Results 41 to 50 of about 8,818 (209)

Slow Manifolds and Multiple Equilibria in Stratocumulus-Capped Boundary Layers

open access: yesJournal of Advances in Modeling Earth Systems, 2010
In marine stratocumulus-capped boundary layers under strong inversions, the timescale for thermodynamic adjustment is roughly a day, much shorter than the multiday timescale for inversion height adjustment. Slow-manifold analysis is introduced to exploit
Junya Uchida   +2 more
doaj   +1 more source

On the Trend in Below-Cloud Solar Irradiance in The Netherlands versus That in Aerosol Sulfate Concentration

open access: yesAtmosphere, 2022
The below-cloud irradiance in The Netherlands increased by over 10 Wm−2 in the past half century. It was hypothesized that this could be due to a decrease in the aerosol serving as cloud condensation nuclei, on which the cloud droplets form, in the ...
Suzanne Crumeyrolle   +2 more
doaj   +1 more source

Unified Parameterization of Convective Boundary Layer Transport and Clouds With the Thermal Plume Model

open access: yesJournal of Advances in Modeling Earth Systems, 2019
The representation of stratocumulus clouds, and of the stratocumulus to cumulus transitions which are ubiquitous features of marine boundary layer clouds, remains a challenge for climate models.
Frédéric Hourdin   +7 more
doaj   +1 more source

Stratocumulus cloud thickening beneath layers of absorbing smoke aerosol [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
Marine stratocumulus cloud properties, and the free-tropospheric environment above them, are examined in NASA A-Train satellite data for cases where smoke from seasonal burning of the West African savannah overlay the persistent southeast Atlantic ...
E. M. Wilcox
doaj   +1 more source

Cloud-Top Entrainment in Stratocumulus Clouds

open access: yesAnnual Review of Fluid Mechanics, 2017
Cloud entrainment, the mixing between cloudy and clear air at the boundary of clouds, constitutes one paradigm for the relevance of small scales in the Earth system: By regulating cloud lifetimes, meter- and submeter-scale processes at cloud boundaries can influence planetary-scale properties.
openaire   +4 more sources

In‐cloud turbulence structure of marine stratocumulus [PDF]

open access: yesGeophysical Research Letters, 2010
This study quantifies the level of turbulence inside the marine stratocumulus cloud deck over Pt. Reyes, CA, during the Marine Stratus Radiation, Aerosol, and Drizzle Experiment (MASRAD) in July 2005, and identifies the dominant sources of turbulent kinetic energy.
J. Ching, N. Riemer, M. Dunn, M. Miller
openaire   +1 more source

Absorption feedback in stratocumulus clouds Influence on cloud top albedo

open access: yesTellus A: Dynamic Meteorology and Oceanography, 1994
This paper proposes a feedback mechanism which modifies the enhancement of cloud top albedo expected from an increased concentration of cloud condensation nuclei (CCN). The mechanism is based on the thermodynamic tendency of the cloud to stabilize itself against changes in the absorption of solar radiation.
Boers, Reinout, Mitchell, Ross M.
openaire   +2 more sources

Evaluating forecasts of the evolution of the cloudy boundary layer using diurnal composites of radar and lidar observations [PDF]

open access: yes, 2009
Observations of boundary-layer cloud have been made using radar and lidar at Chilbolton, Hampshire, UK. These have been compared with output from 7 different global and regional models.
Andrew I. Barrett   +18 more
core   +1 more source

Mechanisms of marine low cloud sensitivity to idealized climate perturbations: A single‐LES exploration extending the CGILS cases

open access: yesJournal of Advances in Modeling Earth Systems, 2013
Climate change sensitivities of subtropical cloud‐topped marine boundary layers are analyzed using large‐eddy simulation (LES) of three CGILS cases of well‐mixed stratocumulus, cumulus under stratocumulus, and shallow cumulus cloud regimes, respectively.
Christopher S. Bretherton   +2 more
doaj   +1 more source

Assessing regional scale predictions of aerosols, marine stratocumulus, and their interactions during VOCALS-REx using WRF-Chem [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
This study assesses the ability of the recent chemistry version (v3.3) of the Weather Research and Forecasting (WRF-Chem) model to simulate boundary layer structure, aerosols, stratocumulus clouds, and energy fluxes over the Southeast Pacific Ocean ...
Q. Yang   +9 more
doaj   +1 more source

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