Results 181 to 190 of about 305,398 (310)

Improving Representation of Stratospheric Polar Vortex in Southern Hemisphere With Low‐Frequency Frontal Waves

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract A common bias in global circulation models (GCMs) is an overly strong and thus too cold Southern Hemisphere (SH) wintertime stratospheric polar vortex with important implications for simulating the ozone hole. Additionally, the jet axis in GCMs is too straight in the vertical compared to reanalyses.
Martina Bramberger, Julio Bacmeister
wiley   +1 more source

Human Influence on Changes in Seasonal Extreme Precipitation Across Different Land Regions

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Globally, extreme precipitation has intensified annually, but large uncertainties remain at regional and seasonal scales. Detection and attribution analysis based on observations, climate models, and an updated optimal fingerprinting method that extreme precipitation has intensified significantly in all four seasons during 1950–2018 across the
Yuhan Dai   +6 more
wiley   +1 more source

Dynamic Mode Transitions and Intermittent Features of Magnetic Reconnection at the Magnetopause: MMS Observation

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract By analyzing continuous Magnetospheric Multiscale observations at the magnetopause boundary layer, combining both magnetohydrodynamic and kinetic signatures, we have successfully captured dynamic magnetic reconnection processes in exceptional detail. Our results demonstrate that magnetic reconnection exhibits rapid transitions between distinct
X.‐K. Wang   +12 more
wiley   +1 more source

Surface Wind Extremes Are Stronger in the Northern Hemisphere Oceans than in the Southern Ocean

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract While the Southern Ocean is known to have the strongest annual‐mean surface winds globally, it remains unclear whether surface wind extremes are stronger there than over the Northern Hemisphere basins. We address this question by analyzing reanalysis and satellite data sets and employing feature tracking to associate cyclones with surface ...
Aleksa Stanković, Rodrigo Caballero
wiley   +1 more source

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