气候变化领域集成服务门户(CCPortal): Signatures of gravity wave-induced instabilities in balloon lidar soundings of polar mesospheric clouds

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DOI	10.5194/acp-23-949-2023
	Signatures of gravity wave-induced instabilities in balloon lidar soundings of polar mesospheric clouds
	Kaifler, Natalie; Kaifler, Bernd; Rapp, Markus; Fritts, David C.
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	949
结束页码	961
卷号	23 期号:2 页码:13
英文摘要	The Balloon Lidar Experiment (BOLIDE), which was part of the Polar Mesospheric Cloud Turbulence (PMC Turbo) Balloon Mission has captured vertical profiles of PMCs during a 6 d flight along the Arctic circle in July 2018. The high-resolution soundings (20 m vertical and 10 s temporal resolution) reveal highly structured layers with large gradients in the volume backscatter coefficient. We systematically screen the BOLIDE dataset for small-scale variability by assessing these gradients at high resolution. We find longer tails of the probability density distributions of these gradients compared to a normal distribution, indicating intermittent behaviour. The high occurrence rate of large gradients is assessed in relation to the 15 min averaged layer brightness and the spectral power of short-period (5-62 min) gravity waves based on PMC layer altitude variations. We find that variability on small scales occurs during weak, moderate, and strong gravity wave activity. Layers with below-average brightness are less likely to show small-scale variability in conditions of strong gravity wave activity. We present and discuss the signatures of this small-scale variability, and possibly related dynamical processes, and identify potential cases for future case studies and modelling efforts.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000913526700001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273352
作者单位	Helmholtz Association; German Aerospace Centre (DLR)
推荐引用方式 GB/T 7714	Kaifler, Natalie,Kaifler, Bernd,Rapp, Markus,et al. Signatures of gravity wave-induced instabilities in balloon lidar soundings of polar mesospheric clouds[J],2023,23(2):13.
APA	Kaifler, Natalie,Kaifler, Bernd,Rapp, Markus,&Fritts, David C..(2023).Signatures of gravity wave-induced instabilities in balloon lidar soundings of polar mesospheric clouds.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(2),13.
MLA	Kaifler, Natalie,et al."Signatures of gravity wave-induced instabilities in balloon lidar soundings of polar mesospheric clouds".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.2(2023):13.