中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
On the wave number 2 eastward propagating quasi 2day wave at middle and high latitudes

文献类型：期刊论文

作者Gu, Sheng-Yang1,2,3; Liu, Han-Li4; Pedatella, N. M.4; Dou, Xiankang2,3; Liu, Yu2,3
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2017-04-01
卷号122期号:4页码:4489-4499
ISSN号2169-9380
DOI10.1002/2016JA023353
文献子类Article
英文摘要The temperature and wind data sets from the ensemble data assimilation version of the Whole Atmosphere Community Climate Model+Data Assimilation Research Testbed (WACCM+DART) developed at the National Center for Atmospheric Research (NCAR) are utilized to study the seasonal variability of the eastward quasi 2day wave (QTDW) with zonal wave number 2 (E2) during 2007. The aliasing ratio of E2 from wave number 3 (W3) in the synoptic WACCM data set is a constant value of 4x10(-6)% due to its uniform sampling pattern, whereas the aliasing is latitudinally dependent if the WACCM fields are sampled asynoptically based on the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) sampling. The aliasing ratio based on SABER sampling is 75% at 40 degrees S during late January, where and when W3 peaks. The analysis of the synoptic WACCM data set shows that the E2 is in fact a winter phenomenon, which peaks in the stratosphere and lower mesosphere at high latitudes. In the austral winter period, the amplitudes of E2 can reach similar to 10K, 20m/s, and 30m/s for temperature, zonal, and meridional winds, respectively. In the boreal winter period, the wave perturbations are only one third as strong as those in austral winter. Diagnostic analysis also shows that the mean flow instabilities in the winter upper mesosphere polar region provide sources for the amplification of E2. This is different from the westward QTDWs, whose amplifications are related to the summer easterly jet. In addition, the E2 also peaks at lower altitude than the westward modes.
WOS关键词COMMUNITY CLIMATE MODEL ; QUASI-2-DAY WAVE ; 2-DAY WAVE ; INTERANNUAL VARIABILITY ; SUMMER PERIOD ; STRATOSPHERE ; MESOSPHERE ; WINTER
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000401340800044
出版者AMER GEOPHYSICAL UNION
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 ; Hundred Talents Program ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; National Science Foundation(AGS-1138784) ; National Science Foundation(AGS-1138784) ; 2016 T90573) ; 2016 T90573) ; 41421063 ; 41421063 ; 41025016 ; 41025016 ; 41304123) ; 41304123) ; 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 ; Hundred Talents Program ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; National Science Foundation(AGS-1138784) ; National Science Foundation(AGS-1138784) ; 2016 T90573) ; 2016 T90573) ; 41421063 ; 41421063 ; 41025016 ; 41025016 ; 41304123) ; 41304123) ; 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 ; Hundred Talents Program ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; National Science Foundation(AGS-1138784) ; National Science Foundation(AGS-1138784) ; 2016 T90573) ; 2016 T90573) ; 41421063 ; 41421063 ; 41025016 ; 41025016 ; 41304123) ; 41304123) ; 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 ; Hundred Talents Program ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; National Science Foundation(AGS-1138784) ; National Science Foundation(AGS-1138784) ; 2016 T90573) ; 2016 T90573) ; 41421063 ; 41421063 ; 41025016 ; 41025016 ; 41304123) ; 41304123)
源URL[http://ir.iggcas.ac.cn/handle/132A11/52940]  
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
通讯作者Dou, Xiankang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Peoples R China
3.Univ Sci & Technol China, Sch Earth & Space Sci, Mengcheng Natl Geophys Observ, Hefei, Peoples R China
4.Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA
推荐引用方式
GB/T 7714		 Gu, Sheng-Yang,Liu, Han-Li,Pedatella, N. M.,et al. On the wave number 2 eastward propagating quasi 2day wave at middle and high latitudes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017,122(4):4489-4499.
APA Gu, Sheng-Yang,Liu, Han-Li,Pedatella, N. M.,Dou, Xiankang,&Liu, Yu.(2017).On the wave number 2 eastward propagating quasi 2day wave at middle and high latitudes.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,122(4),4489-4499.
MLA Gu, Sheng-Yang,et al."On the wave number 2 eastward propagating quasi 2day wave at middle and high latitudes".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122.4(2017):4489-4499.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。