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DOI | 10.1029/2019JD031170 |
Signature of a Quasi 30-Day Oscillation at Midlatitude Based on Wind Observations From MST Radar and Meteor Radar | |
Huang, Kai Ming1,2,3; Xi, Yu1,3,4; Wang, Rui5; Zhang, Shao Dong1,2; Huang, Chun Ming1,2; Gong, Yun1,2; Cheng, Hao1,2 | |
2019-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:21页码:11266-11280 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Lots of works make contributions to revealing propagation features and excitation mechanisms of intraseasonal oscillations (ISOs) in the tropics; however, there are few reports on ISOs at higher latitudes. By using measurements of mesosphere-stratosphere-troposphere radar at Xianghe (39.8 degrees N, 116.5 degrees E) and meteor radar at Beijing (40.3 degrees N, 116.2 degrees E) and reanalysis data for 105 days from 16 November 2013 to 28 February 2014, we study an ISO with about 30-day period at midlatitude and high latitude. Radar observations indicate that in the troposphere, the oscillation attains an amplitude peak in zonal wind at about 9 km and propagates downward below 9 km. At about 9-16 km, the oscillation gradually decays with height and then strengthens again as it propagates upward in the stratosphere. In the mesosphere, the oscillation obviously appears at 78-86 km with a maximum amplitude at 80 km. Reanalysis data show that in the troposphere, the oscillation propagates southward. At about 100 (similar to 16 km)- to 10 (similar to 32 km)-hPa levels, the oscillation is gradually reflected back to propagate northward, and then propagates poleward at higher altitude. Refractive index can explain its complex propagation characteristics very well. Consistence and coherence of its phase progression indicate that in the lower atmosphere, the oscillation comes from the polar region. Hence, ISOs can not only originate from but also propagate in the atmosphere at mid and high latitudes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499270600015 |
WOS关键词 | INTRASEASONAL OSCILLATIONS ; EQUATORIAL MESOSPHERE ; SEASONAL-VARIATIONS ; ZONAL WIND ; ATMOSPHERE ; WAVE ; VARIABILITY ; PROPAGATION ; TROPICS ; SYSTEM |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225780 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Wuhan Univ, Sch Elect Informat, Wuhan, Hubei, Peoples R China; 2.Minist Educ, Key Lab Geospace Environm & Geodesy, Wuhan, Hubei, Peoples R China; 3.State Observ Atmospher Remote Sensing, Wuhan, Hubei, Peoples R China; 4.Univ Sci & Technol China, Chinese Acad Sci, Key Lab Geospace Environm, Hefei, Anhui, Peoples R China; 5.Polar Res Inst China, SOA Key Lab Polar Sci, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, Kai Ming,Xi, Yu,Wang, Rui,et al. Signature of a Quasi 30-Day Oscillation at Midlatitude Based on Wind Observations From MST Radar and Meteor Radar[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(21):11266-11280. |
APA | Huang, Kai Ming.,Xi, Yu.,Wang, Rui.,Zhang, Shao Dong.,Huang, Chun Ming.,...&Cheng, Hao.(2019).Signature of a Quasi 30-Day Oscillation at Midlatitude Based on Wind Observations From MST Radar and Meteor Radar.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(21),11266-11280. |
MLA | Huang, Kai Ming,et al."Signature of a Quasi 30-Day Oscillation at Midlatitude Based on Wind Observations From MST Radar and Meteor Radar".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.21(2019):11266-11280. |
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