-Atlantik.
70002: Experiment 2 with SST set as in Experiment 1, but with additional ice sheets, insolation, CO2 lowered and some land points added.
70003: As Experiment 2, but with an additional lowering in the N-Pacific
70004: As Experiment 3, but with a redefined winter SST set in the N-Atlantic, based on the coupled AGCM-OGCM experiments described in Schiller et al., 1996, MPI report 188
70005: Experiment 5 with global SST set derived from Schiller et al., 1996
Special features of ECHAM3_T42_70001anom:
This experiment was made with only changed SSTs in the N-Atlantik.
The global response to these boundary conditions was analysed using three variables:
surface temperature, zonal wind speed, precipitation.
The statistical significance of the changes was tested with a two tailed t-test.
Moreover, the significant responses to cooled oceans were compared with geological evidence of a YD oscillation.
This comparison revealed a good match in Europe, Greenland, Atlantic Canada and the North Pacific region,
explaining the YD oscillation in these regions as a response to cooled N-Atlantic and N-Pacific Oceans.
However, the results leave the YD climate in other regions completely unexplained.