Results 81 to 90 of about 5,189 (258)
Reynolds stresses and mean fields generated by pure waves: applications to shear flows and convection in a rotating shell [PDF]
, 2008 A general reformulation of the Reynolds stresses created by two-dimensional waves breaking a translational or a rotational invariance is described. This reformulation emphasizes the importance of a geometrical factor: the slope of the separatrices of the
Simitev, R. +6 more
core +1 more source
Alaskan Ridge Blocking and Associated Winter Cold Conditions Over North America
International Journal of Climatology, Volume 46, Issue 8, 30 June 2026.Multi‐decadal (1979–2023) analysis reveals that wintertime reductions in the meridional gradient of potential vorticity (PVy) over the Bering Sea are recurrent but episodic features of North Pacific circulation. These suppressed PVy states consistently co‐occur with amplified Alaskan ridging, weakened mid‐tropospheric westerlies and a downstream warm ...
Varunesh Chandra +2 more
wiley +1 more source
Formation and Arrest of a Surface Density Front via Strain‐Driven Frontogenesis
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Ocean fronts play a key role in the vertical transport of heat, energy and biogeochemical tracers, but their behavior and life cycle is not well‐understood, especially at smaller scales. We present a large‐eddy simulation of mixed layer frontogenesis capturing the onset of a submesoscale regime from a larger scale, rotation‐dominated front ...
Erin Atkinson, Nicolas Grisouard
wiley +1 more source
Baroclinic Submesoscale Eddies in the Ross Ice Shelf Cavity Alter Heat Pathways to the Ice Base
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The influence of baroclinic submesoscale eddies on basal melting beneath Ross Ice Shelf remains poorly understood. We analyzed a 4.5‐year mooring record from the central cavity and identified seven eddy‐like events from variability in density, velocity, and thermohaline structure, with horizontal scales (∼11 km) characteristic of submesoscale ...
Yingpu Xiahou +2 more
wiley +1 more source
, 2022 Upper-level Rossby wave packets (RWPs) are one of the key drivers of surface weather. RWPs can lead to extreme surface weather events. However, extreme impacts can also arise from long spells of persistent weather. Recurrence of synoptic-scale RWPs, termed RRWPs, where RWPs recur in the same phase over a short period, can also lead to persistent ...
openaire +1 more source
Reduced Distinctiveness of Extreme El Niño Teleconnections in Warmer Climates
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract In today's climate, extreme El Niño events (e.g., 1982–1983, 1997–1998) generate stronger and eastward‐shifted teleconnections relative to moderate El Niño and La Niña events, leading to distinct North American impacts such as enhanced rainfall over California and warming over northeastern North America.
Margot Beniche +3 more
wiley +1 more source
SOFT Development of feature tracking methods [PDF]
, 2003 The present report describes the work carried out within task 3.1 of Work Package 3 of the SOFT Project. The above task is ‘Development of feature tracking methods’ and consists of the development of a software to track large-scale, westward propagating ...
Challenor, Peter, Cipollini, Paolo
core
Process-oriented evaluation of quasi-stationary Rossby waves and their impact on surface air temperature extremes in dynamical downscaling over North America [PDF]
Geoscientific Model DevelopmentQuasi-stationary Rossby waves are a crucial component of the general circulation and play a significant role in regional water and energy cycles, as well as in extreme events.
K. Sakaguchi +7 more
doaj +1 more source
Drying Effect of Landfalling Tropical Cyclones
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The high precipitation efficiency of tropical cyclones (TCs) is theorized to dehydrate the atmosphere, a process with important climate implications that has yet to be confirmed by direct observational evidence. Using satellite and reanalysis data, this study statistically examines the drying effect of landfalling TCs. Results indicate a local
Yazhu Yang +4 more
wiley +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.Abstract This study examines the large‐scale atmospheric response to reduced evapotranspiration during droughts in the Western U.S., using an observation‐based regression method and numerical experiments with a global climate model. We found that Western U.S.
A. C. T. Sena, I. N. Williams
wiley +1 more source