Results 121 to 130 of about 12,264 (254)

Multiphase and Heterogeneous O3 Chemistry on Aerosol and Infrastructural Surfaces Drives Cl2 Sources in a Coastal City

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Molecular chlorine (Cl2) is a key source of chlorine atoms (Cl∙) in the atmosphere, which can alter local oxidation chemistry and enhance both ozone (O3) and particulate matter. While Cl2 levels in some coastal cities can be substantial and are enhanced by particulate nitrate, the presence and impact of Cl2 in US cities is poorly understood ...
Katelyn L. Richard, Michael P. Vermeuel, Emily Franklin, Rose K. Rossell, Adam De Groodt, Trey A. Maddaleno, Andrew Hallward‐Driemeier, Yuwei Zhao, Mitchell J. Rogers, Drew R. Gentner, Rachel O’Brien, Róisín Commane, Dylan B. Millet, Delphine K. Farmer   +13 more
wiley   +1 more source

Assessing the Accuracy of Global HFC-134a Satellite Observations from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) via Aircraft, Balloon, and Model Comparisons. [PDF]

Environ Sci Technol
Li Y, Li J, Chen Y, Zhang L, Montzka SA, Vimont I, Crotwell M, Liu S, Li X, Fu W, Zhang P, Zhang X, Wu X, Zhang J, Huang Y, Luan X, Shen H, Ye J, Wang C, Yang X, Fu TM, Zhu L.   +21 more
europepmc   +1 more source

The Influence of Aged Smoke on Urban Ozone: Aircraft Measurements in Chicago During the 2023 Canadian Wildfires

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract As large wildfires become more frequent and severe in North America due to heightened fuel aridity and fire weather conditions driven by anthropogenic climate change, wildfire smoke has an increasingly important influence on air quality. Transported smoke can impact urban boundary layer ozone (O3) directly, via the entrainment of O3 formed in ...
W. S. Chace, C. Womack, A. Ahern, K. Ball, K. H. Bates, B. Bohn, C. A. Brock, M. Coggon, J. D. Crounse, N. Desai, H. Fuchs, J. Gilman, J. Gristey, H. N. Huynh, R. Jackson, C. M. Jernigan, J. Kaiser, M. Lin, M. Lyu, A. M. Middlebrook, G. A. Novak, A. Novelli, J. Peischl, A. Piasecki, M. A. Robinson, A. Rollins, N. B. Schafer, M. Selby, C. Senff, A. Stainsby, C. E. Stockwell, S. J. Taylor, S. Thakali, V. Treadaway, P. R. Veres, C. Warneke, E. Waxman, P. O. Wennberg, G. M. Wolfe, L. Xu, K. Zuraski, S. S. Brown   +41 more
wiley   +1 more source

Regional drying over the Western U.S. driven by enhanced atmospheric subsidence amid global moistening from 1980 to 2020. [PDF]

Nat Commun
Ding Q, Shaw T, Wang H, Baxter I, Zhu J.
europepmc   +1 more source

Structure, Propagation and Variability of the 5‐Day Rossby‐Haurwitz Wave

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract The 5‐day wave is the gravest free Rossby mode predicted by the Laplace shallow water equations, with a latitudinally symmetric, zonal wavenumber one theoretical structure in geopotential extending from pole to pole. It propagates westward along the equator at about 98 m s−1 ${\mathrm{s}}^{-1}$ and was first observed in surface pressure data ...
G. N. Kiladis, R. A. Madden
wiley   +1 more source

Vorticity budget analysis of a mesoscale convective vortex during the July 2022 flash flood in Northern Tehran. [PDF]

Sci Rep
Pegahfar N, Gharaylou M, Alizadeh O.
europepmc   +1 more source

An Index to Characterize the South Indian Ocean High‐Pressure System and Its Variability

Atmospheric Science Letters, Volume 27, Issue 8, August 2026.
The South Indian Ocean subtropical high steers rainfall and drought across southern Africa, Australia, and the surrounding islands, yet it lacked a consistent measure of its behavior. Using an index built from 84 years of atmospheric pressure data, this study shows the high alternates between two distinct states, a strong southeastern position and a ...
Kwesi Akumenyi Quagraine, Kwesi Twentwewa Quagraine, Francis Nkrumah, Bruce Hewitson, Mark Tadross, Nana Ama Browne Klutse   +5 more
wiley   +1 more source

Isotopic constraints on the origin of reactive chlorine in the troposphere. [PDF]

Sci Adv
Zong Z, Xia M, Lin C, Chen X, Xue L, Li Q, Jiang Y, Tian C, Fan X, Yuan Q, Wang X, Zhu Y, Zhang J, Lee S, Mu Y, Li J, Fu X, Ren C, Huang X, Yan C, Nie W, Badia A, Zhang G, Ding A, Huang RJ, Kulmala M, Saiz-Lopez A, Wang T, Wang W.   +28 more
europepmc   +1 more source

Damaging Surface Hail in Simulations of Satellite‐Detected Hailstorms in Australia's Tropics

Atmospheric Science Letters, Volume 27, Issue 8, August 2026.
Satellite detections of hail signatures are uncertain in the tropics, where the deep troposphere increases the chances that ice detected aloft will melt before it reaches the surface. We used numerical weather simulations to examine the plausibility of damaging surface hail at times and locations when satellites detected hail signatures over Australia ...
Timothy H. Raupach, Sarah D. Bang, John T. Allen   +2 more
wiley   +1 more source

Atmospheric Chemistry Insights from the Global COVID-19 Pandemic: A Review. [PDF]

Environ Sci Technol
Heald CL, Kroll JH, Murphy JG, Farmer DK, Fry JL.   +4 more
europepmc   +1 more source