Results 91 to 100 of about 155,308 (238)

Tropical tropopause ozone modulated by tropopause height [PDF]

Atmospheric Chemistry and Physics
Ozone is a key radiative species near the tropical tropopause, which acts as a gateway to the stratosphere for ascending air. Ozone concentrations at fixed heights in this region fluctuate seasonally and interannually as the strength of stratospheric ...
S. Bourguet
doaj   +1 more source

A Data‐Driven Review of Geoscience Research Evolution Using SciBERT‐Based Topic and Network Analysis

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This review synthesises the evolution of global geoscience research from 2004 to 2023 using large‐scale bibliometric evidence. By combining keyword co‐occurrence network analysis with SciBERT‐based topic modelling, it identifies major paradigm transitions from geology‐centred research to climate‐focused studies and recent data‐ and AI‐driven ...
Sooyeon Han, Ju‐seop Kim
wiley   +1 more source

Changes in the polar vortex: Effects on Antarctic total ozone observations at various stations [PDF]

, 2011
October mean total column ozone data from four Antarctic stations form the basis for understanding the evolution of the ozone hole since 1960. While these stations show similar emergence of the ozone hole from 1960 to 1980, the records are divergent in ...
Bodeker, G. E., Hassler, Birgit, Solomon, Susan, Young, P. J.   +3 more
core   +3 more sources

Reaction Rate Coefficients and Adduct Formation in the Cl Atom + (E)‐CF3CF2CH=CHCF2CF3 Reaction

International Journal of Chemical Kinetics, Volume 58, Issue 10, Page 871-880, October 2026.
ABSTRACT In this work, rate coefficients for the Cl‐atom + (E)‐CF3CF2CH═CHCF2CF3 (HFO‐153‐10mczz, F22E) gas‐phase reaction were measured as a function of temperature and pressure, k(243–323 K, 50–300 Torr), using a pulsed laser photolysis‐resonance fluorescence (PLP‐RF) technique.
Maria‐Areti I. Spanoudaki, Daniel Van Hoomissen, Vassileios C. Papadimitriou, James B. Burkholder   +3 more
wiley   +1 more source

CO2 and N2O Emissions From Vehicles in Seoul Megacity, South Korea: Insights From Mixing Ratio and Stable Isotope Ratios

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Vehicular traffic is a major source of anthropogenic greenhouse gases in megacities; however, real‐world constraints on vehicle‐derived N2O emissions and their isotopic characteristics remain limited. Methods Air samples were collected from three tunnels and urban background sites (a university campus and mountain) in Seoul, South ...
Jeongeun Kim, Jinho Ahn, Sambit Ghosh, Sakae Toyoda, Shinji Morimoto, Hyunsuk Choi, Jaehoen Jung, Hungyu Lee   +7 more
wiley   +1 more source

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou, Su Jiang, Zhe Li, Bo Zhang, Danhe Wang, Dongqi Wang, Guitao Shi   +6 more
wiley   +1 more source

Chemical ozone loss in the Arctic winter 1991–1992 [PDF]

, 2007
Chemical ozone loss in winter 1991–1992 is recalculated based on observations of the HALOE satellite instrument, Version 19, ER-2 aircraft measurements and balloon data.
Tilmes, S., Müller, Rolf, C. R. Webster, Müller, R., R. J. Salawitch, Schmidt, Ulrich (Prof. Dr.), Oelhaf, Hermann, Schmidt, U., Camy-Peyret, Claude C., Webster, C. R., Oelhaf, H., H. Oelhaf, Russell III, J. M., Schmidt, Ulrich, R. Müller, Tilmes, Simone, Salawitch, Ross J., J. M. Russell III, C. C. Camy-Peyret, U. Schmidt, Salawitch, R. J., Webster, Christopher R., Salawitch, R.J., S. Tilmes, Camy-Peyret, C.C., Russell III., James M.   +25 more
core   +2 more sources

Attributing the Stratospheric Impacts From the Water‐Rich Explosive Hunga Volcanic Eruption of 2022

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The January 2022 Hunga volcanic eruption injected an unprecedented ∼150 Tg of water vapor (H2 ${\mathrm{H}}_{2}$O) and ∼0.4 Tg of sulfur dioxide (SO2 ${\text{SO}}_{2}$) into the stratosphere. Observational studies confirm that this perturbation triggered significant changes in stratospheric composition and dynamics.
Freja F. Østerstrøm, Colleen M. Golja, J. Eric Klobas, James G. Anderson, David M. Wilmouth   +4 more
wiley   +1 more source

A Causal Examination of the Solar Influence on Holocene Climate

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Variations in Total Solar Irradiance (TSI) have long been hypothesized to influence global mean surface temperature (GMST) on multidecadal to millennial timescales, but empirical evidence has remained elusive. Here, we explore the link between solar variability and climate over the pre‐industrial Holocene, when anthropogenic influences were ...
Jordan P. Landers, Julien Emile‐Geay, Alexander K. James, Stephan B. Munch, Deborah Khider, Edouard Bard   +5 more
wiley   +1 more source

Impact of Upper‐Level Warming on Tropical Cyclone Intensity

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Deep convection from tropical cyclones (TCs) can reach the height of the tropopause and as such an interaction between the upper troposphere and lower stratosphere is likely to occur. Such interactions have been reported in both numerical and observational studies, mainly showing that subsidence from the stratosphere into the eye of an ...
Giousef Alexandros Charinti, Andrea Davin, Andrea Polesello, Caroline Muller, Claudia Pasquero   +4 more
wiley   +1 more source