Results 11 to 20 of about 5,044 (260)
The Combined QBO and ENSO Influence on Tropical Cyclone Activity over the North Atlantic Ocean
Atmosphere, 2021 The Quasi-Biennal Oscillation (QBO) and the El Niño-Southern Oscillation (ENSO) largely modulate the zonal wind in the tropics. Previous studies showed that QBO phases produce changes in deep convection through an increase/decrease in the tropopause ...
Alejandro Jaramillo +3 more
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Modelling deep convection and its impacts on the tropical tropopause layer [PDF]
Atmospheric Chemistry and Physics, 2010 The UK Met Office's Unified Model is used at a climate resolution (N216, ~0.83°×~0.56°, ~60 km) to assess the impact of deep tropical convection on the structure of the tropical tropopause layer (TTL). We focus on the potential for
J. S. Hosking +3 more
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Shear-convection interactions, and orientation of tropical squall lines [PDF]
Geophysical Research Letters, 2021 Squall lines are known to be the consequence of the interaction of low-level shear with cold pools associated with convective downdrafts. Also, as the magnitude of the shear increases beyond a critical shear, squall lines tend to orient themselves at an angle to the shear. The existing literature suggests that this angle conserves the projection of the
Abramian, Sophie +2 more
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Stochastic and mesoscopic models for tropical convection [PDF]
Proceedings of the National Academy of Sciences, 2002 A new way to parametrize certain aspects of tropical convection through stochastic and mesoscopic models is developed here. The technical idea is to adapt tools from statistical physics and materials science to model important unresolved features of tropical convection.
Majda, Andrew J., Khouider, Boualem
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Simulating deep convection with a shallow convection scheme [PDF]
Atmospheric Chemistry and Physics, 2011 Convective processes profoundly affect the global water and energy balance of our planet but remain a challenge for global climate modeling. Here we develop and investigate the suitability of a unified convection scheme, capable of handling both shallow ...
C. Hohenegger, C. S. Bretherton
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Tropical cirrus clouds of convective and non-convective origins [PDF]
, 2022 Abstract. The occurrence of cirrus clouds in the tropics (24 °S–24 °N) is analyzed using the 2007–2015 monthly data from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and the fifth generation reanalysis product (ERA5) of the European Centre for Medium-Range Weather Forecasts.
Huang, Qin, Dinh, Tra
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Earth and Space Science, 2022 Cirrus clouds of various thicknesses and radiative characteristics extend over much of the tropics, especially around deep convection. They are difficult to observe due to their high altitude and sometimes small optical depths. They are also difficult to
S. M. Turbeville +4 more
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Model spread in tropical low cloud feedback tied to overturning circulation response to warming
Nature Communications, 2022 The magnitude of the tropical low cloud feedback, which contributes considerably to uncertainty in estimates of climate sensitivity, is closely linked to tropical deep convection and its effects on the tropical atmospheric overturning circulation.
Kathleen A. Schiro +9 more
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Influence of stratospheric sudden warming on the tropical intraseasonal convection
Environmental Research Letters, 2020 Madden–Julian oscillation (MJO), the dominant mode of intraseasonal variability in the tropical troposphere, has recently been shown to have a great impact on Northern Hemisphere (NH) extratropical stratosphere.
Feiyang Wang +3 more
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Tropical Cirrus in Global Storm‐Resolving Models: 1. Role of Deep Convection
Earth and Space Science, 2022 Pervasive cirrus clouds in the upper troposphere and tropical tropopause layer (TTL) influence the climate by altering the top‐of‐atmosphere radiation balance and stratospheric water vapor budget.
J. M. Nugent +4 more
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