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Large-Eddy Simulations of Marine Boundary Layer Clouds Associated with Cold-Air Outbreaks during the ACTIVATE Campaign. Part II: Aerosol–Meteorology–Cloud Interaction

Li, Xiang-Yu and Wang, Hailong and Chen, Jingyi and Endoe, Satoshi and Kirschler, Simon and Voigt, Christiane and Crosbie, Ewan C. and Ziemba, Luke D. and Painemal, David and Cairns, Brian and Hair, Johnathan W. and Corral, Andrea F. and Robinson, Claire E. and Dadashazar, Hossein and Sorooshian, Armin and Chen, Gao and Ferrare, Richard Anthony and Kleb, Mary M. and Liu, Hongyu and Moore, Richard H. and Scarino, Amy Jo and Shook, Michael A. and Shingler, Taylor J. and Thornhill, Kenneth Lee and Tornow, Florian and Xiao, Heng and Zeng, Xubin (2023) Large-Eddy Simulations of Marine Boundary Layer Clouds Associated with Cold-Air Outbreaks during the ACTIVATE Campaign. Part II: Aerosol–Meteorology–Cloud Interaction. Journal of the Atmospheric Sciences, 80 (4), pp. 1025-1045. American Meteorological Society. doi: 10.1175/JAS-D-21-0324.1. ISSN 0022-4928.

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Official URL: https://dx.doi.org/10.1175/JAS-D-21-0324.1

Abstract

Aerosol effects on micro/macrophysical properties of marine stratocumulus clouds over the western North Atlantic Ocean (WNAO) are investigated using in situ measurements and large-eddy simulations (LES) for two cold-air outbreak (CAO) cases (28 February and 1 March 2020) during the Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment (ACTIVATE). The LES is able to reproduce the vertical profiles of liquid water content (LWC), effective radius reff and cloud droplet number concentration Nc from fast cloud droplet probe (FCDP) in situ measurements for both cases. Furthermore, we show that aerosols affect cloud properties (Nc, reff, and LWC) via the prescribed bulk hygroscopicity of aerosols (¯κ) and aerosol size distribution characteristics. Nc, reff, and liquid water path (LWP) are positively correlated to ¯κ and aerosol number concentration (Na) while cloud fractional cover (CFC) is insensitive to ¯κ and aerosol size distributions for the two cases. The realistic changes to aerosol size distribution (number concentration, width, and the geometrical diameter) with the same meteorology state allow us to investigate aerosol effects on cloud properties without meteorological feedback. We also use the LES results to evaluate cloud properties from two reanalysis products, ERA5 and MERRA-2. Compared to LES, the ERA5 is able to capture the time evolution of LWP and total cloud coverage within the study domain during both CAO cases while MERRA-2 underestimates them.

Item URL in elib:https://elib.dlr.de/195337/
Document Type:Article
Title:Large-Eddy Simulations of Marine Boundary Layer Clouds Associated with Cold-Air Outbreaks during the ACTIVATE Campaign. Part II: Aerosol–Meteorology–Cloud Interaction
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Li, Xiang-YuPacific Northwest National Laboratory, Richland, WA, USAhttps://orcid.org/0000-0002-5722-0018UNSPECIFIED
Wang, HailongPacific Northwest National Laboratory, Richland, WA, USAUNSPECIFIEDUNSPECIFIED
Chen, JingyiPacific Northwest National Laboratory, Richland, WashingtonUNSPECIFIEDUNSPECIFIED
Endoe, SatoshiBrookhaven National Laboratory, Upton, New YorkUNSPECIFIEDUNSPECIFIED
Kirschler, SimonDLR, IPAhttps://orcid.org/0000-0003-4232-8277136185766
Voigt, ChristianeDLR, IPAhttps://orcid.org/0000-0001-8925-7731UNSPECIFIED
Crosbie, Ewan C.NASA Langley Research Center, Hampton, USA /Science Systems and Applications, Inc., Hampton, USAUNSPECIFIEDUNSPECIFIED
Ziemba, Luke D.NASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Painemal, DavidNASA Langley Research Center, Hampton, USA /Science Systems and Applications, Inc., Hampton, USAUNSPECIFIEDUNSPECIFIED
Cairns, BrianNASA Goddard Institute for Space Studies, New York, New YorkUNSPECIFIEDUNSPECIFIED
Hair, Johnathan W.NASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Corral, Andrea F.Department of Chemical and Environmental Engineering, The University of Arizona, Tucson, Arizona, USAUNSPECIFIEDUNSPECIFIED
Robinson, Claire E.Science Systems and Applications Inc, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Dadashazar, HosseinDepartment of Chemical and Environmental Engineering, The University of Arizona, Tucson, Arizona, USAUNSPECIFIEDUNSPECIFIED
Sorooshian, ArminDepartment of Chemical and Environmental Engineering, The University of Arizona, Tucson, Arizona, USA/Department of Hydrology and Atmospheric Sciences, The University of Arizona, Tucson, Arizona, USAUNSPECIFIEDUNSPECIFIED
Chen, GaoNASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Ferrare, Richard AnthonyNASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Kleb, Mary M.NASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Liu, HongyuNational Institute of Aerospace, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Moore, Richard H.NASA Langley Research Center, Hampton, VA, USAhttps://orcid.org/0000-0003-2911-4469UNSPECIFIED
Scarino, Amy JoNASA Langley Research Center, Hampton, USA /Science Systems and Applications, Inc., Hampton, USAUNSPECIFIEDUNSPECIFIED
Shook, Michael A.NASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Shingler, Taylor J.NASA Langley Research Center, Hampton, VA, USAUNSPECIFIEDUNSPECIFIED
Thornhill, Kenneth LeeNASA Langley Research Center, Hampton, USA /Science Systems and Applications, Inc., Hampton, USAUNSPECIFIEDUNSPECIFIED
Tornow, FlorianNASA Goddard Institute for Space Studies, New York, New York, USA/Center for Climate Systems Research, Earth Institute, Columbia University, New York, USAUNSPECIFIEDUNSPECIFIED
Xiao, HengPacific Northwest National Laboratory, Richland, WashingtonUNSPECIFIEDUNSPECIFIED
Zeng, XubinDepartment of Hydrology and Atmospheric Sciences, The University of Arizona, Tucson, Arizona, USAUNSPECIFIEDUNSPECIFIED
Date:1 April 2023
Journal or Publication Title:Journal of the Atmospheric Sciences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:80
DOI:10.1175/JAS-D-21-0324.1
Page Range:pp. 1025-1045
Publisher:American Meteorological Society
ISSN:0022-4928
Status:Published
Keywords:Cloud forcing; Cloud microphysics; Cloud radiative effects
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics
Deposited By: Kirschler, Simon
Deposited On:02 Jun 2023 10:14
Last Modified:02 Jun 2023 10:14

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