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Distinct Impacts of Increased Aerosols on Cloud Droplet Number Concentration of Stratus/Stratocumulus and Cumulus

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1029/2019GL085081· OSTI ID:1574425
 [1];  [2];  [3];  [4];  [2]
  1. Nanjing Univ. of Information Science & Technology, Nanjing (China); Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, and Key Laboratory for Aerosol‐Cloud‐Precipitation of China Meteorological Administration, School of Atmospheric Physics; Univ. at Albany, Albany, NY (United States). Atmospheric Sciences Research Center
  2. Nanjing Univ. of Information Science & Technology, Nanjing (China); Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, and Key Laboratory for Aerosol‐Cloud‐Precipitation of China Meteorological Administration, School of Atmospheric Physics
  3. Univ. at Albany, Albany, NY (United States). Atmospheric Sciences Research Center
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Environmental and Climate Sciences Dept.
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In situ aircraft measurements obtained during the RACORO field campaign are analyzed to study the aerosol effects on different cloud regimes. Here, the results show that with increasing cloud condensation nuclei (CCN), cloud droplet number concentration (Nd) significantly increases in stratocumulus (Sc) while remains almost unchanged in cumulus (Cu). By using a new approach to strictly constrain the dynamics in Cu, we found that neither simultaneously changing cloud dynamics nor dilution of cloud water induced by entrainment-mixing can explain the observed insensitivity of Nd. The different degree of reduction in cloud supersaturation caused by increasing aerosols might be responsible for the observed different aerosol indirect effect between Sc and Cu.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012704
OSTI ID:
1574425
Report Number(s):
BNL--212322-2019-JAAM
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 22 Vol. 46; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (52)

Twomey effect observed from collocated microphysical and remote sensing measurements over shallow cumulus journal February 2014
Low-altitude summer/winter microphysics, dynamics, and CCN spectra of northeastern Caribbean small cumuli, and comparisons with stratus: microphys., dynam., CCN NE Carib. Cu journal May 2014
New understanding and quantification of the regime dependence of aerosol-cloud interaction for studying aerosol indirect effects: Aerosol-Cloud Interaction Regimes journal February 2016
Aerosol indirect effect dictated by liquid clouds: AEROSOL INDIRECT EFFECT journal December 2016
Negative Aerosol-Cloud r e Relationship From Aircraft Observations Over Hebei, China journal January 2018
Satellite observed aerosol-induced variability in warm cloud properties under different meteorological conditions over eastern China journal February 2014
8-Year ground-based observational analysis about the seasonal variation of the aerosol-cloud droplet effective radius relationship at SGP site journal September 2017
Toward understanding the process-level impacts of aerosols on microphysical properties of shallow cumulus cloud using aircraft observations journal June 2019
A possible correlation between satellite-derived cloud and aerosol microphysical parameters journal April 2001
Can chemical effects on cloud droplet number rival the first indirect effect?: CAN CHEMICAL EFFECTS ON CLOUD DROPLET NUMBER RIVAL INDIRECT EFFECT? journal September 2002
Effects of varying aerosol regimes on low-level Arctic stratus: AEROSOL EFFECTS ON ARCTIC STRATUS journal September 2004
Evaluation of the aerosol indirect effect in marine stratocumulus clouds: Droplet number, size, liquid water path, and radiative impact journal January 2005
An analysis of potential cloud artifacts in MODIS over ocean aerosol optical thickness products journal January 2005
The Marine Stratus/Stratocumulus Experiment (MASE): Aerosol-cloud relationships in marine stratocumulus: MASE-AEROSOL-CLOUD RELATIONSHIPS journal May 2007
Increase of cloud droplet size with aerosol optical depth: An observation and modeling study journal January 2008
The role of adiabaticity in the aerosol first indirect effect: THE ROLE OF ADIABATICITY journal March 2008
Satellite-based estimate of the direct and indirect aerosol climate forcing: SATELLITE-ESTIMATE OF AEROSOL FORCINGS journal March 2008
Aerosol-cloud relationships in continental shallow cumulus journal January 2008
MODIS observations of enhanced clear sky reflectance near clouds journal January 2009
Dominant role by vertical wind shear in regulating aerosol effects on deep convective clouds journal January 2009
Observed aerosol and liquid water path relationships in marine stratocumulus: OBSERVED AEROSOL AND LWP RELATIONSHIPS journal September 2010
Observations of the first aerosol indirect effect in shallow cumuli: FIRST AEROSOL INDIRECT EFFECT IN CUMULI journal February 2011
Aerosol effect on droplet spectral dispersion in warm continental cumuli: DISPERSION EFFECT IN CONTINENTAL CUMULI journal August 2012
Regime-based analysis of aerosol-cloud interactions: REGIME-BASED AEROSOL-CLOUD INTERACTIONS journal November 2012
Lateral entrainment rate in shallow cumuli: Dependence on dry air sources and probability density functions journal October 2012
Opposite Aerosol Index‐Cloud Droplet Effective Radius Correlations Over Major Industrial Regions and Their Adjacent Oceans journal June 2018
Microphysical properties of stratocumulus clouds during ACE-2 journal April 2000
Indirect warming effect from dispersion forcing journal October 2002
Ice nucleation by aerosols from anthropogenic pollution journal July 2019
The effect of smoke, dust, and pollution aerosol on shallow cloud development over the Atlantic Ocean journal August 2005
Anthropogenic contribution to cloud condensation nuclei and the first aerosol indirect climate effect journal May 2013
Impact of 3-D Clouds on Clear-Sky Reflectance and Aerosol Retrieval in a Biomass Burning Region of Brazil journal January 2006
The Water Content of Cumuliform Cloud journal November 1955
Aerosol Effect on Cloud Droplet Size Monitored from Satellite journal February 2002
Size Matters More Than Chemistry for Cloud-Nucleating Ability of Aerosol Particles journal June 2006
Aerosol-driven droplet concentrations dominate coverage and water of oceanic low-level clouds journal January 2019
The Influence of Pollution on the Shortwave Albedo of Clouds journal July 1977
Racoro Extended-Term Aircraft Observations of Boundary Layer Clouds journal June 2012
Retrieval of Cloud Properties for Partly Cloudy Imager Pixels journal January 2005
The Water Content of Cumuliform Cloud journal January 1955
Constraining the total aerosol indirect effect in the LMDZ and ECHAM4 GCMs using MODIS satellite data text January 2006
Constraining the total aerosol indirect effect in the LMDZ and ECHAM4 GCMs using MODIS satellite data text January 2005
The invigoration of deep convective clouds over the Atlantic: aerosol effect, meteorology or retrieval artifact? journal January 2010
Observations of the boundary layer, cloud, and aerosol variability in the southeast Pacific near-coastal marine stratocumulus during VOCALS-REx journal January 2011
A simple relationship between cloud drop number concentration and precursor aerosol concentration for the regions of Earth's large marine stratocumulus decks journal January 2012
Aerosol concentration and size distribution measured below, in, and above cloud from the DOE G-1 during VOCALS-REx journal January 2012
Estimates of aerosol radiative forcing from the MACC re-analysis journal January 2013
Impact of aerosols on ice crystal size journal January 2018
Exploring aerosol–cloud interaction using VOCALS-REx aircraft measurements journal January 2019
Is positive correlation between cloud droplet effective radius and aerosol optical depth over land due to retrieval artifacts or real physical processes? journal January 2019
Constraining the total aerosol indirect effect in the LMDZ and ECHAM4 GCMs using MODIS satellite data journal January 2006
Aerosol concentration and size distribution measured below, in, and above cloud from the DOE G-1 during VOCALS-REx journal January 2011

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54 ENVIRONMENTAL SCIENCES
aerosol‐cloud correlation
cloud condensation nucle
cloud droplet number concentration
cloud supersaturation
cumulus
stratocumulus