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DOI | 10.5194/acp-18-12061-2018 |
Long-term observation of midlatitude quasi 2-day waves by a water vapor radiometer | |
Lainer, Martin1; Hocke, Klemens1,2; Kampfer, Niklaus1,2 | |
2018-08-22 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:16页码:12061-12074 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | A mesospheric water vapor data set obtained by the middle atmospheric water vapor radiometer (MIAWARA) close to Bern, Switzerland (46.88 degrees N, 7.46 degrees E) during October 2010 to September 2017 is investigated to study the long-term evolution and variability of quasi 2-day waves (Q2DWs). We present a climatological overview and an insight on the dynamical behavior of these waves with the occurring spectrum of periods as seen from a midlatitude observation site. Such a large and nearly continuous measurement data set as ours is rare and of high scientific value. The core results of our investigation indicate that the activity of the Q2DW manifests in burst-like events and is higher during winter months (November-February) than during summer months (May-August) for the altitude region of the mesosphere (up to 0.02 hPa in winter and up to 0.05 hPa in summer) accessible for the instrument. Single Q2DW events reach at most about 0.8 ppm in the H2O amplitudes. Further, monthly mean Q2DW amplitude spectra are presented and reveal a high-frequency variability between different months. A large fraction of identified Q2DW events (20 %) develop periods between 38 and 40 h. Further, we show the temporal evolution of monthly mean Q2DW oscillations continuously for all months and separated for single months over 7 years. The analysis of autobicoherence spectra gives evidence that Q2DWs are sometimes phase coupled to diurnal oscillations to a high degree and to waves with a period close to 18 h. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442397700004 |
WOS关键词 | PLANETARY-WAVES ; MIDDLE ATMOSPHERE ; LOWER THERMOSPHERE ; METEOR REGION ; GRAVITY-WAVES ; DIURNAL TIDE ; TIME-SERIES ; VARIABILITY ; MESOSPHERE ; WINTER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/28379 |
专题 | 地球科学 |
作者单位 | 1.Univ Bern, Inst Appl Phys, Bern, Switzerland; 2.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland |
推荐引用方式 GB/T 7714 | Lainer, Martin,Hocke, Klemens,Kampfer, Niklaus. Long-term observation of midlatitude quasi 2-day waves by a water vapor radiometer[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(16):12061-12074. |
APA | Lainer, Martin,Hocke, Klemens,&Kampfer, Niklaus.(2018).Long-term observation of midlatitude quasi 2-day waves by a water vapor radiometer.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(16),12061-12074. |
MLA | Lainer, Martin,et al."Long-term observation of midlatitude quasi 2-day waves by a water vapor radiometer".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.16(2018):12061-12074. |
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