DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Aerosol-induced closure of marine cloud cells: enhanced effects in the presence of precipitation

Journal Article · · Atmospheric Chemistry and Physics (Online)

Abstract. The Weather Research Forecasting (WRF) version 4.3 model is configured within a Lagrangian framework to quantify the impact of aerosols on evolving cloud fields. Kilometer-scale simulations utilizing meteorological boundary conditions are based on 10 case study days offering diverse meteorology during the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA). Measurements from aircraft, the ground-based Atmosphere Radiation Measurement (ARM) site at Graciosa Island in the Azores, and A-Train and geostationary satellites are utilized for validation, demonstrating good agreement with the WRF-simulated cloud and aerosol properties. Higher aerosol concentration leads to suppressed drizzle and increased cloud water content in all case study days. These changes lead to larger radiative cooling rates at cloud top, enhanced vertical velocity variance, and increased vertical and horizontal wind speed near the base of the lower-tropospheric inversion. As a result, marine cloud cell area expands, narrowing the gap between shallow clouds and increasing cloud optical thickness, liquid water content, and the top-of-atmosphere outgoing shortwave flux. While similar aerosol effects are observed in lightly to non-raining clouds, they tend to be smaller by comparison. These simulations show a relationship between cloud cell area expansion and the radiative adjustments caused by liquid water path and cloud fraction changes. The adjustments are positive and scale as 74 % and 51 %, respectively, relative to the Twomey effect. While higher-resolution large-eddy simulations may provide improved representation of cloud-top mixing processes, these results emphasize the importance of addressing mesoscale cloud-state transitions in the quantification of aerosol radiative forcing that cannot be attained from traditional climate models.

Sponsoring Organization:
USDOE
OSTI ID:
2369754
Alternate ID(s):
OSTI ID: 2370314; OSTI ID: 2371540
Journal Information:
Atmospheric Chemistry and Physics (Online), Journal Name: Atmospheric Chemistry and Physics (Online) Journal Issue: 11 Vol. 24; ISSN 1680-7324
Publisher:
Copernicus GmbHCopyright Statement
Country of Publication:
Germany
Language:
English

References (90)

Interpolated Sounding Value-Added Product report February 2013
The MODIS Cloud Optical and Microphysical Products: Collection 6 Updates and Examples From Terra and Aqua journal January 2017
A Study of Aerosol Impacts on Clouds and Precipitation Development in a Large Winter Cyclone journal October 2014
Evaluation of the New Version of the Laser-Optical Disdrometer, OTT Parsivel 2 journal June 2014
Upstream Large-Scale Control of Subtropical Low-Cloud Climatology journal May 2023
The MERRA-2 Aerosol Reanalysis, 1980 Onward. Part I: System Description and Data Assimilation Evaluation journal September 2017
Environmental effects on aerosol–cloud interaction in non-precipitating marine boundary layer (MBL) clouds over the eastern North Atlantic journal January 2022
Assessing the mechanisms governing the daytime evolution of marine stratocumulus using large‐eddy simulation
  • McMichael, Lucas A.; Mechem, David B.; Wang, Shouping
  • Quarterly Journal of the Royal Meteorological Society, Vol. 145, Issue 719 https://doi.org/10.1002/qj.3469
journal January 2019
Tropospheric Aerosol Optical Thickness from the GOCART Model and Comparisons with Satellite and Sun Photometer Measurements journal February 2002
Noah land surface model modifications to improve snowpack prediction in the Colorado Rocky Mountains journal January 2010
Cloud adjustments from large-scale smoke–circulation interactions strongly modulate the southeastern Atlantic stratocumulus-to-cumulus transition journal September 2022
Development of a turbulence closure model for geophysical fluid problems journal January 1982
Large-eddy simulation of the transient and near-equilibrium behavior of precipitating shallow convection: LES OF PRECIPITATING SHALLOW CONVECTION journal December 2015
Kilometer‐Scale Simulations of Trade‐Wind Cumulus Capture Processes of Mesoscale Organization journal March 2023
Stratocumulus to Cumulus Transition by Drizzle: STRATOCUMULUS TO CUMULUS BY DRIZZLE journal October 2017
Can aerosol decrease cloud lifetime? journal January 2009
Evaluation of aerosol–cloud interactions in E3SM using a Lagrangian framework journal March 2023
Laser Disdrometer Quantities (LDQUANTS) and Video Disdrometer Quantities (VDISQUANTS) Value-Added Products Report report April 2020
Estimating the Decoupling Degree of Subtropical Marine Stratocumulus Decks From Satellite journal November 2018
Development of an Efficient Regional Four-Dimensional Variational Data Assimilation System for WRF journal December 2014
Cloud properties derived from surface MFRSR measurements and comparison with GOES results at the ARM SGP Site journal June 1996
Cloud Condensation Nuclei Particle Counter Instrument Handbook - Airborne Version report September 2019
Development and Applications of ARM Millimeter-Wavelength Cloud Radars journal April 2016
WRF-Solar: Description and Clear-Sky Assessment of an Augmented NWP Model for Solar Power Prediction journal July 2016
Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models journal January 2008
Hallett‐Mossop Rime Splintering Dims Cumulus Clouds Over the Southern Ocean: New Insight From Nudged Global Storm‐Resolving Simulations journal April 2022
The Impact of Resolving Subkilometer Processes on Aerosol‐Cloud Interactions of Low‐Level Clouds in Global Model Simulations journal November 2020
Top-of-the-atmosphere reflected shortwave radiative fluxes from GOES-R journal September 2022
Realism of Lagrangian Large Eddy Simulations Driven by Reanalysis Meteorology: Tracking a Pocket of Open Cells Under a Biomass Burning Aerosol Layer journal November 2021
Development of an Improved Turbulence Closure Model for the Atmospheric Boundary Layer journal January 2009
Impacts of long-range transport of aerosols on marine-boundary-layer clouds in the eastern North Atlantic journal January 2020
Decomposing aerosol cloud radiative effects into cloud cover, liquid water path and Twomey components in marine stratocumulus journal March 2014
Microphysical and macrophysical responses of marine stratocumulus polluted by underlying ships: 2. Impacts of haze on precipitating clouds: IMPACTS OF HAZE ON PRECIPITATING CLOUDS journal June 2012
Satellite-based estimate of global aerosol–cloud radiative forcing by marine warm clouds journal August 2014
Vertical photon transport in cloud remote sensing problems journal September 2000
Observed Relationships Between Cloud Droplet Effective Radius and Biogenic Gas Concentrations in Summertime Marine Stratocumulus Over the Eastern North Atlantic journal February 2022
Impact of Meteorological Factors on the Mesoscale Morphology of Cloud Streets during a Cold-Air Outbreak over the Western North Atlantic journal November 2022
Switching cloud cover and dynamical regimes from open to closed Benard cells in response to the suppression of precipitation by aerosols journal January 2006
The Role of Precipitation in Controlling the Transition from Stratocumulus to Cumulus Clouds in a Northern Hemisphere Cold-Air Outbreak journal July 2017
Strong constraints on aerosol–cloud interactions from volcanic eruptions journal June 2017
Outlook for Research on Subtropical Marine Stratification Clouds journal December 1984
Remote Sensing of Droplet Number Concentration in Warm Clouds: A Review of the Current State of Knowledge and Perspectives journal June 2018
A New Double-Moment Microphysics Parameterization for Application in Cloud and Climate Models. Part I: Description journal June 2005
Stratocumulus Clouds journal August 2012
Cloud Morphology Evolution in Arctic Cold‐Air Outbreak: Two Cases During COMBLE Period journal May 2022
Effect of precipitation on the albedo susceptibility of clouds in the marine boundary layer journal November 1994
The ARM Millimeter Wave Cloud Radars (MMCRs) and the Active Remote Sensing of Clouds (ARSCL) Value Added Product (VAP) report March 2001
Satellite-based estimate of the direct and indirect aerosol climate forcing: SATELLITE-ESTIMATE OF AEROSOL FORCINGS journal March 2008
A New Vertical Diffusion Package with an Explicit Treatment of Entrainment Processes journal September 2006
Radiation Profiles in Extended Water Clouds. II: Parameterization Schemes journal November 1978
Drizzle and Turbulence Below Closed Cellular Marine Stratocumulus Clouds journal June 2019
Surprising similarities in model and observational aerosol radiative forcing estimates journal January 2020
Evaluation of PBL Parameterizations in WRF at Subkilometer Grid Spacings: Turbulence Statistics in the Dry Convective Boundary Layer journal March 2016
Aerosol-Cloud-Precipitation Interactions in a Closed-cell and Non-homogenous MBL Stratocumulus Cloud journal September 2022
A fast, flexible, approximate technique for computing radiative transfer in inhomogeneous cloud fields: FAST, FLEXIBLE, APPROXIMATE RADIATIVE TRANSFER journal July 2003
Evaluation of Three Planetary Boundary Layer Schemes in the WRF Model journal September 2010
Contrasting characteristics of open- and closed-cellular stratocumulus cloud in the eastern North Atlantic journal January 2021
Convectively Induced Secondary Circulations in Fine-Grid Mesoscale Numerical Weather Prediction Models journal September 2014
Substantial Cloud Brightening From Shipping in Subtropical Low Clouds journal March 2020
Drizzle in Stratiform Boundary Layer Clouds. Part I: Vertical and Horizontal Structure journal September 2005
Explicitly-coupled cloud physics and radiation parameterizations and subsequent evaluation in WRF high-resolution convective forecasts journal February 2016
Cloud droplet sedimentation, entrainment efficiency, and subtropical stratocumulus albedo journal January 2007
Reducing the aerosol forcing uncertainty using observational constraints on warm rain processes journal May 2020
Aerosols, Cloud Microphysics, and Fractional Cloudiness journal September 1989
Production of secondary ice particles during the riming process journal May 1974
Simulation of Mesoscale Cellular Convection in Marine Stratocumulus. Part I: Drizzling Conditions journal January 2018
Anthropogenic Air Pollution Delays Marine Stratocumulus Breakup to Open Cells journal December 2019
Relationship between radar reflectivity and the time scale of warm rain formation in a global cloud-resolving model journal June 2009
Process‐oriented evaluation of the oversea AROME configuration: Focus on the representation of cloud organisation
  • Beucher, Florent; Couvreux, Fleur; Bouniol, Dominique
  • Quarterly Journal of the Royal Meteorological Society, Vol. 148, Issue 749 https://doi.org/10.1002/qj.4354
journal October 2022
CLOUDS AND MORE: ARM Climate Modeling Best Estimate Data: A New Data Product for Climate Studies journal January 2010
Improving our fundamental understanding of the role of aerosol−cloud interactions in the climate system journal May 2016
Evaluating the Lagrangian Evolution of Subtropical Low Clouds in GCMs Using Observations: Mean Evolution, Time Scales, and Responses to Predictors journal February 2021
Spatial Variability of Liquid Water Path in Marine Low Cloud: The Importance of Mesoscale Cellular Convection journal May 2006
The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2) journal July 2017
Bounding global aerosol radiative forcing of climate change journal November 2019
The impact of humidity above stratiform clouds on indirect aerosol climate forcing journal December 2004
Cloud tuning in a coupled climate model: Impact on 20th century warming: CLOUD TUNING AND 20TH CENTURY WARMING journal March 2013
Time Scales of Clouds and Cloud-Controlling Variables in Subtropical Stratocumulus from a Lagrangian Perspective journal August 2016
CERES Synoptic Product: Methodology and Validation of Surface Radiant Flux journal June 2015
Evaluation of liquid cloud albedo susceptibility in E3SM using coupled eastern North Atlantic surface and satellite retrievals journal October 2023
Improved Representation of Boundary Layer Clouds over the Southeast Pacific in ARW-WRF Using a Modified Tiedtke Cumulus Parameterization Scheme * journal November 2011
Cloud Ice Processes Enhance Spatial Scales of Organization in Arctic Stratocumulus journal December 2019
Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) journal February 2022
Comparison of WRF Model-Simulated and MODIS-Derived Cloud Data journal June 2008
Evaluation of WRF SCM Simulations of Stratocumulus-Topped Marine and Coastal Boundary Layers and Improvements to Turbulence and Entrainment Parameterizations: MARINE AND COASTAL STBL MODELING IN WRF journal November 2017
Modeling Mesoscale Cellular Structures and Drizzle in Marine Stratocumulus. Part II: The Microphysics and Dynamics of the Boundary Region between Open and Closed Cells journal November 2009
A Technique for Autocalibration of Cloud Lidar journal May 2004
Volcano and Ship Tracks Indicate Excessive Aerosol-Induced Cloud Water Increases in a Climate Model: CLOUD WATER RESPONSE TO AEROSOLS journal December 2017
NOAA’s HYSPLIT Atmospheric Transport and Dispersion Modeling System journal December 2015
Aerosols enhance cloud lifetime and brightness along the stratus-to-cumulus transition journal July 2020