A22A:
Cloud-Scale Processes: Modeling, Observation, and Parameterization for Larger Scale Models I


Session ID#: 10707

Session Description:
Clouds continue to defy our understanding and are major sources of uncertainty in weather forecasting and climate projection. Key to addressing such outstanding cloud challenges are those processes that occur on space-time scales of individual clouds and smaller, including entrainment/detrainment, turbulent mixing, turbulence, cloud microphysics, cloud-aerosol interactions, boundary layer processes, radiation, and process interactions. These (sub-) cloud processes, whose parameterizations will likely become more important as weather and climate models increase their resolutions, pose particular challenges to modeling studies, observations, as well as parameterization development..This session focuses on modeling (e.g., LES and DNS), observations, and parameterization of such (sub-) cloud processes. Also invited are studies on their interactions and unified treatment of different processes, and integration from observations to theories to models.
Primary Convener:  Yangang Liu, Brookhaven National Laboratory, Upton, NY, United States
Conveners:  Leo Donner, NOAA Geophysical Fluid Dynamics Laboratory, Princeton, United States, Pavlos Kollias, Stony Brook University, Stony Brook, NY, United States and Yangang Liu, Brookhaven National Laboratory, Upton, NY, United States
Chairs:  Yangang Liu, Brookhaven National Laboratory, Upton, NY, United States and Leo Donner, NOAA Geophysical Fluid Dynamics Laboratory, Princeton, United States
OSPA Liaison:  Yangang Liu, Brookhaven National Laboratory, Upton, NY, United States

Cross-Listed:
  • NG - Nonlinear Geophysics
Index Terms:

3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3311 Clouds and aerosols [ATMOSPHERIC PROCESSES]
3323 Large eddy simulation [ATMOSPHERIC PROCESSES]
3337 Global climate models [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

On the assumed PDF method for climate simulations (Invited) (73332)
Peter Bogenschutz1, Andrew Gettelman1, Vincent E Larson2, Chih-Chieh Chen1, Katherine Thayer-Calder3, Hugh Morrison1, Steven K Krueger4 and Cheryl Craig1, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)University of Wisconsin-Milwaukee, Milwaukee, WI, United States, (3)University of Wisconsin Milwaukee, Milwaukee, WI, United States, (4)University of Utah, Atmospheric Sciences, Salt Lake City, UT, United States
Chaotic Convection in CAM (Invited) (72884)
Prof. David A Randall, Colorado State University, Fort Collins, United States, Mark Branson, Colorado State University, Fort Collins, CO, United States, Radha Dutta, University of Massachusetts Amherst, Mathematics, Amherst, MA, United States and Todd Russell Jones, Colorado State University, Atmospheric Science, Fort Collins, CO, United States
An application of statistical mechanics for representing equilibrium perimeter distributions of tropical convective clouds (85874)
Timothy J Garrett, University of Utah, Atmospheric Science, Salt Lake City, United States, Shailesh Alva, University of Utah, Salt Lake City, UT, United States, Ian Bruce Glenn, University of California Los Angeles, JIFRESSE, Los Angeles, CA, United States and Steven K Krueger, University of Utah, Atmospheric Sciences, Salt Lake City, UT, United States
Relationships of Entrainment Rate with Dynamical and Thermodynamic Properties in Shallow Convection (63320)
Chunsong Lu1, Yangang Liu2, Guang Jun Zhang3, Xianghua Wu1, Satoshi Endo2, Le Cao1, Yueqing Li4 and Xiaohao Guo1, (1)NUIST Nanjing University of Information Science and Technology, Nanjing, China, (2)Brookhaven National Laboratory, Upton, NY, United States, (3)University of California San Diego, La Jolla, CA, United States, (4)Institute of Plateau Meteorology, China Meteorological Administration, Chengdu, China
Cloud microphysical relationships and their implication on entrainment and mixing mechanisms for marine and continental stratocumulus clouds (Invited) (71966)
Seong Soo Yum1, Jae Min Yeom2, Jian Wang3, Yangang Liu4, Gunnar Senum4, Stephen R. Springston4, Robert L McGraw5 and Chunsong Lu6, (1)Yonsei University, Seoul, Korea, Republic of (South), (2)Yonsei University, Atmospheric Science, Seoul, Korea, Republic of (South), (3)Brookhaven Natl Lab, Upton, United States, (4)Brookhaven National Laboratory, Upton, NY, United States, (5)Brookhaven National Laboratory, Environmental and Climate Sciences, Upton, United States, (6)NUIST Nanjing University of Information Science and Technology, Nanjing, China
Detecting Coherent Structures in Large-Eddy Simulation of Shallow Convection (61448)
Seung-Bu Park, Columbia University of New York, Palisades, NY, United States, Pierre Gentine, Columbia University, Earth Institute, New York, United States, Kai Schneider, Aix-Marseille Université, Marseille, France and Marie Farge, LMD-IPSL-CNRS, Paris, France
Using In Situ Observations and Satellite Retrievals to Constrain Large-Eddy Simulations and Single-Column Simulations: Implications for Boundary-Layer Cloud Parameterization in the NASA GISS GCM (85549)
Jasmine Remillard, Columbia University of New York, Palisades, NY, United States
Observed Co-variability of Aerosol-Cloud Processes and Meteorological Regimes in Continental Clouds (74923)
Allison C McComiskey, Graham Feingold and Elisa Sena, NOAA Boulder, Boulder, CO, United States

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