CMMAP

themes

Physical Processes

[Reports & Presentations] [Mailing List Archive] [Mailing list links] [Blog]

Working Group Leaders : Chin-Hoh Moeng, Hugh Morrison

Cloud-system-resolving models (CSRMs) used in MMFs or global CSRMs (GCRMs) typically use a horizontal grid size in the range
of 1 to 4 km to resolve cloud systems. However, with this range of grid spacings many important physical processes (e.g., shallow clouds, turbulence, microphysics and radiation) remain subgrid-scale (SGS) and their effects need to be parameterized.

Our objective is to improve parameterizations of these SGS physical processes in MMFs and GCRMs

Reports & Presentations

January 2012 Team Meeting
- The transition from shallow to deep convection in the Giga-LES, Steve Krueger
- Improving low-cloud simulation with an upgraded multiscale modeling framework, Kuan-Man Xu
- Ice cloud particle parameterizations for temperatures of 0 to -90C for CMMAP, Andrew Heymsfield
- Simulation of boundary layer clouds with double-moment bulk microphysics and microphysics-oriented subgrid-scale modeling, Wojciech Grabowski
- Sensitivity of a simulated mid-latitude squall line to parameterization of raindrop breakup, Hugh Morrison
- Do low clouds amplify internal fluctuations of the Pacific climate?, Amy Clement
- Breakout report
August 2011 Team Meeting
- Subgrid-scale fluxes at the PBL top in CRMs, Chin-hoh Moeng
- A Momentum Transport Parameterization for MMF and Preliminary Results, Anning Cheng
- Cloud system-resolving model simulations of aerosol indirect effects on tropical deep convection and its thermodynamic environment, Hugh Morrison
- Investigating the Short Timescale Transition from Light To Heavy Rainfall in the Tropics, Gregory Elsaesser
January 2011 Team Meeting
- Experimenting with SAM's CRM, Chin-Hoh Moeng
- Sensitivity of the Simulation of Boundary-Layer Clouds to Changes in the Vertical Resolution, Anning Cheng & Kuan-Man Xu
- Forecast simulations with a multiscale modeling framework; Movie 1; Movie 2, Gabe Kooperman and Mike Pritchard
- Adapting LES radiation to models at large scales, Robert Pincus
- Cloud system resolving model simulations of aerosol indirect effects on tropical deep convection, Hugh Morrison
- Cloud-aerosol interactions in a multiscale aerosol climate model, Mikhail Ovtchinnikov
August 2010 Team Meeting
- Aerosol-Cloud Interactions in a Multiscale Aerosol Climate Model , Minghuai Wang/li>
- Incorporating partial cloudness in the radiation scheme for a Super-CAM with a third-order turbulence closure used in the embedded CRM , Anning Cheng
- Computationally Efficient Parameterization of Turbulence and Clouds in Coarse-Grid CRMs, Peter Bogenschutz
- Variations of Different Convective Types During Annual Monsoons, William Rossow
- Improvements in Ice Microphysics, Andy Heymsfield
- Simulation of boundary layer clouds with double-moment microphysics and microphysics-oriented subgrid-scale modeling, Wojek Grabowski
January 2010 Team Meeting
- Akira Noda, Recent Progress of the NICAM Research, (4MB)
- The Role of Large-Scale Dynamics in Subtropical Boundary Layer Cloud Processes and Climate Feedbacks, (2MB)
- Phys Proc Plenary Report, Chin-Hoh Moeng (3MB)
- Developing SGS turbulence models for CRMs or MMFs, Chin-hoh Moeng (6MB)
- Aerosol-linked ice nuclei prediction in the two-moment SAM and future plans, Mark Branson (1MB)
- Research Update, Pete Bogenschutz (< 1MB)
- Development of a Third-order Closure Turbulence Model with Subgrid-scale Condensation, Grant Firl (17MB)
- Eddy-diffusivity/Mass-flux PBL parameterization: Dry convection and stratocumulus cases, Marcin Witek (5MB)
- SPCAM simulation of orogenic diurnal mesoscale convective organization in the lee of the Rockies, Mike Pritchard (1MB)
- Indirect aerosol effects in idealized simulations of convective-radiative quasi-equilubDouble-moment microphysics, Wojciech Grabowski (1MB)
July 2009 Team Meeting
- Steve Krueger: What Can CRM and MMF Simulations Tell Us About Critical Phenomena in Atmospheric Precipitation?, (7MB)
- Mike Pritchard: Taking a Closer Look at the Daily Rainfall Cycle in the CSU MMF, (12MB)
- Sonia Kreidenweis: Prediction and impacts of global ice nuclei distributions, (1MB)
- Anning Cheng: A Unified Mass Flux and Higher-order Turbulence Closure for Boundary-layer and Deep Convective Clouds, (2MB)
- Pete Bogenschutz: PDF-Based SGS Parameterizations For MMF, (12MB)
- Chin-Hoh Moeng: Giga-LES: Evaluation of SGS schemes in CRMs, (2MB)
- Eric Tromeur: Cloud Organization associated with frontal convection in Midlatitude Cyclones, (6MB)
- Tom Cram: An evaluation of the radiation and turbulence parameterizations in the Vector Vorticity Model, (4MB)
- Wei-Kao Tao: Three improvements of microphysics in GSFC-MMF
- Breakout Report (< 1MB)
January 2009 Team Meeting
- C-H Moeng, The tropical marine boundary layer under a deep convection system: a large-eddy simulation (4MB)
- W Grabowski, A Hybrid Bulk-bin Approach to Model Warm-rain Processes (work in progress in Toulouse) (1MB)
- A Heymsfield, Improvements to One and Two Moment Ice Cloud Parameterizations (1MB)
- Z Eitzen, Analysis of Tropical Convective Systems with Extended Cloud Object Data from CERES (1MB)
- A Cheng, A parameterization of turbulence enstrophy for VVM (<1MB)
- N Patton, Impact of tall vegetation on turbulent flow over orography (4MB)
- Breakout Report (1MB)
July 2008 Team Meeting
- Breakout Report
- R Pincus, Bringing climate physics (better radiation) to cloud models and the MMF
- S Krueger, Improving the representation of SGS turbulence and clouds in course-grid CRMs (3MB)
- A Heymsfield, Liquid water and homogeneous ice nucleation in tropical convection (3MB)
- P Henderson, Long evaluations of cloud in SAM at the SGP (3MB)
- A ChengImplementation of IPHOC in VVCM: Tests of GCSS cases (2MB)
January 2008 Team Meeting
- Breakout Report (3MB)
- M Chikira, Development of a cumulus scheme with vertical variable entrainment rate
- CM Wu, Diurnal cycle over land: What controls the transition from shallow to deep convection? (4MB)
- P Blossey, Sensitivity of MMF low cloud climatology to resolution
- S Krueger, Grid-size dependence of shallow cumulus simulations
- CH Moeng, High resolution turbulence resolving computations--an example of a very-large simulation (4MB)
- H Morrison, Impact of cloud microphysics on stratiform precipitation associated with squall lines (3MB)
- KM Xu, Using CERES tropical convective cloud object observations to evaluate the cloud physical/radiative properties of ERA-40 and ECMWF operational analyses
August 2007 Team Meeting
- Moeng, Krueger breakout presentation, Deep and Shallow Convection (1MB)
- Moeng, Krueger report, Deep and Shallow Convection (1MB)
February 2007 Team Meeting
- Steve Krueger, Chin-Hoh Moeng presentation, Focus on deep and shallow convection and turbulence (4MB)
- Steve Krueger, Chin-Hoh Moeng summary report, Focus on deep and shallow convection and turbulence (1MB)

Other meeting presentations found here.

Physical Processes Email Archive

Hugh Morrison, agenda for physical processes breakout/CMMAP, 1-10-12
Hugh Morrison, reminder - request for presentations, 1-5-12
Hugh Morrison, request for presentations - CMMAP Physical Processes breakout, 12-20-11
Chin-Hoh Moeng, Physical Processes WG meeting, 7-19-11
Chin-Hoh Moeng, Email problems with CMMAP mailing lists, 1-6-11
Steve Krueger, CMMAP Physical Processes breakout session, 8-2-10
Steve Krueger, CMMAP Physical Processes theme breakout session, 7-15-10
Chin-Hoh Moeng, breakout session, 1-5-10
Steve Krueger, CMMAP Physical Processes research progress updates, 1-4-10
Chin-Hoh Moeng, renewal proposal on Physical Processes Theme, 8-17-09
Chin-Hoh Moeng, short talks at the breakout session, 7-7-09
Chin-Hoh Moeng, group meeting at the NYC workshop, 12-18-08
Chin-Hoh Moeng, informal talks during the breakout session, 7-14-08
Chin-Hoh Moeng, a large-domain LES of tropical deep convection, 2-11-08
Marat Khairoutdinov, Re: agenda MJO breakout, 1-15-08
Steve Krueger, agenda for shallow & deep break out session, 1-15-08
Steve Krueger, CMMAP : Interactions of Deep and Shallow Convection and Turbulence, 1-12-08
Steve Krueger, CMMAP Deep and Shallow Convection and Turbulence , 1-5-08
Steve Krueger, CMMAP Deep and Shallow Convection and Turbulence , 10-8-07
Steve Krueger, Re: microphysics within CMMAP , 8-4-07
Bjorn Stevens, no subject , 8-4-07
Steve Krueger, no subject , 8-2-07
Kelley Wittmeyer, Interactions... Blog, 3-8-07
Chin-Hoh Moeng, Break-out Group on deep and shallow/turbulence convection, 2-11-07