Self-sustained Oscillations in the Atmosphere (0–110&thinsp;km) at Long Periods

doi:10.5194/acp-2020-89

GSTDTAP > 地球科学

DOI	10.5194/acp-2020-89
	Self-sustained Oscillations in the Atmosphere (0–110 km) at Long Periods
	Dirk Offermann, Christoph Kalicinsky, Ralf Koppmann, and Johannes Wintel
	2020-05-20
发表期刊	Atmospheric Chemistry and Physics
出版年	2020
英文摘要	Self-generated (self-sustained) oscillations have been observed in measured atmospheric data at multi-annual periods. These oscillations are also present in General Circulation Models even if their boundary conditions with respect to solar cycle, sea surface temperature, and trace gas variability are kept constant. The present analysis contains temperature oscillations with periods from below 5 yr up to 341 yr in an altitude range from the Earth’s surface to the lower thermosphere (110 km). The periods are quite robust as they are found to be the same in different model calculations and in atmospheric measurements. The oscillations show vertical profiles with special structures of amplitudes and phases. They form layers of high/low amplitudes that are a few dozen km wide. Within the layers the data are correlated. Adjacent layers are anticorrelated. A vertical displacement mechanism is indicated with displacement heights of a few 100 metres. Vertical profiles of amplitudes and phases of the various oscillation periods as well as their displacement heights are surprisingly similar. The oscillations are related to the thermal and dynamical structure of the middle atmosphere. These results are from latitudes/longitudes in Central Europe.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/270384
专题	地球科学
推荐引用方式 GB/T 7714	Dirk Offermann, Christoph Kalicinsky, Ralf Koppmann, and Johannes Wintel. Self-sustained Oscillations in the Atmosphere (0–110 km) at Long Periods[J]. Atmospheric Chemistry and Physics,2020.
APA	Dirk Offermann, Christoph Kalicinsky, Ralf Koppmann, and Johannes Wintel.(2020).Self-sustained Oscillations in the Atmosphere (0–110 km) at Long Periods.Atmospheric Chemistry and Physics.
MLA	Dirk Offermann, Christoph Kalicinsky, Ralf Koppmann, and Johannes Wintel."Self-sustained Oscillations in the Atmosphere (0–110 km) at Long Periods".Atmospheric Chemistry and Physics (2020).