A14D:
Large-Eddy and High-Resolution Simulations for Improved Understanding and Parameterization of Clouds and Boundary Layer Processes I


Session ID#: 11025

Session Description:
Large-eddy simulations (LES) and high-resolution cloud-resolving models, i.e., limited-area models (LAM), are increasingly used to understand atmospheric processes with the goal of improving climate and weather model parameterizations. Early approaches used idealized scenarios, but the use of real-world configurations is becoming more common and offers great potential. The jump from idealized to realistic configurations brings with it many complicating factors and questions regarding how to best use simulations to develop robust parameterizations. Contributions are sought demonstrating novel approaches using real-world LES and LAM simulations for parameterization development and improving process-level understanding. Also of interest are contributions demonstrating how to overcome difficulties running real-world, ultra-high-resolution configurations, e.g., how best to incorporate observations to constrain the simulation through data assimilation or other techniques, include surface heterogeneity, initialize the model when clouds are present, evaluate the forcing and simulation accuracies, and increase the odds of successful simulations across a range of meteorological conditions.
Primary Conveners:  William I Gustafson Jr, Pacific Northwest National Laboratory, Richland, WA, United States
Conveners:  Andrew Mark Vogelmann, Brookhaven Natl Lab, Upton, NY, United States and Roel Neggers, University of Cologne, Cologne, Germany
Chairs:  William I Gustafson Jr, Pacific Northwest National Laboratory, Richland, WA, United States and Andrew Mark Vogelmann, Brookhaven Natl Lab, Upton, NY, United States
OSPA Liaisons:  Vera Schemann, University of Cologne, Institute for Geophysics and Meteorology, Cologne, Germany
Co-Sponsor(s):
  • AMS: American Meteorological Society -
Index Terms:

3314 Convective processes [ATMOSPHERIC PROCESSES]
3315 Data assimilation [ATMOSPHERIC PROCESSES]
3323 Large eddy simulation [ATMOSPHERIC PROCESSES]
3365 Subgrid-scale (SGS) parameterization [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Welcoming Remarks
Chris Snyder, National Center for Atmospheric Research, Boulder, CO, United States
Zhijin Li1, Xiaoping Cheng2, William I Gustafson Jr3, Heng Xiao3, Satoshi Endo4, Andrew Mark Vogelmann5 and Tami Toto4, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)University of California Los Angeles, Los Angeles, CA, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Brookhaven National Laboratory, Upton, NY, United States, (5)Brookhaven Natl Lab, Upton, NY, United States
Ann M Fridlind1, Jasmine Remillard2, Andrew S Ackerman1, David B Mechem3, Pavlos Kollias4, Edward P Luke5, Patrick Y Chuang6, Mikael Witte6 and Robert Wood7, (1)NASA Goddard Institute for Space Studies, New York, NY, United States, (2)Columbia University of New York, Palisades, NY, United States, (3)University of Kansas, Lawrence, KS, United States, (4)McGill University, Montreal, QC, Canada, (5)Brookhaven National Lab, Upton, NY, United States, (6)University of California Santa Cruz, Santa Cruz, CA, United States, (7)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States
David M Romps1, Rusen Oktem2 and Alexander Benedict Charn1, (1)University of California Berkeley, Berkeley, CA, United States, (2)Lawrence Berkeley National Lab, Fremont, CA, United States
Didier Ricard, Antoine Verrelle and Christine Lac, CNRM-GAME, Toulouse Cedex 01, France
Mohamed S Ghonima, University of Calif San Diego, La Jolla, CA, United States, Thijs Heus, Cleveland State University, Solon, OH, United States, Joel R Norris, University of California San Diego, La Jolla, CA, United States and Jan P Kleissl, Univ of California, San Diego, San Diego, CA, United States
Branko Kosovic and Pedro Angel Jimenez, National Center for Atmospheric Research, Boulder, CO, United States
Fleur Couvreux Jr1, Eric Bazile2, Patrick Le Moigne1 and Guylaine Canut1, (1)CNRM-GAME, Toulouse Cedex 01, France, (2)Météo-France, CNRM/GMAP/PROC, Toulouse, France