TWOMEY EFFECT IN SUBTROPICAL STRATOCUMULUS CLOUDS FROM UV DEPOLARIZATION LIDAR
Marine stratocumulus clouds are important climate regulators, reflecting sunlight over a dark ocean background. A UV-depolarization lidar on Ascension, a small remote island in the south Atlantic, measured cloud droplet sizes and number concentration ...
de Graaf Martin +2 more
doaj +1 more source
Emergent constraints on future projections of the western North Pacific Subtropical High
Model biases and internal variability are a cause for uncertainties in climate projections. Here, the authors show that 45% of projected uncertainty in the western Pacific Subtropical High can be reduced by correcting sea surface temperature biases in ...
Xiaolong Chen +4 more
doaj +1 more source
Key points 1. Simulations of atmospheric cloud-radiative effect (ACRE) in 54 CMIP6 models are evaluated against the satellite-based observational data. 2. The performance of ACRE simulations is sensitive to the model horizontal resolution used. 3.
Qiao-Jun Lin, Jia-Yuh Yu
doaj +1 more source
Low Cloud Dispersion Effects by Anthropogenic Aerosols in Polluted Air
Abstract Aerosol–cloud interactions (ACI) are a major source of uncertainty in anthropogenic climate forcing. Anthropogenic aerosols modulate the cloud albedo by impacting the relative dispersion (ε) of cloud droplet size distributions (CDSDs), known as the dispersion effect.
Xiaomi Teng +13 more
wiley +1 more source
Evaluation of an entraining droplet activation parameterization using in situ cloud data [PDF]
This study investigates the ability of a droplet activation parameterization (which considers the effects of entrainment and mixing) to reproduce observed cloud droplet number concentration (CDNC) in ambient clouds.
A. Nenes +43 more
core +2 more sources
Understanding changes in cloud simulations from E3SM version 1 to version 2 [PDF]
This study documents clouds simulated by the Energy Exascale Earth System Model (E3SM) version 2 (E3SMv2) and attempts to understand what causes the model behavior change in clouds relative to E3SMv1. This is done by analyzing the last 30-year (1985–2014)
Y. Zhang +10 more
doaj +1 more source
Kernel‐Based Estimation of Stratospheric Aerosol Radiative Effects From Volcanic and Wildfire Events
Abstract To facilitate the quantification of the stratospheric aerosol direct radiative effect (ARE), this study develops a suite of aerosol kernels based on Modern‐Era Retrospective Analysis for Research and Applications, Version 2 reanalysis data. The kernels comprise a five‐dimensional data set that includes latitude, longitude, time, wavelength ...
Qiurun Yu, Yi Huang
wiley +1 more source
Relationship between drizzle rate, liquid water path and droplet concentration at the scale of a stratocumulus cloud system [PDF]
The recent ACE-2, EPIC and DYCOMS-II field experiments showed that the drizzle precipitation rate of marine stratocumulus scales with the cloud geometrical thickness or liquid water path, and the droplet concentration, when averaged over a domain typical
O. Geoffroy, J.-L. Brenguier, I. Sandu
doaj
Impact on the stratocumulus-to-cumulus transition of the interaction of cloud microphysics and macrophysics with large-scale circulation [PDF]
This study examines the impact of the interaction of cloud microphysics and macrophysics with the large-scale circulation on the stratocumulus-to-cumulus transition (SCT) using a large-eddy simulation (LES) combined with weak-temperature-gradient (WTG ...
J.-Y. Chun +4 more
doaj +1 more source
Biases in Southern Ocean Precipitation From Shallow Convection: The Role of Cloud Morphology
Abstract Precipitation from marine boundary layer clouds is a critical yet highly uncertain feature of post‐frontal conditions over the Southern Ocean (SO), where shallow convection dominates. This study evaluates whether satellite retrievals (GPM‐IMERG and CloudSat) and reanalysis (ERA5) represent the contrasting precipitation between open and closed ...
T. Alinejadtabrizi +6 more
wiley +1 more source

