Abstract
Based on monthly mean sea level pressure and 500 hPa height data for a 20–year period simulated by IAP 2L AGCM, teleconnection patterns in the Northern Hemisphere appearing in the model are identified and compared with observations. The results show that almost all of the observed teleconnection patterns in the Northern winter can be reproduced by the model, thus these patterns exist in the atmosphere without any external anomalies. On the other hand, the simulated teleconnection patterns are more dependent on each other than the observed, i.e., they are lack of spatial orthogonality among them, therefore, it is possible that more complex patterns will appear under the action of anomalous external factors. Besides, the simulated teleconnection patterns in summer are greatly different from those in winter, in particular, its scale in summer is much less than that in winter.
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References
Hoskins, B.J. and D. Karoly (1981), The steady, linear response of a spherical atmosphere to the thermal and orographie forcing, J. Atmos. Sci., 38: 1179–1196.
Huang, J.-P. (1988), Observational and theoretical studies on monthly mean atmospheric circulation anomaly and its numerical simulation, Ph.D. dissertation, Lanzhou University, pp 226.
Huang, R.-H. et al. (1987), Influence of the heat source anomaly over the western tropical Pacific on the subtropic high over East Asia, Proceedings of the International Conference of the General Circulation of East Asia, Chengdu, 40–45.
Nitta, T. (1987), Convective activities in the tropical western Pacific and their impact on the Northern Hemisphere summer circulation, J. Meteor. Soc. Japan, 65: 373–390.
Wallace, J.M. and D.S. Gutzler (1981), Teleconnections in the geopotential height field during the Northern Hemisphere winter, Mon. Wea. Rev., 109: 784–812.
Xue, F. and Q.-C. Zeng (1996), Numerical simulation of interannual variability in the atmosphere, Chinese J. Atmos. Sci., in press.
Xue, F. (1992), The statistical analysis of climate simulation and validation of IAP GCM, Ph.D. dissertation, Institute of Atmospheric Physics, Chinese Academy of Sciences, pp 173.
Yang, X.-Q. (1992), Observational study of teleconnections in the geopotential height during the Northern Hemisphere summer, Chinese J. Atmos. Sci., 16: 513–521.
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Xue, F., Zeng, Q. Teleconnection patterns in the Northern Hemisphere simulated by IAP GCM. Adv. Atmos. Sci. 14, 41–48 (1997). https://doi.org/10.1007/s00376-997-0041-x
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DOI: https://doi.org/10.1007/s00376-997-0041-x