NUMERICAL SIMULATION OF EURASIAN TELECONNECTION PATTERN IN ATMOSPHERIC CIRCULATION DURING THE NORTHERN HEMISPHERE WINTER

K. Gambo; Lu Li; Li Weijing

doi:10.1007/BF02656739

Impact Factor: 5.8

Volume 4 Issue 4

Oct. 1987

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1987 > 4(4): 385-394

NUMERICAL SIMULATION OF EURASIAN TELECONNECTION PATTERN IN ATMOSPHERIC CIRCULATION DURING THE NORTHERN HEMISPHERE WINTER

1.
Laboratary of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, IAP, Academia Sinica, Beijing,Laboratary of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, IAP, Academia Sinica, Beijing,Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica

doi: 10.1007/BF02656739

Abstract
References
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Abstract:
In this paper, the anomaly of disturbance height field over Northern Hemisphere due to SST anomaly in the tropical Atlantic Ocean is simulated by using the general circulation model of IAP. A quasi-geostrophic, 34-level spherical coordinate model is also used to compute the distribution of atmospheric circulation anomaly when there is an anomaly of heat source over the tropical Atlantic. The computed results show that, owing to the heat source anomaly over the tropical Atlantic, the EU-pattern anomaly in the winter circulation may be caused. Namely, a ridge will be enhanced over the northwest Europe, a trough will be deepened over Siberia, but a positive anomaly of disturbance height field will be formed over the northeast China, Japan and other areas of East Asia. Moreover, the numerically simulated results show that the above-mentioned EU-pattern anomalies of circulation are due to the propagations of planetary wave train. About 15 days after an anomaly of the beat source over the tropical Atlantic is injected, the EU-pattern anomaly of atmospheric circulation is formed. This is in good agreement with the results analysed theoretically.
References

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Manuscript History

Manuscript received: 10 October 1987

Manuscript revised: 10 October 1987

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

NUMERICAL SIMULATION OF EURASIAN TELECONNECTION PATTERN IN ATMOSPHERIC CIRCULATION DURING THE NORTHERN HEMISPHERE WINTER

1. Laboratary of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, IAP, Academia Sinica, Beijing,Laboratary of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, IAP, Academia Sinica, Beijing,Lanzhou Institute of Plateau Atmospheric Physics, Academia Sinica

Manuscript received: 1987-10-10
Manuscript revised: 1987-10-10

Abstract: In this paper, the anomaly of disturbance height field over Northern Hemisphere due to SST anomaly in the tropical Atlantic Ocean is simulated by using the general circulation model of IAP. A quasi-geostrophic, 34-level spherical coordinate model is also used to compute the distribution of atmospheric circulation anomaly when there is an anomaly of heat source over the tropical Atlantic. The computed results show that, owing to the heat source anomaly over the tropical Atlantic, the EU-pattern anomaly in the winter circulation may be caused. Namely, a ridge will be enhanced over the northwest Europe, a trough will be deepened over Siberia, but a positive anomaly of disturbance height field will be formed over the northeast China, Japan and other areas of East Asia. Moreover, the numerically simulated results show that the above-mentioned EU-pattern anomalies of circulation are due to the propagations of planetary wave train. About 15 days after an anomaly of the beat source over the tropical Atlantic is injected, the EU-pattern anomaly of atmospheric circulation is formed. This is in good agreement with the results analysed theoretically.