TY - JOUR
T1 - Permafrost as a critical factor in palaeoclimate modelling: the Younger Dryas case in Europe.
AU - Renssen, H.
AU - Isarin, R.F.B.
AU - Vandenberghe, J.
AU - Lautenschlager, M.
AU - Schlese, U.
PY - 2000
Y1 - 2000
N2 - Simulations with an atmospheric climate model of the Younger Dryas climate, a distinct cooling event around 12 kyr cal B.P., were compared with temperature reconstructions based on fossil plant data. In one experiment we forced the model to maintain a wet and frozen soil at high latitudes to reproduce the effect of permafrost in the model. This measure resulted in a climate similar to the reconstructions with a depression of the summer temperatures in Eurasia by 4-8°C and an increase in precipitation. This suggests that permafrost may have played a more important role in driving paleoclimates (such as the Younger Dryas climate) than believed until now. This calls for re-evaluation of (paleo)climate simulations in which permafrost was not explicitly included. (C) 2000 Elsevier Science B.V. All rights reserved.
AB - Simulations with an atmospheric climate model of the Younger Dryas climate, a distinct cooling event around 12 kyr cal B.P., were compared with temperature reconstructions based on fossil plant data. In one experiment we forced the model to maintain a wet and frozen soil at high latitudes to reproduce the effect of permafrost in the model. This measure resulted in a climate similar to the reconstructions with a depression of the summer temperatures in Eurasia by 4-8°C and an increase in precipitation. This suggests that permafrost may have played a more important role in driving paleoclimates (such as the Younger Dryas climate) than believed until now. This calls for re-evaluation of (paleo)climate simulations in which permafrost was not explicitly included. (C) 2000 Elsevier Science B.V. All rights reserved.
U2 - 10.1016/S0012-821X(99)00322-2
DO - 10.1016/S0012-821X(99)00322-2
M3 - Article
SN - 0012-821X
VL - 176
SP - 1
EP - 5
JO - Earth and Planetary Science Letters
JF - Earth and Planetary Science Letters
ER -
