A020
Aerosol, Cloud, Precipitation, and Radiation Studies over the Southern Ocean

Session ID#: 75967

Session Description:
Motivated by a lack of in situ observational data, large biases in the simulation of radiation budgets over the Southern Ocean in climate models, and knowledge that natural pre-industrial aerosols are a major source of uncertainty in understanding aerosol radiative forcing, several recent observational campaigns have been conducted over the Southern Ocean. The Southern Ocean is a natural laboratory for examining cloud-aerosol-precipitation-radiation interactions for liquid and ice clouds, and the role of primary and secondary marine biogenic aerosols and sea-salt in these interactions. This session solicits contributions that describe recent ship-, island- or airborne field campaigns on Southern Ocean clouds, aerosols, precipitation, and radiation, that use data from such campaigns or satellite remote sensing to advance understanding of these quantities and interactions between them, or that use models with a variety of spatial and temporal scales.
Index Terms:

0320 Cloud physics and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0321 Cloud/radiation interaction [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3311 Clouds and aerosols [ATMOSPHERIC PROCESSES]
3349 Polar meteorology [ATMOSPHERIC PROCESSES]

Primary Convener:  Greg M McFarquhar, University of Oklahoma, Cooperative Institute for Mesoscale Meteorological Studies and School of Meteorology, Norman, OK, United States
Conveners:  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, Roger Marchand, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States and Tom Lachlan-Cope, NERC British Antarctic Survey, Cambridge, United Kingdom
Primary Liaison:  Greg M McFarquhar, Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States
 
Evaluation of the Cloud Characteristics in NCAR CAM model over the Southern Ocean and the Arctic Region (485965)
Ching An Yang, San Jose State University, San Jose, CA, United States, Minghui Diao, San Jose State University, Meteorology and Climate Science, San Jose, CA, United States and Andrew Gettelman, NCAR, Boulder, CO, United States
 
Controls of the relationships between satellite retrieved cloud drop number concentrations and surface CCN at the high latitude Southern Oceans (496218)
Avichay Efraim and Daniel Rosenfeld, Hebrew University of Jerusalem, Jerusalem, Israel
 
Atmospheric drivers of boundary layer cloud properties in the southern oceans in observations and a climate model (499225)
Catherine M Naud, Columbia University of New York, Palisades, NY, United States, James F Booth, CUNY-City College, New York, United States, Katia Lamer, Pennsylvania State University, University Park, PA, United States, Roger Marchand, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, Alain Protat, Bureau of Meteorology, Melbourne, Australia, Greg M McFarquhar, Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States and Andrew Gettelman, NCAR, Boulder, CO, United States
 
Cloud fractions estimated from shipboard observations between East Asia and Antarctica and the comparison with satellite observation. (500917)
Makoto Kuji1, Naho Nakatsuji Ms1, Sara Hirose1 and Masahiro Hori2, (1)Nara Women's University, Nara, Japan, (2)JAXA Japan Aerospace Exploration Agency, Tsukuba, Japan
 
Clouds and Convection in Extra-Tropical Cyclones over the Southern Ocean in GFDL AM4 (506589)
Leo Donner1, Catherine M Naud2, James F Booth3, Charles Seman1, Ming Zhao1, Huan Guo1 and Yi Ming1, (1)NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (2)Columbia University in the City of New York, Palisades, NY, United States, (3)CUNY-City College, New York, United States
 
Phase Characterization of Southern Ocean Clouds using HIAPER Cloud Radar (HCR) and High Spectral Resolution Lidar (HSRL) Observations: results from SOCRATES (507789)
Robert Rauber1, Troy J Zaremba2, Greg M McFarquhar3, Sonia Lasher-Trapp4, Joe Finlon1 and Daniel Miles Stechman5, (1)University of Illinois at Urbana Champaign, Urbana, IL, United States, (2)University of Illinois at Urbana Champaign, Atmospheric Sciences, Urbana, IL, United States, (3)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (4)University of Illinois at Urbana-Champaign, Atmospheric Sciences, Urbana, IL, United States, (5)University of Illinois, Urbana, IL, United States
 
Clouds over the Southern Ocean in the CMIP6 AMIP Model Outputs. (512758)
Tristan D O'Hanlon and Tra Dinh, University of Auckland, Auckland, New Zealand
 
Ship-Based Black-Carbon Observations Over the South Atlantic and Southern Ocean (512786)
Stephen P Broccardo, NASA Ames Research Center, Moffett Field, CA, United States, Stuart Piketh, North-West University, Unit for Environmental Science and Management, Mahikeng, South Africa and Gregor T Feig, South African Weather Service, now at South African Environmental Observation Network, Pretoria, South Africa
 
Improved Accuracy in Shipborne Broadband Irradiance Measurements during MARCUS using New Tilt-Corrected SHIPRAD Systems (520055)
Laura Riihimaki1, R. Michael Reynolds2, Charles N. Long1, Jim Wendell3, Emiel Hall1 and Erol Cromwell4, (1)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (2)RMR Co., Seattle, WA, United States, (3)Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, United States, (4)Pacific Northwest National Laboratory, Richland, WA, United States
 
Preliminary Results of Simulation of SOCRATES period with Global System for Atmospheric Modeling (524532)
Marat Khairoutdinov, Stony Brook University, School of Marine & Atmospheric Sciences, Stony Brook, NY, United States and Christopher S. Bretherton, University of Washington, Seattle, WA, United States
 
Are Southern Ocean Low-Cloud Droplet Numbers Buffered by Recently Formed Particles Associated with Cyclonic Uplift? (526649)
Isabel Louise McCoy1, Christopher S. Bretherton1, Robert Wood1, Cynthia H. Twohy2, Andrew Gettelman3 and Charles Bardeen3, (1)University of Washington, Seattle, WA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)National Center for Atmospheric Research, Boulder, CO, United States
 
A missing physics in climate models for the simulation of Southern Ocean: longwave radiative coupling between surface and atmosphere (554062)
Yi-Hsuan Chen1, Xianglei Huang2, Chia-Pang Kuo3, Xiuhong Chen2 and Ping Yang4, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)Univ of Michigan, Ann Arbor, MI, United States, (3)Texas A & M University, College Station, TX, United States, (4)Texas A&M Univ, College Station, TX, United States
 
Retrievals of Sea Surface Emissivity and Skin Temperature from M-AERI Observations from the MARCUS Field Campaign (556881)
P Jonathan Gero, University of Wisconsin Madison, Space Science and Engineering Center, Madison, WI, United States, Robert O Knuteson, University of Wisconsin, Madison, WI, United States, Nicholas R Nalli, IMSG, Inc., at National Oceanic and Atmospheric Administration (NOAA), College Park, MD, United States and James Jung, Joint Center for Satellite Data Assimilation, Camp Springs, MD, United States
 
Microphysical characteristic of clouds over Southern Ocean observed during SOCRATES field campaign (559459)
Wei Wu1, Greg M McFarquhar1, Emma Jarvinen2, Martin Schnaiter3, Fritz Waitz4 and Jeffrey L Stith5, (1)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (2)National Center for Atmospheric Research, Boulder, United States, (3)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Aerosol Research (IMK-AAF), Karlsruhe, Germany, (4)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Karlsruhe, Germany, (5)NCAR Rsch Aviation Facility, Broomfield, CO, United States
 
Wintertime In-situ Cloud Microphysical Properties of Mixed-phase Clouds over the Southern Ocean (563202)
Yi Huang1, Steven Thomas Siems2 and Michael Manton2, (1)The University of Melbourne, School of Earth Sciences, Melbourne, VIC, Australia, (2)Monash University, Melbourne, VIC, Australia
 
Mixed-phase clouds over the Southern Ocean observed poleward of 66S by ship-based radar and lidar (564127)
Simon Alexander1, Greg M McFarquhar2, Alain Protat3, Roger Marchand4, Gerald G Mace5, Etienne Vignon6 and Andrew R Klekociuk1, (1)Australian Antarctic Division, Kingston, TAS, Australia, (2)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (3)Bureau of Meteorology, Melbourne, Australia, (4)University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, (5)Univ Utah, Salt Lake City, UT, United States, (6)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France
 
First results of the AIRBOX Antarctic campaign on the RSV Aurora Australis during 2018/2019 resupply season (566986)
Robyn Schofield1, Ruhi Humphries2, Melita D Keywood2, Sonya Fiddes3, Robert G Ryan4, Imogen Wadlow1, Jared Lewis5, Matthew Woodhouse6, Christopher Roulston7, Neil Page8, Jenny A Fisher8, Maximilien Desservettaz9, Clare Paton-Walsh9, David W T Griffith9, Alan Griffiths10, Alastair G Williams11, Anthony Morrison12, Simon Alexander13, William J French13, Branka Miljevic14, Joel Alroe14, Zoran Ristovski14, Dagmaer Kubistin15, Jason Monty16 and Alessandro Toffoli17, (1)University of Melbourne, School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, Parkville, VIC, Australia, (2)CSIRO Marine and Atmospheric Research, Aspendale, Australia, (3)University of Melbourne, School of Earth Sciences and ARC Centre of Excellence for Climate System Science, Parkville, Australia, (4)University of Melbourne, School of Earth Sciences, Parkville, Australia, (5)University of Melbourne, School of Earth Sciences, Parkville, VIC, Australia, (6)CSIRO Oceans and Atmospheres, Aspendale, Australia, (7)CSIRO Oceans and Atmospheres, Aspendale, VIC, Australia, (8)University of Wollongong, Centre for Atmospheric Chemistry, School of Earth, Atmospheric and Life Sciences, Wollongong, NSW, Australia, (9)University of Wollongong, Centre for Atmospheric Chemistry, School of Chemistry, Wollongong, NSW, Australia, (10)Australian Nuclear Science and Technology Organization, Kirrawee, Australia, (11)Australian Nuclear Science and Technology Organization, Kirrawee, NSW, Australia, (12)Macquarie University, Sydney, Australia, (13)Australian Antarctic Division, Kingston, TAS, Australia, (14)Queensland University of Technology, School of Chemistry, Physics and Mechanical Engineering, Brisbane, QLD, Australia, (15)Deutscher Wetterdienst Meteorological Observatory Hohenpeissenberg, Hohenpeissenberg, Germany, (16)University of Melbourne, Mechanical Engineering, Parkville, VIC, Australia, (17)University of Melbourne, Department of Infrastructure Engineering, Parkville, Australia
 
Observations of the thermodynamic structure of the Marine Atmospheric Boundary Layer over the Southern Ocean (568381)
Steven Thomas Siems1, Son Cong Hoang Truong2, Yi Huang3, Francisco Lang4 and Michael Manton1, (1)Monash University, Melbourne, VIC, Australia, (2)Monash University, School of Earth, Atmosphere and Environment, Melbourne, VIC, Australia, (3)The University of Melbourne, School of Earth Sciences, Melbourne, VIC, Australia, (4)Monash University, School of Earth, Atmosphere and Environment, Melbourne, Australia
 
Simulating Southern Ocean Mixed Phased Aerosol-Cloud interactions and Ice Microphysics with the NCAR Community Atmosphere Model (588410)
Christina S McCluskey1, Andrew Gettelman2, Charles Bardeen1, Emma Jarvinen3, Paul J DeMott4, Thomas Christopher James Hill5, Cynthia H Twohy6, Bryan Jeremy Rainwater7, Darin W Toohey8, Scott M Ellis9, Matthew M Hayman10, Jothiram Vivekanandan2, Jorgen B Jensen11, Jeffrey L Stith12, Wei WU13 and Greg M McFarquhar14, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)NCAR, Boulder, CO, United States, (3)National Center for Atmospheric Research, Boulder, United States, (4)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (5)Colorado State University, Fort Collins, CO, United States, (6)NorthWest Research Associates Boulder, Boulder, CO, United States, (7)University of Colorado at Boulder, Boulder, CO, United States, (8)Univ Colorado, Boulder, CO, United States, (9)University Corporation for Atmospheric Research, Boulder, CO, United States, (10)NCAR, Research Aviation Facility, Boulder, CO, United States, (11)NCAR, Broomfield, CO, United States, (12)NCAR Rsch Aviation Facility, Broomfield, CO, United States, (13)Cooperative Institute for Mesoscale Meteorological Studies, Norman, United States, (14)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States
 
Stratocumulus cloud-top inhomogeneous entrainment parcel model parameterization (590269)
Gregory C Roberts1,2, Kevin J Sanchez1, Minghui Diao3 and Lynn M Russell4, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)CNRM-GAME, Toulouse Cedex 01, France, (3)San Jose State University, Meteorology and Climate Science, San Jose, CA, United States, (4)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
 
Distributions of Condensation Nuclei, Cloud Condensation Nuclei and Cloud Properties over the Southern Ocean: First Results from MARCUS/MICRE (591099)
Qing Niu, University of Oklahoma Norman Campus, Norman, OK, United States, Saisai Ding, Peking University, Beijing, China, Greg M McFarquhar, Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, Roger Marchand, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, Adam K. Theisen, Argonne National Laboratory, Lemont, IL, United States and Ruhi Humphries, CSIRO Marine and Atmospheric Research, Aspendale, Australia
 
Supercooled Liquid Clouds during SOCRATES: Analysis of Observations and Forecasts (595690)
Julie Anne Haggerty1, Greg M McFarquhar2, Cory Wolff3, Wei WU4, William L Smith Jr5, Jorgen B Jensen6, Emma Jarvinen7, Cameron Lethlean8 and Rodney Potts8, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (3)National Center for Atmospheric Research, Earth Observing Laboratory, Boulder, CO, United States, (4)Cooperative Institute for Mesoscale Meteorological Studies, Norman, United States, (5)NASA Langley Research Ctr, Hampton, VA, United States, (6)NCAR, Broomfield, CO, United States, (7)National Center for Atmospheric Research, Boulder, United States, (8)Australian Bureau of Meteorology, Melbourne, Australia
 
High resolution simulations of Southern Ocean boundary layer clouds (600102)
Rachel Atlas, Christopher S. Bretherton and Peter N Blossey, University of Washington, Seattle, WA, United States
 
Particle-Size Distributions of Iron-Containing Aerosol Particles over the West Antarctic Peninsula (600595)
Yuan Gao1, Shun Yu1, Robert M Sherrell2, Songyun Fan1, Kaixuan Bu3 and Barry Lai4, (1)Rutgers University, Department of Earth and Environmental Sciences, Newark, NJ, United States, (2)Rutgers University, Departments of Marine and Coastal Sciences and Earth and Planetary Sciences, New Brunswick, NJ, United States, (3)Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, NJ, United States, (4)Argonne National Laboratory, Argonne, IL, United States
 
Concentrations and Characteristics of Ice Nucleating Particles in Nascent Sea Spray at Macquarie Island (600939)
Thomas Christopher James Hill1, Kevin Robert Barry2, Kathryn Moore1, Jun Uetake1, Carson Hume3, Anne Marie Rauker1, Christina S McCluskey4, Sean Hartery5, Mike Harvey6, Scott D. Chambers7, Alastair G Williams8, Simon Alexander9, Greg M McFarquhar10, Roger Marchand11, Sonia M Kreidenweis12, Paul J DeMott1 and SOAR Science Teams, (1)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (2)Colorado State University, Fort Collins, United States, (3)Colorado State University, Atmospheric Science, Fort Collins, United States, (4)University Corporation for Atmospheric Research, Boulder, United States, (5)NIWA, Christchurch, New Zealand, (6)NIWA, Wellington, New Zealand, (7)Australian Nuclear Science and Technology Organization, Kirrawee, Australia, (8)Australian Nuclear Science and Technology Organization, Kirrawee, NSW, Australia, (9)Australian Antarctic Division, Kingston, TAS, Australia, (10)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (11)University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, (12)Colorado State Univ, Atmospheric Science, Fort Collins, CO, United States
 
Spatial heterogeneity of liquid, ice and mixed phase low-level clouds over the Southern Ocean derived using in situ observations acquired during SOCRATES (610772)
John D'Alessandro, University of Oklahoma Norman Campus, Norman, CA, United States, Greg M McFarquhar, Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, Wei WU, Cooperative Institute for Mesoscale Meteorological Studies, Norman, United States, Jeffrey L Stith, NCAR Rsch Aviation Facility, Broomfield, CO, United States, Martin Schnaiter, Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Aerosol Research (IMK-AAF), Karlsruhe, Germany and Emma Jarvinen, National Center for Atmospheric Research, Boulder, United States
 
Vertical variability of microphysical properties of Southern Ocean stratus clouds observed during the SOCRATES field campaign (624109)
Junshik Um1,2, Greg M McFarquhar3, Seong Hyeon Jang4, Paul J DeMott5, Gregory C Roberts6,7, Cynthia H Twohy8, Martin Schnaiter9, Emma Jarvinen10, Kevin Sanchez6, Darin W Toohey11, Chang Hoon Jung12, Thomas Christopher James Hill13, Christina S McCluskey14 and Kathryn Moore5, (1)Pusan National University, Department of atmospheric sciences, Busan, Korea, Republic of (South), (2)Cooperative Institute for Mesoscale Meteorological Studies, Norman, OK, United States, (3)Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, Norman, OK, United States, (4)Pusan National University, Department of atmospheric sciences, Busan, South Korea, (5)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Centre National de Recherches Météorologiques, Toulouse Cedex 01, France, (8)NorthWest Research Associates Redmond, Redmond, WA, United States, (9)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Aerosol Research (IMK-AAF), Karlsruhe, Germany, (10)National Center for Atmospheric Research, Boulder, United States, (11)Univ Colorado, Boulder, CO, United States, (12)Kyungin Women's University, Health Management, Incheon, South Korea, (13)Colorado State University, Fort Collins, CO, United States, (14)National Center for Atmospheric Research, Boulder, CO, United States
 
The correlation of mesoscale humidity anomalies with mesoscale organization of marine stratocumulus from observations over the ARM Eastern North Atlantic Site and Macquarie Island over the Southern Ocean (629805)
Xiaoli Zhou, University of Washington Seattle, Seattle, WA, United States, Christopher S. Bretherton, University of Washington, Seattle, WA, United States and Roger Marchand, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States
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