Results 121 to 130 of about 2,209,995 (233)

Decadal preference of seasonal ENSO transition through a southern hemisphere climate mode

Environmental Research Letters
El Niño Southern Oscillation (ENSO) is the leading interannual coupled climate mode in the tropical Pacific. The seasonal transition of ENSO from boreal winter to the following summer can significantly affect the global climate.
Shikhar Srivastava, Arindam Chakraborty, Raghu Murtugudde   +2 more
doaj   +1 more source

Climate‐Driven Oceanographic Changes Shape Larval Dispersal Success in the Southern Ocean

Global Change Biology, Volume 32, Issue 11, November 2026.
We investigate how interannual variability in ocean circulation and egg production shapes larval dispersal and retention in suitable recruitment areas of a large body size deep‐sea fish species, Patagonian toothfish (Dissostichus eleginoides) around the Kerguelen Plateau.
Fanny Ouzoulias, Alex Nalivaev, Clara Péron, Amaël Dupaix, Éric Feunteun, Félix Massiot‐Granier   +5 more
wiley   +1 more source

A Machine Learning Framework for Objective Definition and Projection of Meteorological Seasons: An Application to the Indian Subcontinent

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Meteorological seasons are typically defined through fixed calendar intervals or region‐specific thresholds, yet such approaches fail to capture the actual variability of the annual cycle. Here we present a machine learning framework that objectively detects meteorological seasons and projects their future evolution.
Jacopo Grassi, Elisa Palazzi, Jost von Hardenberg, Paolo Davini   +3 more
wiley   +1 more source

Extratropical Tropopause Transition Layer Characteristics from High-Resolution Sounding Data [PDF]

, 2010
Accurate determination of the tropopause is important for applications such as dynamical analysis and forecasting, radiative transfer calculations, and the diagnosis of chemical transport in the atmosphere.
Homeyer, Cameron R.
core   +1 more source

Future Northeastward Shift of Extratropical Transition of Tropical Cyclones Over the North Atlantic in Downscaling Projections

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Tropical cyclones (TCs) often undergo extratropical transition (ET) at the midlatitudes, becoming post‐tropical cyclones (PTCs). We combine a logistic regression PTC identification model with synthetic TC tracks and intensities from the Columbia HAZard model (CHAZ) to project future ET completion over the North Atlantic (NA).
Dian‐Yi Li, Kevin A. Reed, Adam H. Sobel, Suzana J. Camargo, Colin M. Zarzycki, Chia‐Ying Lee, Boniface O. Fosu   +6 more
wiley   +1 more source

Rectified Effect of Synoptic‐Scale Atmospheric Eddies on Global Ocean‐Atmosphere Heat Exchanges

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Midlatitude oceans are characterized by vigorous turbulent heat flux (THF) from the ocean to the atmosphere. While the influence of sub‐weekly, synoptic‐scale atmospheric eddies on short‐term THF variability is well‐documented, their long‐term, “rectified” effect on air‐sea interactions remains poorly understood.
Satoru Okajima, Shoichiro Kido, Hiroyuki Tomita, Meghan F. Cronin   +3 more
wiley   +1 more source

Quaternary deep-thermocline cooling enhanced by southern Pacific Ocean tunnelling

Communications Earth & Environment
Tropical climate is considered to be one of the decisive keys to global climate dynamics. The extent to which extratropical forcing mechanisms contributed to changes of tropical heat and thus global changes in the climate system, however, is only poorly ...
J. Raddatz, C. Zeeden, J. F. Kniest, D. Nürnberg   +3 more
doaj   +1 more source

Interhemispheric Stratospheric Symmetry: Seasonal Precursors to Surface Extratropical Variability

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Seasonal prediction of surface climate relies on influences external to the troposphere, of which the stratosphere is a key source. The October stratosphere is particularly important for predictability of the coming winter and summer seasons in the Northern and Southern Hemisphere respectively, as the seasonal transition in zonal winds creates
Elizabeth Collingwood, Adam A. Scaife, Gareth J. Marshall, Bablu Sinha   +3 more
wiley   +1 more source

How Can the MJO's Planetary Scale Kelvin Wave and Synoptic Kelvin Waves Move at Different Phase Speeds in the Same Large‐Scale Environment?

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Equatorially trapped Kelvin waves can occur through the depth of the troposphere and beyond. Previous works have demonstrated that these waves respond profoundly to the background flows through which they propagate, leading to variation in phase speed and dispersion characteristics. Vertical variation in the background flow might allow for the
Paul E. Roundy
wiley   +1 more source

A study of tropical to extratropical cyclone transition in the western north Atlantic Ocean, 1963-1996 /

, 1999
The transformation of 45 tropical cyclones into extratropical cyclones over the western Noah Atlantic Ocean between 1963 and 1996 is studied. Cases are selected from the National Hurricane Center's "best track" archive.
Fogarty, Christopher T.
core