DOI: 10.1002/2016GL068148
论文题名: Lagrangian temperature and vertical velocity fluctuations due to gravity waves in the lower stratosphere
作者: Podglajen A. ; Hertzog A. ; Plougonven R. ; Legras B.
刊名: Geophysical Research Letters
ISSN: 0094-9129
EISSN: 1944-8860
出版年: 2016
卷: 43, 期: 7 起始页码: 3543
结束页码: 3553
语种: 英语
英文关键词: cirrus clouds
; gravity waves
; lower stratosphere
; polar stratospheric clouds
; tropical tropopause layer
Scopus关键词: Balloons
; Clouds
; Distribution functions
; Gravity waves
; Lagrange multipliers
; Probability distributions
; Spectroscopy
; Velocity distribution
; Cirrus clouds
; Lagrangian trajectories
; Lower stratosphere
; Microphysical process
; Non-gaussian distribution
; Polar stratospheric clouds
; Tropical tropopause layers
; Vertical velocity distribution
; Velocity
英文摘要: Wave-induced Lagrangian fluctuations of temperature and vertical velocity in the lower stratosphere are quantified using measurements from superpressure balloons (SPBs). Observations recorded every minute along SPB flights allow the whole gravity wave spectrum to be described and provide unprecedented information on both the intrinsic frequency spectrum and the probability distribution function of wave fluctuations. The data set has been collected during two campaigns coordinated by the French Space Agency in 2010, involving 19 balloons over Antarctica and 3 in the deep tropics. In both regions, the vertical velocity distributions depart significantly from a Gaussian behavior. Knowledge on such wave fluctuations is essential for modeling microphysical processes along Lagrangian trajectories. We propose a new simple parameterization that reproduces both the non-Gaussian distribution of vertical velocities (or heating/cooling rates) and their observed intrinsic frequency spectrum. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979487977&doi=10.1002%2f2016GL068148&partnerID=40&md5=4e8f9d2326abf7dbb56359a3dee49087
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10092
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Laboratoire de Météorologie Dynamique, CNRS-UMR8539, Institut Pierre Simon Laplace, École Normale Supérieure, École Polytechnique, Université Pierre et Marie Curie, Paris, France
Recommended Citation:
Podglajen A.,Hertzog A.,Plougonven R.,et al. Lagrangian temperature and vertical velocity fluctuations due to gravity waves in the lower stratosphere[J]. Geophysical Research Letters,2016-01-01,43(7).