Results 71 to 80 of about 10,278 (196)

Role of Future Climate Change, Air Pollution Control and Methane Mitigation in Driving Hydroxyl Radical (OH) and Methane Lifetime

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The hydroxyl radical (OH) determines the atmospheric lifetime of many pollutants like methane (CH4 ${\text{CH}}_{4}$). This study isolates climate change, air pollution control and CH4 ${\text{CH}}_{4}$ mitigation effects on OH concentrations ([OH]) and CH4 ${\text{CH}}_{4}$ lifetime, by analyzing Coupled Model Intercomparison Project Phase 6 (
G. Chua, V. Naik, L. W. Horowitz
wiley   +1 more source

Interannual Influence of Antarctic Sea Ice on Southern Hemisphere Stratosphere‐Troposphere Coupling

Geophysical Research Letters
While weakening of the boreal polar vortex may be caused by autumnal Arctic sea ice loss, less is known about the interannual influence of Antarctic sea ice on stratosphere‐troposphere coupling in the Southern Hemisphere.
Divya Rea, Dillon Elsbury, Amy H. Butler, Lantao Sun, Yannick Peings, Gudrun Magnusdottir   +5 more
doaj   +1 more source

Distinct Efficacy of Regional Methane Emissions in Affecting Global and Regional Concentrations: An Emission‐Driven CESM2 Modeling Study With Methane Tags

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The newly developed emission‐driven capability of CESM2 allows methane concentrations to be more realistically simulated based on emissions, transport, and atmospheric chemistry, rather than being prescribed as lower boundary conditions as in most previous global Earth system modeling studies.
Chuan Feng, Yangyang Xu, Mohammad Amin Mirrezaei, Rob Buechler, Benjamin Gaubert   +4 more
wiley   +1 more source

Intraseasonal Linkages of Winter Surface Air Temperature Between Eurasia and North America

Geophysical Research Letters
Wintertime temperature extremes sometimes show a continental linkage between Eurasia and North America (NA), but whether these connections are coincidental or dynamically robust remains unclear.
Xiaocen Shen, Lin Wang, Adam A. Scaife, Steven C. Hardiman   +3 more
doaj   +1 more source

A strong stratospheric harbinger for cold extremes: Weak polar vortex transition from displacement to split pattern

Weather and Climate Extremes
Weak stratospheric polar vortex (WSPV) events are dynamically connected with the variations in the tropospheric circulation, serving as crucial harbingers for surface cold extremes in the Northern Hemisphere.
Murong Zhang, Xiao-Yi Yang, Yipeng Huang
doaj   +1 more source

Annular variability and eddy-zonal flow interactions in a simplified atmospheric GCM. Part 1: Characterization of high and low frequency behaviour [PDF]

, 2008
Experiments have been performed using a simplified, Newtonian forced, global circulation model to investigate how variability of the tropospheric jet can be characterized by examining the combined fluctuations of the two leading modes of annular ...
Blackburn, Michael, Haigh, Joanna D, Sparrow, Sarah Naomi   +2 more
core   +1 more source

Impact of the AMOC Weakening on Upper Troposphere/Lower Stratosphere Warming Over the Extratropical North Pacific

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The Atlantic Meridional Overturning Circulation (AMOC) is a key regulator of the Earth's climate. Here using water hosing experiments with a coupled climate model, we show that a weakened AMOC leads to a significant boreal winter upper troposphere/lower stratosphere (UTLS) warming over the extratropical North Pacific (ENP).
Rajat Joshi, Rong Zhang
wiley   +1 more source

When Thunderstorms Reach the Stratosphere: Why Storm Structure May Matter for Climate

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Deep convection that overshoots the tropopause provides one of the fastest pathways for exchanging air between the troposphere and the stratosphere. Using extensive in situ observations from the dynamics and chemistry of the summer stratosphere (DCOTSS) campaign, Shepherd et al.
Francesco Cairo
wiley   +1 more source

On the surface impact of Arctic stratospheric ozone extremes

Environmental Research Letters, 2015
A comprehensive stratosphere-resolving atmospheric model, with interactive stratospheric ozone chemistry, coupled to ocean, sea ice and land components is used to explore the tropospheric and surface impacts of large springtime ozone anomalies in the ...
N Calvo, L M Polvani, S Solomon
doaj   +1 more source

Stratosphere‐troposphere coupling and annular mode variability in chemistry‐climate models [PDF]

, 2010
The internal variability and coupling between the stratosphere and troposphere in CCMVal‐2 chemistry‐climate models are evaluated through analysis of the annular mode patterns of variability.
Alexey Karpechko, Andrew Gettelman, Baldwin, Baldwin, Baldwin, Baldwin, Benedict, Christiansen, Christiansen, Dan Smale, David A. Plummer, Edwin P. Gerber, Eugene Rozanov, Eyring, Eyring, Eyring, Fioletov, Fogt, Gerber, Gerber, Gerber, Gerber, Gerber, Gerber, Graversen, Hella Garny, Hideharu Akiyoshi, Holland, J. Eric Nielsen, John A. Pyle, John Austin, John F. Scinocca, Kalnay, Keeley, Kidston, Lorenz, Lovenduski, Lu, Marion Marchand, Mark P. Baldwin, Martin Dameris, Martyn Chipperfield, McLandress, Meehl, Morgenstern, Morgenstern, Neal Butchart, North, Olaf Morgenstern, Peter Braesicke, Ring, Robinson, Rolando R. Garcia, Sandip Dhomse, Slimane Bekki, Son, Son, Stacey M. Frith, Steven C. Hardiman, Steven Pawson, Strong, Theodore G. Shepherd, Thompson, Thompson, Thompson, Thompson, Tom Peter, Uppala, Vallis, Wittman, Wittman, Woollings   +71 more
core   +3 more sources