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The quasi 2day wave activities during 2007 austral summer period as revealed by Whole Atmosphere Community Climate Model

文献类型：期刊论文

作者Gu, Sheng-Yang1,2,3,4; Liu, Han-Li5; Pedatella, N. M.6; Dou, Xiankang1,3; Li, Tao1,3; Chen, Tingdi1,3
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2016-03-01
卷号121期号:3页码:2743-2754
关键词quasi 2day wave WACCM
DOI10.1002/2015JA022225
文献子类Article
英文摘要The quasi 2day wave (QTDW) observed during 2007 austral summer period is well reproduced in an reanalysis produced by the data assimilation version of the Whole Atmosphere Community Climate Model (WACCM+Data Assimilation Research Testbed) developed at National Center for Atmospheric Research (NCAR). It is found that the QTDW peaked 3 times from January to February but with different zonal wave numbers. Diagnostic analysis shows that the mean flow instabilities, refractive index, and critical layers of QTDWs are fundamental for their propagation and amplification, and thus, the temporal variations of the background wind are responsible for the different wave number structures at different times. The westward propagating wave number 2 mode (W2) grew and maximized in the first half of January, when the mean flow instabilities related to the summer easterly jet were enclosed by the critical layers of the westward propagating wave number 3 (W3) and wave number 4 (W4) modes. This prevented W3 and W4 from approaching and extracting energy from the unstable region. The W2 decayed rapidly thereafter due to the recession of critical layer and thus the lack of additional amplification by the mean flow instability. The W3 peaked in late January, when the instabilities were still encircled by the critical layer of W4. The attenuation of W3 afterward was also due to the disappearance of critical layer and thus the lack of overreflection. Finally, the W4 peaked in late February when both the instability and critical layer were appropriate.
WOS关键词QUASI-2-DAY WAVE ; 2-DAY WAVE
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000374730900062
资助机构Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; China Postdoctoral Science Foundation(2015 M582001) ; China Postdoctoral Science Foundation(2015 M582001) ; National Natural Science Foundation of China(41274150 ; National Natural Science Foundation of China(41274150 ; CAS Key Research Program(KZZD-EW-01-1) ; CAS Key Research Program(KZZD-EW-01-1) ; Hundred Talents Program (D), the National Basic Research Program of China(2012CB825605) ; Hundred Talents Program (D), the National Basic Research Program of China(2012CB825605) ; 41421063 ; 41421063 ; 41025016) ; 41025016) ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; China Postdoctoral Science Foundation(2015 M582001) ; China Postdoctoral Science Foundation(2015 M582001) ; National Natural Science Foundation of China(41274150 ; National Natural Science Foundation of China(41274150 ; CAS Key Research Program(KZZD-EW-01-1) ; CAS Key Research Program(KZZD-EW-01-1) ; Hundred Talents Program (D), the National Basic Research Program of China(2012CB825605) ; Hundred Talents Program (D), the National Basic Research Program of China(2012CB825605) ; 41421063 ; 41421063 ; 41025016) ; 41025016)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53506]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位1.Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
3.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Sch Earth & Space Sci, Hefei 230026, Peoples R China
4.Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
5.Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA
6.Constellat Observing Syst Meteorol Ionosphere Cli, Boulder, CO USA
推荐引用方式
GB/T 7714		 Gu, Sheng-Yang,Liu, Han-Li,Pedatella, N. M.,et al. The quasi 2day wave activities during 2007 austral summer period as revealed by Whole Atmosphere Community Climate Model[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(3):2743-2754.
APA Gu, Sheng-Yang,Liu, Han-Li,Pedatella, N. M.,Dou, Xiankang,Li, Tao,&Chen, Tingdi.(2016).The quasi 2day wave activities during 2007 austral summer period as revealed by Whole Atmosphere Community Climate Model.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(3),2743-2754.
MLA Gu, Sheng-Yang,et al."The quasi 2day wave activities during 2007 austral summer period as revealed by Whole Atmosphere Community Climate Model".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.3(2016):2743-2754.

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来源：地质与地球物理研究所

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