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Radiation and Climate
Gordon Research Conference

Towards Understanding the Interactions Between Radiation, Clouds, Aerosol, Precipitation and Climate

Dates

July 26-31, 2015

Location

Bates College
Lewiston, ME

Organizers

Chairs:
Bernhard Mayer & Eugene E. Clothiaux

Vice Chairs:
David Turner & Dargan Frierson

Meeting Description

The 2015 Gordon Research Conference (GRC) on Radiation and Climate will present cutting-edge research on physical processes relevant to climate, particularly those in which the interactions between radiation, clouds, aerosols, and precipitation play a major role. The Conference will feature talks highlighting the challenges in understanding these processes, modeling them, and ascertaining their impacts on cloud and aerosol feedbacks and/or rapid adjustments and the surface radiation budget. Several sessions will also focus on recent developments in ice cloud microphysics as well as new approaches for remote sensing of clouds and cloud-scale processes.

The invited speakers will present the most important recent advances and future challenges in these areas. The Conference will bring together a collection of leading investigators who are at the forefront of their field, and will provide opportunities for scientists, especially junior scientists and graduate students, to present their work in poster format and exchange ideas with leaders in the field. The collegial atmosphere of this Conference, with programmed discussion sessions as well as opportunities for informal gatherings in the afternoons and evenings, provides an avenue for scientists from different disciplines to brainstorm and promotes cross-disciplinary collaborations in the various research areas represented.

Graduate students and early-career scientists will also have the opportunity to present their work at a special Gordon Research Seminar (GRS) held immediately before the GRC. To further enhance the exchange between young and experienced scientists, selected talks from the GRS will be presented in a "best of" session to the grand audience of the GRC.

Related Meeting

This GRC was held in conjunction with the "Radiation and Climate" Gordon Research Seminar (GRS). Refer to the associated GRS program page for more information.

Contributors

Final Meeting Program

Sunday
2:00 pm - 9:00 pmArrival and Check-in
6:00 pmDinner
7:30 pm - 7:40 pmWelcome / Introductory Comments by GRC Site Staff
7:40 pm - 9:30 pmKeynote Session: Key Outstanding Issues in Radiation and Climate
Discussion Leader: Stephen Klein (Lawrence Livermore National Laboratory, USA)
7:40 pm - 8:20 pmUlrike Lohmann (ETH Zurich, Switzerland)
"Mixed-Phase Clouds: How Important Are They and Can Aerosols Change Their Impact on Climate?"
8:20 pm - 8:35 pmDiscussion
8:35 pm - 9:15 pmBjorn Stevens (Max-Planck-Institut fur Meteorologie, Germany)
"Clouds and Circulation: The Elephant in the Room"
9:15 pm - 9:30 pmDiscussion
Monday
7:30 am - 8:30 amBreakfast
8:30 amGroup Photo
9:00 am - 12:30 pmClosing the Energy Budget
Discussion Leader: Graeme Stephens (Jet Propulsion Laboratory, NASA, USA)
9:00 am - 9:40 amSeiji Kato (NASA Langley Research Center, USA)
"Closing the Energy Budget: Observational Perspective"
9:40 am - 10:00 amDiscussion
10:00 am - 10:30 amCoffee Break
10:30 am - 11:10 amKevin Trenberth (National Center for Atmospheric Research, USA)
"Climate Feedbacks and Relationships Between Top-of-Atmosphere Radiation and Temperatures on Earth"
11:10 am - 11:30 amDiscussion
11:30 am - 12:10 pmMaike Ahlgrimm (European Centre for Medium-Range Weather Forecasts, United Kingdom)
"Cloud and Precipitation Parameterizations and Their Effect on the Energy Budget"
12:10 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session
6:00 pmDinner
7:30 pm - 9:30 pmRemote Sensing of Warm Rain, Snow, and Cloud Properties
Discussion Leader: Matthew Lebsock (Jet Propulsion Laboratory, NASA, USA)
7:30 pm - 8:10 pmTristan L'Ecuyer (University of Wisconsin, USA)
"From Warm Rain to Falling Snow: The Challenge of Observing and Modeling Light Precipitation"
8:10 pm - 8:30 pmDiscussion
8:30 pm - 9:10 pmChristian Kummerow (Colorado State University, USA)
"Precipitation and the Changing Water and Energy Cycles"
9:10 pm - 9:30 pmDiscussion
Tuesday
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmCloud Feedbacks, Rapid Adjustments, and Microphysical Parameterizations
Discussion Leader: Susan Van Den Heever (Colorado State University, USA)
9:00 am - 9:40 amHugh Morrison (National Center for Atmospheric Research (NCAR), USA)
"Cloud Microphysical Parameterizations: New Approaches"
9:40 am - 10:00 amDiscussion
10:00 am - 10:30 amCoffee Break
10:30 am - 11:10 amJerry Harrington (Pennsylvania State University, USA)
"Parameterizing Ice Particle Habit Transitions: Constraining Models with Laboratory Measurements"
11:10 am - 11:30 amDiscussion
11:30 am - 12:10 pmMark Zelinka (Lawrence Livermore National Laboratory, USA)
"Cloud Feedbacks and Rapid Adjustments: Where We Are and Where We Are Headed"
12:10 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session
6:00 pmDinner
7:30 pm - 9:30 pmImpact of Ice Crystal Microphysics on Ice Cloud Radiative Properties
Discussion Leader: Ping Yang (Texas A&M University, USA)
7:30 pm - 8:10 pmThomas Leisner (Institute for Meteorology and Climate Research, Germany)
"The Secret Lives of Ice Clouds: Laboratory Studies"
8:10 pm - 8:30 pmDiscussion
8:30 pm - 9:10 pmBastiaan van Diedenhoven (Columbia University, USA)
"Linking Fundamental Optical Properties of Ice Crystals with Their Basic Microphysical Properties: Parameterization and Remote Sensing"
9:10 pm - 9:30 pmDiscussion
Wednesday
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmNew Cloud Property Remote Sensing Techniques
Discussion Leader: Alexander Marshak (Goodard Space Flight Center, NASA, USA)
9:00 am - 9:40 amChristine Chiu (University of Reading, United Kingdom)
"3D Cloud Observations from Synergistic Surface Measurements - Promises and Challenges"
9:40 am - 10:00 amDiscussion
10:00 am - 10:30 amCoffee Break
10:30 am - 11:10 amHoward Barker (Environment Canada, Canada)
"On the Application of 3D Solutions of the Radiative Transfer Equation in Remote Sensing and Dynamical Models"
11:10 am - 11:30 amDiscussion
11:30 am - 12:10 pmTobias Zinner (Ludwig-Maximilians-Universitaet Munich, Germany)
"Cloud Side Remote Sensing to Determine Aerosol-Cloud Interaction"
12:10 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session
6:00 pmDinner
7:00 pm - 7:30 pmBusiness Meeting
Nominations for the Next Vice Chair; Fill in Conference Evaluation Forms; Discuss Future Site and Scheduling Preferences; Election of the Next Vice Chair
7:30 pm - 9:30 pmCloud-Scale Processes
Discussion Leader: Graham Feingold (National Oceanic and Atmospheric Administration, USA)
7:30 pm - 8:10 pmMarat Khairoutdinov (Stony Brook University, USA)
"Cloud, Precipitation, and Radiation Interactions in Process Models"
8:10 pm - 8:30 pmDiscussion
8:30 pm - 9:10 pmRuby Leung (Pacific Northwest National Laboratory, USA)
"Subgrid Cloud Parameterizations of Terrain and Cloud-Radiation Interaction"
9:10 pm - 9:30 pmDiscussion
Thursday
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmFrontiers in Modeling and Observational Studies of Aerosol Effective Radiative Forcing
Discussion Leader: Ralph Kahn (NASA Goddard Space Flight Center, USA)
9:00 am - 9:40 amSteven Ghan (Pacific Northwest National Laboratory, USA)
"Constraining Radiative Forcing by Cloud-Aerosol Interactions"
9:40 am - 10:00 amDiscussion
10:00 am - 10:30 amCoffee Break
10:30 am - 11:10 amDavid Diner (Jet Propulsion Laboratory, California Institute of Technology, USA)
"Capabilities and Challenges in Remote Sensing of Aerosol Properties Using Multiangular and Polarimetric Imaging"
11:10 am - 11:30 amDiscussion
11:30 am - 12:10 pmPhilip Stier (University of Oxford, United Kingdom)
"How Can We Observe Aerosol-Cloud Interactions Globally?"
12:10 pm - 12:30 pmDiscussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 6:00 pmPoster Session
6:00 pmDinner
7:30 pm - 9:30 pmThe Future of Climate and Radiation / Selected Poster Presentations
Discussion Leader: Geeta Persad (Princeton University / Geophysical Fluid Dynamics Laboratory, NOAA, USA)
7:30 pm - 7:50 pmEdward Gryspeerdt (Leipzig Institute for Meteorology, Germany)
"Cloud Fraction and Satellite-Derived Aerosol-Cloud Relationships"
7:50 pm - 8:00 pmDiscussion
8:00 pm - 8:20 pmRaphaela Vogel (Max Planck Institute for Meteorology, Germany)
"The Role of Precipitation and Organization in the Response of Shallow Trade-Wind Clouds to Warming"
8:20 pm - 8:30 pmDiscussion
8:30 pm - 8:50 pmJason Cole (Canadian Centre for Climate Modelling and Analysis, Canada)
"Solar Radiation Management and Precipitation: The Influence of the Carbon Cycle"
8:50 pm - 9:00 pmDiscussion
9:00 pm - 9:20 pmBrian Kahn (Jet Propulsion Laboratory, NASA, USA)
"The Clear-Sky Super Greenhouse Effect in CMIP5 and NASA Aqua Observations"
9:20 pm - 9:30 pmDiscussion
Friday
7:30 am - 8:30 amBreakfast
9:00 amDeparture
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