Results 1 to 10 of about 326 (66)

Clouds and Radiation in a Mock-Walker Circulation

open access: yesJournal of Advances in Modeling Earth Systems, 2021
The Walker circulation connects the regions with deep atmospheric convection in the western tropical Pacific to the shallow‐convection, tropospheric subsidence, and stratocumulus cloud decks of the eastern Pacific.
Thomas Robinson, Levi G Silvers
exaly   +2 more sources

Colder Eastern Equatorial Pacific and Stronger Walker Circulation in the Early 21st Century: Separating the Forced Response to Global Warming From Natural Variability

open access: yesGeophysical Research Letters, 2023
Since the early 1990s the Pacific Walker circulation shows a multi‐decadal strengthening, which contradicts future model projections. Whether this trend, evident in many climate indices especially before the 2015 El Niño, reflects the coupled ocean ...
Alexey Fedorov, Ulla Heede
exaly   +2 more sources

Common and Distinct Drivers of Convective Mass Flux and Walker Circulation Changes

open access: yesGeophysical Research Letters
The weakening of convective mass flux and the Walker circulation is one of the most robust responses to global warming. However, recent decades have seen the Pacific Walker circulation strengthen despite a weakening convective mass flux. Here, we conduct
Masahiro Watanabe   +2 more
exaly   +2 more sources

Two Competing Drivers of the Recent Walker Circulation Trend

open access: yesGeophysical Research Letters, 2023
The Pacific Walker circulation (PWC) weakens under global warming in climate change projections, supported by a global hydrological constraint. However, the PWC has strengthened over the past decades despite ongoing global warming, and the cause has been
Yue Dong   +2 more
exaly   +2 more sources

Synchronized spatial shifts of Hadley and Walker circulations [PDF]

open access: yesEarth System Dynamics, 2021
The El Niño–Southern Oscillation (ENSO) influences the most extensive tropospheric circulation cells on our planet, known as Hadley and Walker circulations.
K.-S. Yun   +4 more
doaj   +1 more source

Indices of Pacific Walker Circulation Strength

open access: yesAtmosphere, 2023
The Pacific Walker circulation (PWC) significantly affects the global weather patterns, the distribution of mean precipitation, and modulates the rate of global warming.
Katarina Kosovelj, Žiga Zaplotnik
doaj   +1 more source

Tropical atmospheric circulation response to the G1 sunshade geoengineering radiative forcing experiment [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
We investigate the multi-Earth system model response of the Walker circulation and Hadley circulations under the idealized solar radiation management scenario (G1) and under abrupt4xCO2.
A. Guo   +4 more
doaj   +1 more source

Tropical convective transport and the Walker circulation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
We introduce a methodology to visualise rapid vertical and zonal tropical transport pathways. Using prescribed sea-surface temperatures in four monthly model integrations for 2005, we characterise preferred transport routes from the troposphere to the ...
J. S. Hosking   +3 more
doaj   +1 more source

Impact of the Indo-Pacific Warm Pool on the Hadley, Walker, and Monsoon Circulations

open access: yesAtmosphere, 2020
The Indo-Pacific warm pool (IPWP) is enclosed by a 28 °C isotherm and plays a vital role in controlling atmospheric circulations. However, the effects of changes in regional warm pool sea surface temperatures (SSTs) remain unexplored. We divided the IPWP
Hye-Ryeom Kim   +4 more
doaj   +1 more source

Similar patterns of tropical precipitation and circulation changes under solar and greenhouse gas forcing

open access: yesEnvironmental Research Letters, 2021
Theory and model evidence indicate a higher global hydrological sensitivity for the same amount of surface warming to solar as to greenhouse gas (GHG) forcing, but regional patterns are highly uncertain due to their dependence on circulation and dynamics.
Stergios Misios   +10 more
doaj   +1 more source

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