GEWEX Convection-Permitting Climate Modeling Workshop

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Tuesday September 6th 2016


12:00-1:00 Registration

1:00-1:30 Welcome by Roy Rasmussen, Graeme Stephens, and James Hurrell (NCAR Director)

1:30-2:00 Christoph Schaer (Invited) Challenges in Convection-Resolving Climate Modeling

2:00-3:00 Model Evaluation Part 1(Chair: Roy Rasmussen)

  • 2:00-2:20 Prein: Simulating convective storms: An object based evaluation of a continental-scale convection permitting climate simulation

  • 2:20-2:40 Trier: Influences of PBL Parameterizations on Warm-Season Convection-Allowing Simulations

  • 2:40-3:00 Chaboureau: Object approaches for exploring high-resolution simulations

3:00-3:30 Break

3:30-4:30 Model Evaluation Part 2(Chair: Roy Rasmussen)

  • 3:30-3:50 Cook: Improved Simulation of the Diurnal Cycle of Precipitation with Convection-Permitting Climate Modeling

  • 3:50-4:10 Iguchi: Precipitation Variability and Diurnal Cycle of Convection-Permitting Deterministic Simulations versus Mesoscale Multi-Physics Ensemble Simulations

  • 4:10-4:30 Mahoney: The role of “gray zone” convective model physics in high-resolution simulations of the 2013 Colorado Front Range Flood

4:30-5:30 Breakout1: Value of CPMs

5:30-5:45 Reportout1

5:45-8:00 Poster Session 1 & Icebreaker


Wednesday September 7th 2016


8:30-9:00 Roy Rasmussen (invited) Changes in the Western U.S. snowpack with a CONUS-scale convection-permitting climate model

9:00-10:00 Climate change assessments Part 1(Chair: Andreas Prein)

  • 9:00-9:20 Dai: Changes in Precipitation Characteristics over North America by the Late 21st Century Simulated by a Convection-Permitting Model

  • 9:20-9:40 Di Luca: Using convection permitting simulations to study the intensity of extreme East Coast Lows

  • 9:40-10:00 Hoogewind: The Impact of Climate Change on Severe Convective Storms in the United States: Insight from High-Resolution Dynamical Downscaling

10:00-10:30 Break

10:30-11:50 Climate change assessments Part 2(Chair: Andreas Prein)

  • 10:30-10:50 K. Rasmussen: High-resolution regional climate simulations of warm season convection in the United States

  • 10:50-11:10 Ban: Scaling and Intensification of Extreme Precipitation in Climate Change Simulations at Kilometer-Scale Resolution

  • 11:10-11:30 Kawase: Challenges of convection-permitting regional climate simulations in Japan

  • 11:30-11:50 Gutmann: Internal Variability and Convection Permitting Regional Climate Simulations

11:50-12:50 Lunch

12:50-2:00 Panel Discussion: Approaches to CPCSs (Chair: Roy Rasmussen)

2:00-2:40 CPM grid spacing(Chair: Ray Arritt)

  • 2:00-2:20 Fosser: Impact of different convection permitting resolutions on the representation of heavy rainfall over the UK

  • 2:20-2:40 Noda: Resolution dependency of clouds and precipitation derived from 14-kilometre- to sub-kilometer-mesh nonhydrostatic global simulations

2:40-3:10 Bill Skamarock (invited) Variable-resolution global atmospheric modeling spanning convective to planetary scales

3:10-3:40 Break

3:40-5:00 Land-Atmosphere interactions(Chair: Ray Arritt)

  • 3:40-4:00 Flores: The Accidental Climate Modeler: The Increasingly Important Role of Land-Atmosphere Models for High Resolution Ecohydrologic Process Study

  • 4:00-4:20 Goergen: Added value and land-atmosphere coupling in convection-permitting WRF climate simulations over a Middle European domain

  • 4:20-4:40 Letcher: Dynamic and non-local responses to the snow albedo feedback over the Colorado Rocky Mountains

  • 4:40-5:00 Minder: Diagnosing and evaluating the snow-albedo feedback over complex terrain in high-resolution regional climate change simulations

5:00-6:00 Poster Session 2

6:00-8:00 Reception (FL1/ FL2 - Cafe Patio)


Thursday September 8th 2016


8:30-9:00 Graeme Stephens (invited) Satellite observations

9:00-10:00 Observational Datasets and global CPM efforts (chair: Stefan Sobolowski)

  • 9:00-9:20 Newman: Development of Gridded Ensemble Precipitation and Temperature Datasets over the Entire 50 United States

  • 9:20-9:40 Ekstrom: Understanding changes in short-duration rainfall extremes under global warming: The GEWEX cross-cut on sub-daily rainfall extremes (INTENSE)

  • 9:40-10:00 Malardel: Is the ECMWF model ready for convection-permitting modeling?

10:00-10:30 Break

10:30-11:00 Gary M. Lackmann (Invited) High-Resolution Numerical Studies of Tropical Cyclones and Climate Change

11:00-12:00 Tropical Climate Part 1(chair: Graeme Stephens)

  • 11:00-11:20 Weber: Why Convection-Allowing NWP is Needed: An Evaluation of CFSv2/GFS Tropical Convection on Subseasonal Time Scales

  • 11:20-11:40 Nolan: Comparisons of Parameterized versus Explicit Convection in Global-Scale Simulations Using the WRF Model in Aquachannel and Aquapatch Configurations

  • 11:40-12:00 Ruppert: Tropical Climate Forcing by the Diurnal Cycle of Convective Clouds

12:00-1:00 Lunch

1:00-1:40 Tropical Climate Part 2(chair: Graeme Stephens)

  • 1:00-1:20 Moncrieff: Simulation and Parameterization of Organized Tropical Convection

  • 1:20-1:40 Wang: Cloud, microphysics, radiation and dynamics – lessons from cloud-permitting simulations of the DYNAMO MJO events

1:40-2:10 Stefan Sobolowski (invited) CORDEX Flagship Pilot Study: Convective phenomena at high resolution over Europe and the Mediterranean

2:10-3:10 Breakout 3: community building

3:10-3:40 Break

3:40-4:00 Reportout 3

4:00-5:00 Open discussion and future plans (chair: Roy Rasmussen)