Polar stratospheric clouds: Satellite observations, processes, and role in ozone depletion

I Tritscher, MC Pitts, LR Poole… - Reviews of …, 2021 - Wiley Online Library
Polar stratospheric clouds (PSCs) play important roles in stratospheric ozone depletion
during winter and spring at high latitudes (eg, the Antarctic ozone hole). PSC particles …

Tropical temperature variability in the UTLS: New insights from GPS radio occultation observations

B Scherllin-Pirscher, AK Steiner, RA Anthes… - Journal of …, 2021 - journals.ametsoc.org
Global positioning system (GPS) radio occultation (RO) observations, first made of Earth's
atmosphere in 1995, have contributed in new ways to the understanding of the thermal …

[HTML][HTML] Polar stratospheric cloud climatology based on CALIPSO spaceborne lidar measurements from 2006 to 2017

MC Pitts, LR Poole, R Gonzalez - Atmospheric Chemistry and …, 2018 - acp.copernicus.org
The Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) on the CALIPSO (Cloud-
Aerosol Lidar and Infrared Pathfinder Satellite Observations) satellite has been observing …

Mixed‐phase clouds and precipitation in Southern Ocean cyclones and cloud systems observed poleward of 64° S by ship‐based cloud radar and lidar

SP Alexander, GM McFarquhar… - Journal of …, 2021 - Wiley Online Library
Abstract Mixed‐phase clouds (MPCs), composed of both liquid and ice, are prevalent in
Southern Ocean cyclones. A characterization of these clouds on fine vertical scales is …

A decadal satellite record of gravity wave activity in the lower stratosphere to study polar stratospheric cloud formation

L Hoffmann, R Spang, A Orr… - Atmospheric …, 2016 - acp.copernicus.org
Atmospheric gravity waves yield substantial small-scale temperature fluctuations that can
trigger the formation of polar stratospheric clouds (PSCs). This paper introduces a new …

Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART

M Weimer, J Buchmüller, L Hoffmann… - Atmospheric …, 2021 - acp.copernicus.org
Polar stratospheric clouds (PSCs) are a driver for ozone depletion in the lower polar
stratosphere. They provide surface for heterogeneous reactions activating chlorine and …

[HTML][HTML] Stratospheric mountain waves trailing across northern Europe

A Dörnbrack - Journal of the Atmospheric Sciences, 2021 - journals.ametsoc.org
Planetary waves disturbed the hitherto stable Arctic stratospheric polar vortex in the middle
of January 2016 in such a way that unique tropospheric and stratospheric flow conditions for …

A comparison of Loon balloon observations and stratospheric reanalysis products

LS Friedrich, AJ McDonald, GE Bodeker… - Atmospheric …, 2017 - acp.copernicus.org
Location information from long-duration super-pressure balloons flying in the Southern
Hemisphere lower stratosphere during 2014 as part of X Project Loon are used to assess …

Seasonal and latitudinal variability of the gravity wave spectrum in the lower stratosphere

EA Lindgren, A Sheshadri, A Podglajen… - Journal of …, 2020 - Wiley Online Library
Superpressure balloon data of unprecedented coverage from Loon LLC is used to
investigate the seasonal and latitudinal variability of lower stratospheric gravity waves over …

Gravity wave spectra in the lower stratosphere diagnosed from project loon balloon trajectories

MR Schoeberl, E Jensen, A Podglajen… - Journal of …, 2017 - Wiley Online Library
Project Loon has been launching superpressure balloons since January 2013 to provide
worldwide Internet coverage. These balloons typically fly between 18 and 21 km and …