Abstract
The July and January climates of 9 000 years ago are simulated with a high resolution general circulation model. The incoming solar radiation is specified from the orbital parameters for 9 000 years ago, and the effect of the remnant North American ice sheet is taken into account (sea-surface temperatures are not changed from modern values). The change in radiation causes temperatures to be higher in July and lower in January over large areas of the continents; the increased temperature contrast between land and ocean results in intensified monsoon circulation and increased precipitation over tropical lands. These findings agree with paleoclimatic evidence and with the results of experiments done using a low resolution model.
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Kutzbach, J.E., Guetter, P.J. (1984). The Sensitivity of Monsoon Climates to Orbital Parameter Changes for 9 000 Years BP : Experiments with the NCAR General Circulation Model. In: Berger, A., Imbrie, J., Hays, J., Kukla, G., Saltzman, B. (eds) Milankovitch and Climate. NATO ASI Series, vol 126. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-4841-4_23
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DOI: https://doi.org/10.1007/978-94-017-4841-4_23
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