Results 131 to 140 of about 34,894 (282)

Apportioning Sources of Nitrogen Oxides in California's San Joaquin Valley Using Observations From Three Airborne Field Campaigns

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Emissions of nitrogen oxides (NOx = NO + NO2), a precursor to ozone and secondary aerosol formation have become increasingly important to understand as ozone production transitions to NOx limited in most regions of the US. Recent studies suggest that NOx emissions associated with agricultural activities, particularly cropland soils, are an ...
Ilana B. Pollack, Andrew Rollins, Eleanor Waxman, Quazi Z. Rasool, Rebecca H. Schwantes, Jeff Peischl, Nell B. Schafer, Kristen Zuraski, Ann M. Middlebrook, Sarah Albertin, Alison Piasecki, Matthew Coggon, Chelsea E. Stockwell, Kelvin H. Bates, Michael A. Robinson, Christopher Jernigan, Jessica Gilman, Victoria Treadaway, Morgan Selby, Emily Lill, Emily V. Fischer, J. Robert Roscioli, Katherine Ball, Anne E. Perring, Ilann Bourgeois, Joshua P. Schwarz, Brian C. McDonald, Carsten Warneke, Steven S. Brown   +28 more
wiley   +1 more source

Super Warm Early Eocene Simulations With HadGEM3‐GC31‐LL

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract The early Eocene Climatic Optimum (EECO; 53.3–49.1 million years ago) represents the period of greatest sustained warmth in the Cenozoic (last 66 million years), with proxy‐data indicating global‐mean temperatures 10–16°C above preindustrial and atmospheric CO2 ${\text{CO}}_{2}$ concentrations of 1,200–2,500 ppmv.
Sebastian Steinig, Charles J. R. Williams, Natalie J. Burls, Marlow J. Cramwinckel, Alex Farnsworth, Gavin L. Foster, Peter O. Hopcroft, Gordon N. Inglis, Caroline H. Lear, Annette Osprey, Richard D. Pancost, Zikun Ren, William H. G. Roberts, Alistair A. Sellar, Emma L. Stone, Richard Wood, Jiang Zhu, Daniel J. Lunt   +17 more
wiley   +1 more source

A Generation Mechanism of Thorpe‐Detected Turbulence: A Case Study Using WRF Model Simulation

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Turbulence in the free atmosphere has been widely estimated using the Thorpe method, which identifies vertical inversions in potential temperature profiles as evidence of overturning. However, the mechanisms driving Thorpe‐detected turbulence remain poorly understood, due largely to limitations in spatial and temporal resolution of ...
Han‐Chang Ko, Hye‐Yeong Chun
wiley   +1 more source

Instrumental Artefacts Can Reverse Apparent Lightning–Climate Trends

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Lightning is an Essential Climate Variable, yet long‐term detection records may be compromised by changes in detection technology. Using more than three decades of Austrian lightning observations (1992–2024), we show that instrumental artefacts can reverse the apparent sign of lightning–climate trends.
Hannes Wieser, Wolfgang Schulz, Georg J. Mayr   +2 more
wiley   +1 more source

Detection and Analysis of an Upward Jet‐Like Electrical Discharge Intercepting a High‐Altitude Research Aircraft

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract During a 2023 field campaign, a NASA ER‐2 research aircraft intercepted an upward jet‐like electrical discharge at 20 km altitude over an intense tropical thunderstorm. This event was analyzed using airborne multispectral optical sensors, electric field mills, X‐band radar, passive microwave, and ground‐based radio networks.
T. J. Lang, A. Mezentsev, M. G. Quick, C. G. Amiot, M. Bateman, R. Blakeslee, S. Cummer, G. M. Heymsfield, R. A. Kroodsma, N. G. Lehtinen, D. Mach, M. Marisaldi, M. Walker McLinden, N. Østgaard, M. Pazos, D. A. S. Sarria, C. J. Schultz, T. D. Walker, O. van der Velde, K. Virts   +19 more
wiley   +1 more source

Reduced Longwave Absorption of Magnesium Sulfate Aerosol as an Alternative to Sulfuric Acid for Stratospheric Aerosol Injection

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Aqueous sulfuric acid is the benchmark sulfate aerosol for stratospheric aerosol injection (SAI), but H2SO4 ${\mathrm{H}}_{2}{\text{SO}}_{4}$/H2 ${\mathrm{H}}_{2}$O aerosol absorbs strongly in the infrared, producing longwave warming that significantly offsets its shortwave cooling. Here, we evaluate magnesium sulfate (MgSO4 ${\text{MgSO}}_{4}$
A. Odelskii, S. Malashevich, V. Shahabadi, N. R. VanDerZwan, A. Bain, J. F. Davies, T. C. Preston   +6 more
wiley   +1 more source

Why April Stands Out: Monthly Impacts of Internal Variability on Arctic Amplification

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Observed Arctic amplification (AA), defined as the ratio of Arctic‐mean to global‐mean surface air temperature (SAT) trends, peaks in April, a feature not captured by climate models. Here, we quantify the impact of internal variability on Arctic‐mean SAT trends in March, April, and May from 1980 to 2022 using multiple approaches, including ...
Skylar Gale, Qiang Fu, Hailong Wang, Edward Blanchard‐Wrigglesworth, Muyin Wang, Ash Gilbert, Aodhan Sweeney, Stephen Po‐Chedley   +7 more
wiley   +1 more source

Assessing Co‐Located NISAR and Sentinel‐1 Observations for Atmospheric Characterization

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Tropospheric delay remains one of the largest sources of uncertainty in repeat‐pass Interferometric Synthetic Aperture Radar (InSAR) measurements, while accurate three‐dimensional deformation retrieval continues to be limited by the geometry of current spaceborne SAR systems.
Shadi Oveisgharan, Paul Rosen, Christopher Wells, Emre Havazli   +3 more
wiley   +1 more source

Physician‐Scientist Pipeline for Pediatric Rheumatology: The Current Landscape and Future Perspectives

Arthritis Care &Research, Volume 78, Issue 10, Page 1324-1332, October 2026.
Over the past 50 years, the science of pediatric rheumatology has grown exponentially due to an expansion in the understanding of complex rheumatic conditions and a surge in novel targeted therapeutics. Physician‐scientists in the field of pediatric rheumatology have played major roles in these advancements that have improved the care of children ...
Ekemini A. Ogbu, Linda T. Hiraki, Mara L. Becker   +2 more
wiley   +1 more source

Role of natural halogen chemistry on the evolution of global stratospheric ozone depletion. [PDF]

Nat Commun
Villamayor J, Fernandez RP, Meidan D, Reynoso A, Cuevas CA, Kinnison DE, Saiz-Lopez A.   +6 more
europepmc   +1 more source