Results 81 to 90 of about 746 (167)

Stratospheric Aerosol Particle Size Explains Divergent Limb and Solar Occultation Measurements After the Hunga Eruption

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The 2022 Hunga eruption significantly perturbed the stratosphere by injecting substantial water vapor and SO2 ${\text{SO}}_{2}$, drastically changing the Aerosol Optical Depth (AOD) and particle size. Post‐eruption, satellite limb‐scattering retrievals of aerosol extinction from Ozone Mapping and Profiler Suite Limb Profiler (OMPS‐LP) and ...
Cara Remai   +7 more
wiley   +1 more source

Enhanced Aerosol Mass in the Tropical Tropopause Layer Linked to Ozone Abundance

open access: yesGeophysical Research Letters
Aerosol particles play a critical role in the tropical tropopause layer (TTL) through cloud formation and heterogeneous chemistry, influencing the radiative and chemical balance of the stratosphere.
Shang Liu   +5 more
doaj   +1 more source

ANALISIS PERUBAHAN TROPICAL TROPOPAUSE LAYER DI BENUA MARITIM INDONESIA

open access: yesPROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017 UNJ, 2017
Temperature is an important parameter in climate change, and the temperature changes not only occur on the surface of the earth only. Tropical Tropopause Layer (TTL), a region which has the characteristic troposphere and stratosphere, a critical part of the atmosphere, a layer in the tropics between the main convective outflow level and the cold point,
Susanti, Indah, Sipayung, Sinta Berliana
openaire   +3 more sources

Aerosol layer near tropical tropopause [PDF]

open access: yesJournal of Aerosol Science, 1998
G.C. Asnani   +2 more
openaire   +1 more source

The Tropical Tropopause Layer – Detailed Thermal Structure, Decadal Variability and Recent Trends

open access: yes, 2015
The tropical tropopause layer (TTL) is a key region for troposphere- stratosphere exchange and acts as a “gate” for trace gases entering the stratosphere. In particular, tropical tropopause temperatures (TPTs) control the content of stratospheric water vapour, which influences stratospheric chemistry, radiation and circulation and is also an important ...
openaire   +2 more sources

Mixing processes and exchanges in the tropical and the subtropical UT/LS [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
Both in situ measurements and satellite observations indicate evidence of mixing in the upper troposphere (UT) and the lower-stratosphere (LS). In this study, the measurements performed during the Pre-AVE and Costa-Rica AVE campaigns are analysed with ...
R. James, B. Legras
doaj  

The SCOUT-O3 Darwin Aircraft Campaign: rationale and meteorology [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
An aircraft measurement campaign involving the Russian high-altitude aircraft M55 Geophysica and the German DLR Falcon was conducted in Darwin, Australia in November and December 2005 as part of the European integrated project SCOUT-O3.
D. Brunner   +14 more
doaj  

Ice nucleation and cloud microphysical properties in tropical tropopause layer cirrus [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
In past modeling studies, it has generally been assumed that the predominant mechanism for nucleation of ice in the uppermost troposphere is homogeneous freezing of aqueous aerosols.
E. J. Jensen   +4 more
doaj  

Constraining the Stratospheric Sulfate Budget in Global Models: Insights From In Situ OCS Measurements During 2023 SABRE and Comparison With Satellite, Balloon and Surface Data

open access: yesGeophysical Research Letters
In situ carbonyl sulfide (OCS) measurements from the Stratospheric Aerosol processes, Budget and Radiative Effects (SABRE) 2023 airborne campaign are used to evaluate the sulfate budget in the Arctic stratosphere during boreal winter.
Colin Gurganus   +16 more
doaj   +1 more source

Indications of thin cirrus clouds in the stratosphere at mid-latitudes [PDF]

open access: yesAtmospheric Chemistry and Physics, 2005
This study is devoted to the possible presence of cirrus clouds in the stratosphere. Three months of lidar data collected in the south of France (44° N) for detection of stratospheric cirrus are carefully analyzed. Most of the cirrus clouds appear to
P. Keckhut   +5 more
doaj  

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