Lagrangian simulation of ice particles and resulting dehydration in the polar winter stratosphere [PDF]
Polar stratospheric clouds (PSCs) and cold stratospheric aerosols drive heterogeneous chemistry and play a major role in polar ozone depletion. The Chemical Lagrangian Model of the Stratosphere (CLaMS) simulates the nucleation, growth, sedimentation, and
I. Tritscher +6 more
doaj +1 more source
3-D tomographic limb sounder retrieval techniques: irregular grids and Laplacian regularisation [PDF]
Multiple limb sounder measurements of the same atmospheric region taken from different directions can be combined in a 3-D tomographic retrieval. Mathematically, this is a computationally expensive inverse modelling problem.
L. Krasauskas +6 more
doaj +1 more source
A comprehensive observational filter for satellite infrared limb sounding of gravity waves [PDF]
This paper describes a comprehensive observational filter for satellite infrared limb sounding of gravity waves. The filter considers instrument visibility and observation geometry with a high level of accuracy.
Q. T. Trinh +6 more
doaj +1 more source
Diagnosing the stratosphere-to-troposphere flux of ozone in a chemistry transport model [PDF]
[1] Events involving stratosphere-troposphere exchange (STE) of ozone, such as tropopause folds and westerly ducts, are readily identified in observations and models, but a quantitative flux specifying where and when stratospheric ozone is mixed into the
Hsu, Juno, Prather, M J, Wild, O
core +5 more sources
Limited angle tomography of mesoscale gravity waves by the infrared limb-sounder GLORIA [PDF]
Three-dimensional measurements of gravity waves are required in order to quantify their direction-resolved momentum fluxes and obtain a better understanding of their propagation characteristics.
I. Krisch +4 more
doaj +1 more source
Stratosphere-troposphere exchange: An angular momentum perspective [PDF]
The exchange of axial angular momentum (AM) between stratosphere and troposphere forms an important part of stratosphere–troposphere exchange (STE). Data are used to quantify the related fluxes through an idealized tropopause for specific flux events ...
Egger, Joseph +3 more
core +1 more source
Stratospheric water vapour and ozone response to the quasi-biennial oscillation disruptions in 2016 and 2020 [PDF]
The quasi-biennial oscillation (QBO) is a major mode of climate variability in the tropical stratosphere with quasi-periodically descending westerly and easterly winds, modulating transport and distributions of key greenhouse gases such as water vapour ...
M. A. Diallo +10 more
doaj +1 more source
Effects of stratosphere-troposphere chemistry coupling on tropospheric ozone [PDF]
[1] A new, computationally efficient coupled stratosphere-troposphere chemistry-climate model (S/T-CCM) has been developed based on three well-documented components: a 64-level general circulation model from the UK Met Office Unified Model, the ...
Tian, W +23 more
core +1 more source
How stratospheric are deep stratospheric intrusions? [PDF]
Abstract. Preliminary attempts of quantifying the stratospheric ozone contribution in the observations at the Zugspitze summit (2962 m a.s.l.) next to Garmisch-Partenkirchen in the German Alps had yielded an approximate doubling of the stratospheric fraction of the Zugspitze ozone during the time period 1978 and 2004.
T. Trickl +5 more
openaire +9 more sources
Downward Control from Lower Stratosphere? [PDF]
The concept of downward control proposes a mechanism for the impact of the stratospheric circulation on the troposphere. Momentum forcing at upper-stratospheric levels induces a meridional circulation that eventually reaches the surface.
Egger, Joseph, Hoinka, Klaus-Peter
core +1 more source

