A41D:
Cloud-Aerosol-Precipitation-Climate Interactions over the Southeastern Atlantic II Posters

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Session ID#: 13121

Session Description:
The southeastern Atlantic (SEA) low cloud deck reflects solar radiation and cools the upper ocean, which helps set the Tropical atmospheric circulation. Low clouds and their climate feedbacks are challenging to simulate. The SEA low cloud deck is unique in being overlain by optically thick biomass burning aerosol layers transported from Southern Africa from July-October. Low clouds are susceptible to this aerosol in ways that include radiative impacts on sea-surface temperature, impacts of aerosol absorption on atmospheric heating and relative humidity, and microphysical interactions. The combined impacts on future climate are poorly understood.


Studies are solicited that present new research focused on observation and modeling of the interactions between clouds, aerosol, precipitation and climate over the SEA and other extensive low cloud regions. These include new remote sensing methods to improve our ability to observe aerosols, clouds and mixed scenes, analysis of field experiment data, and process and regional modeling.

Primary Convener:  Robert Wood, University of Washington, Department of Atmospheric Sciences, Seattle, United States
Conveners:  James M. Haywood, Met Office, Exeter, United Kingdom, Jens Redemann, University of Oklahoma, School of Meteorology, Norman, United States and Paquita Zuidema, University of Miami, Rosenstiel School, Department of Atmospheric Sciences, Miami, United States
Chairs:  Jens Redemann, University of Oklahoma, School of Meteorology, Norman, United States and Robert Wood, University of Washington, Department of Atmospheric Sciences, Seattle, United States
OSPA Liaison:  Robert Wood, University of Washington, Department of Atmospheric Sciences, Seattle, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3311 Clouds and aerosols [ATMOSPHERIC PROCESSES]
3360 Remote sensing [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Response of Marine Boundary Layer Cloud Properties to Aerosol Perturbations Associated with Meteorological Conditions from the 19-month AMF-Azores Campaign (121350)
Jianjun Liu, Zhanqing Li and Cribb Maureen, University of Maryland College Park, College Park, MD, United States
Intercomparison of CALIOP Cloud and Aerosol Profiles with in situ Marine Stratocumulus Observations during ORACLES (131407)
Ashley Heikkila, University of Hawaii at Manoa, Honolulu, HI, United States and Jennifer D. Small Griswold, University of Hawaii at Manoa, Atmospheric Sciences, Honolulu, HI, United States
Marine Stratocumulus Properties from the FPDR – PDI as a Function of Aerosol during ORACLES (131411)
Jennifer D. Small Griswold, University of Hawaii at Manoa, Atmospheric Sciences, Honolulu, HI, United States and Ashley Heikkila, University of Hawaii at Manoa, Honolulu, HI, United States
Daytime variations of absorbing aerosols above clouds in the southeast Atlantic (132703)
Ian Yi-Yin Chang and Sundar A Christopher, University of Alabama in Huntsville, Huntsville, AL, United States
Spatio‐temporal variability in cloud microphysical properties over the South East Atlantic (133187)
Siddhant Gupta1, Greg M McFarquhar2, Michael Poellot3, Joseph Robert O'Brien3 and David J Delene4, (1)University of Illinois at Urbana Champaign, Atmospheric Sciences, Urbana, United States, (2)University of Oklahoma, Cooperative Institute for Mesoscale Meteorological Studies and School of Meteorology, Norman, OK, United States, (3)University of North Dakota, Grand Forks, ND, United States, (4)University of North Dakota, Atmospheric Sciences, Grand Forks, ND, United States
Fast Response Vertical Wind Measurements Made on the NASA P-3B During the 2016 ORACLES Field Campaign (141978)
Kenneth Lee Thornhill II, NASA Langley Research Center, Hampton, United States, John D W Barrick, Science Systems and Applications, Inc. Hampton, Hampton, VA, United States and ORACLES Science Team
Entrainment and mixing of biomass burning aerosol into the Namibian stratocumulus cloud deck (145498)
Michael S Diamond1, Robert Wood1 and Samuel E LeBlanc2, (1)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States, (2)NASA Ames Research Center, Moffett Field, United States
Aerosol properties above clouds over the South East Atlantic Ocean during the fire season: comparison between observations from POLDER/PARASOL and AeroCom models (147865)
Fanny Peers1, Nicolas Bellouin2, Fabien Waquet3, Fabrice Ducos4, Philippe Goloub5, James Mollard6, Gunnar Myhre7, Ragnhild B Skeie7, Toshihiko Takemura8, Didier D Tanre9, Francois Thieuleux10 and Kai Zhang11, (1)University of Exeter, Exeter, United Kingdom, (2)University of Reading, Reading, United Kingdom, (3)Laboratoire d'Optique Atmosphérique, Univ. Lille, CNRS, UMR 8518, Lille, France, (4)Laboratoire d'Optique Atmosphérique, CNRS/University of Lille, Lille, France, (5)Laboratoire d'Optique Atmosphérique (Lille), Univ. Lille, CNRS, UMR 8518, Villeneuve d'Ascq, France, (6)University of Reading, Reading, RG6, United Kingdom, (7)CICERO Center for International Climate Research, Oslo, Norway, (8)Kyushu University, Research Institute for Applied Mechanics, Fukuoka, Japan, (9)Laboratoire d'Optique Atmosphérique (Lille), Villeneuve, France, (10)Laboratoire d'Optique Atmosphérique (Lille), Villeneuve d'Ascq, France, (11)Pacific Northwest National Laboratory, Richland, WA, United States
Using ARM observations to identify deficiencies in the NCAR Community Atmosphere Model (CAM) simulations of marine boundary layer clouds (161922)
Xue Zheng1, Stephen A Klein1, Hsi-Yen Ma1, Vincent E Larson2, Andrew Gettelman3 and Peter Bogenschutz3, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)University of Wisconsin-Milwaukee, Milwaukee, WI, United States, (3)National Center for Atmospheric Research, Boulder, CO, United States
An Intercomparison of Research Scanning Polarimeter Cloud Droplet Number Concentrations with Aerosol Properties over the Atlantic Ocean (169665)
Dr. Kenneth Sinclair, PhD1, Bastiaan van Diedenhoven2, Brian Cairns3, Mikhail D Alexandrov4, Luke D Ziemba5, Richard Moore5, Ewan Crosbie5 and Chris A Hostetler5, (1)Columbia University of New York, Earth and Environmental Engineering, Palisades, NY, United States, (2)Columbia University of New York, Palisades, NY, United States, (3)NASA Goddard Institute for Space Studies, New York, NY, United States, (4)Columbia University, New York, United States, (5)NASA Langley Research Center, Hampton, VA, United States
Cloud Condensation Nuclei Measurements During the First Year of the ORACLES Study (177684)
Mary Kacarab, Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States, Steven G Howell, University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States, Robert Wood, University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States, Jens Redemann, University of Oklahoma, School of Meteorology, Norman, United States, Athanasios Nenes, Ecole Polytechnique Federale de Lausanne, School of Architecture, Civil and Environmental Engineering (ENAC), Laboratory of Atmospheric Processes and their Impacts (LAPI), Lausanne, Switzerland and ORACLES Science Team
Separating Aerosol and Cloud Radiative Effects: Sampling Techniques and Preliminary Results from the 2016 ORACLES Field Campaign (178736)
Sabrina Cochrane1, Sebastian Schmidt2, Hong Chen3, Peter Pilewskie2, Jens Redemann4, Samuel E LeBlanc5, Graham Feingold6, Steven E Platnick7, Kerry Meyer7,8, Hironobu Iwabuchi9, Richard Anthony Ferrare10, Johnathan W Hair10, Sharon P Burton10 and Chris A Hostetler10, (1)University of Colorado, Boulder, CO, United States, (2)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (3)University of Colorado at Boulder, Boulder, United States, (4)University of Oklahoma, School of Meteorology, Norman, United States, (5)NASA Ames Research Center, Moffett Field, United States, (6)NOAA Boulder, Boulder, CO, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)Universities Space Research Association Greenbelt, Greenbelt, MD, United States, (9)Tohoku University, Department of Geophysics, Graduate School of Science, Sendai, Japan, (10)NASA Langley Research Center, Hampton, VA, United States
The transport of southern Africa smoke aerosols and transient dynamics of the subtropical circulation (199868)
Eric M Wilcox and Farnaz Hosseinpour, Desert Research Institute, Division of Atmospheric Sciences, Reno, United States

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