Quasi-geostrophic theory and its application based on baroclinic two-layer model

Wang Xiu-Ming; Zhou Xiao-Gang; Tao Zu-Yu; Yu Xiao-Ding

doi:10.7498/aps.62.029201

Abstract

The quasi-geostrophic theory is the theoretical basis of the short-term weather forecast. Quasi-geostrophic motion equations of mid-latitude synoptic -scale movement are the core of quasi-geostrophic theory. Based on baroclinic two-layer model, quasi-geostrophic potential tendency equation and vertical motion equation can more clearly explain the movement and development of upper and surface weather systems. The movement of 500 hPa upper trough depends on the vorticity advection of 500 hPa, its development is determined by 500 hPa vorticity advection and differential vorticity advection between 250 and 750 hPa . The movement and development of cyclone depend on the positive temperature advection at 500 hPa and differential vorticity advection between 250 and 750 hPa. A case of snoptic system evolution demonstrates that quasi-geostrophic theory based on baroclinic two-layer model is conducive to the quick recognition of the characteristics of mid-latitude synoptic scale baroclinic development system, the understanding of the objective law of the development of the weather systems and the physical basis of numerical products.

Keywords:

Authors and contacts

1.
China Meteorological Administration Training Center, Beijing 100081, China;
2.
Physical School of Peking University, Beijing 100871, China
Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 41005002, 40875029, 40745032), and the Meteorological industry-specific fund in 2009 (Grant No. GYHY200906003).

References

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Cited By

[1]	Yu Z H, Miao M Q, Jiang Q R, Yang P Z 2004 Fluid Mechanics (Beijing: China Meteorological Press) p45 (in Chinese) [余志豪, 苗曼倩, 蒋全荣, 杨平章 2004 流体力学 (北京: 气象出版社) 第45页]
[2]	Yang D S, Liu Y B, Liu S K 1980 Dynamic Meteorology (Beijing: China Meteorological Press) p172 (in Chinese) [杨大升, 刘余滨, 刘式适 1980 动力气象学 (北京: 气象出版社) 第172页
[3]	Cai Q F, Huang S X, Gao S T, Zhong K, Li Z Q 2008 Acta Phys. Sin. 57 3912 (in Chinese) [蔡其发, 黄思训, 高守亭, 钟科, 李自强 2008 57 3912]
[4]	Wu G X 2010Acta Meteor. Sin. 59 385 (in Chinese) [吴国雄 2010 气象学报 59 385]
[5]	Zhou Y S, Ran L K 2010Acta Phys. Sin. 59 1366 (in Chinese) [周玉淑, 冉令坤 2010 59 1366]
[6]	Cao J, Gao S T, Zhou Y S 2008 Acta Phys. Sin. 57 2600 (in Chinese) [曹洁, 高守亭, 周玉淑 2008 57 2600]
[7]	Zhou Y S, Cao J, Gao S T 2008 Acta Phys. Sin. 57 6654 (in Chinese) [周玉淑, 曹洁, 高守亭 2008 57 6654]
[8]	Tao J J, Li C K 2009 Acta Phys. Sin. 58 4313 (in Chinese) [陶建军, 李朝奎 2009 58 4313]
[9]	Zhou X G, Liu S J, Wang X M, Tao Z Y 2011 Acta Phys. Sin. 60 059201 (in Chinese) [周小刚, 柳士俊, 王秀明, 陶祖钰 2011 60 059201]
[10]	Feng G L, Gong Z Q, DongW J, Li J P 2005 Acta Phys. Sin. 54 5494 ( in Chinese) [封国林, 龚志强, 董文杰, 李建平 2005 54 5494]
[11]	Shi N 2005 Chin. Phys. 14 844
[12]	Dai X G, Fu C B, Wang P 2005 Chin. Phys. 14 850
[13]	Feng G L, Dong W J 2003 Chin. Phys. 12 1076
[14]	Wang D H, Du J, Liu C J 2011 Meteor. 37 385 (in Chinese) [王东海, 杜钧, 柳崇健 2011 气象 37 385]
[15]	Liu C J, Liu Y, Xu H 2007 Chinese J. Atmos. Sci. 31 1251 (in Chinese) [柳崇健, 刘英, 徐辉 2007 大气科学 31 1251]
[16]	Liu C J 1988 The Theory of Dissipative Structures for the Atmosphere (Beijing: China Meteorological Press) pp82-105 (in Chinese) [柳崇健 1988 大气耗散结构理论 (北京: 气象出版社) 第82–105页]
[17]	Yang D S, Liu Y B, Liu S K 1980 Dynamic Meteorology (Beijing: China Meteorological Press) pp194-204 (in Chinese) [杨大升, 刘余滨, 刘式适 1980 动力气象学 (北京: 气象出版社) 第194–204页]
[18]	Liu S K, Liu S D 1991 Atmospheric Dynamics (Beijing: Peking University Press) pp254-256 (in Chinese) [刘式适, 刘式达 1991 大气动力学 (北京: 北京大学出版社) 第254–256 页]
[19]	Zhu Q G, Lin J R, Shou S W, Tang D S 2007 Principles and Methods of Synoptics (Beijing: China Meteorological Press) pp214-216 (in Chinese) [朱乾根, 林锦瑞, 寿绍文, 唐东昇 2007 天气学原理与方法 (北京: 气象出版社) 第214–216页]
[20]	Yang D S, Liu Y B, Liu S K 1980 Dynamic Meteorology (Beijing: China Meteorological Press) p242 (in Chinese) [杨大升, 刘余滨, 刘式适 1980 动力气象学 (北京: 气象出版社) 第242页]
[21]	Zhou X G, Liu S J, Wang X M, Tao Z Y 2011 Chinese J. Geophys. 54 2495 (in Chinese) [周小刚, 柳士俊, 王秀明, 陶祖钰 2011 地球 54 2495]
[22]	Lu M Z, Hou Z M, Zhou Y 2004 Dynamic meteorology (Beijing: China Meteorological Press) pp97-99 (in Chinese) [吕美仲, 侯志明, 周毅 2004 动力气象学 (北京: 气象出版社) 第97–99页]
[23]	Ding Y H 1989 Diagnosis Method of Weather Dynamics (Beijing: Science Press) pp55-60 (in Chinese) [丁一汇 1989 天气动力学中的诊断分析方法 (北京: 科学出版社) 第55–60页]
[24]	Bluestein H B 1992 Synoptic-dynamic Meteorology In Midlatitudes: Volume II: Observations and Theory of Weather Systems (Oxford University Press) pp5-7

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Vol. 62, Issue 2 - 2013-01-20

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