First Lorenz Center Workshop

“Water in the Climate System”


February 10-12, 2014


MIT Endicott House


Dedham, Massachusetts


Workshop Program (click here for pdf file)



Sunday, February 9th


Afternoon:  Check-in


6:00: Reception, Gun Room


7:00: Dinner, Dining Room


Monday, February 10th  



7:15 – 8:15:    Breakfast, Dining Room


8:30 – 8:45:     Introduction to the Lorenz Center and to the Workshop – Kerry Emanuel and Dan Rothman



1.  Convection   Chris Bretherton, Session Chair



8:45 – 9:45:  Presentations

Some theoretical questions about convective parameterization –  Isaac Held

New developments related to gross moist stability – David Raymond

Can a bulk plume represent the effect of aqueous-phase reactions in shallow cumuli? – Ji Nie, Zhiming Kuang, Daniel Jacob, and Jiahua Guo


9:45 – 10:15:  Break


10:15 – 11:00:  Presentations

Sensitivity of deep convection to free-tropospheric humidity in a hierarchy of models – Gilles Bellon

Large-scale structures in moist atmospheric convection – Alexandre Pieri, Jost von Hardenberg, Antonio Parodi, and Antonello Provenzale

11:00 – 12:00:  Discussion of Convection


12:15 – 1:30:   Lunch, Dining Room



2.  Water Vapor, Clouds, and Climate   John Marshall, Session Chair


2:00 – 3:00:  Presentations


Radiative Convective Equilibrium (RCE) – Bjorn Stevens

Radiative-Convective Instability – Kerry Emanuel, Allison Wing, and Emmanuel Vincent

Self-Aggregation of Convection in Radiative-Convective Equilibrium – Caroline Muller


3:00 – 3:30:  Break


Water Vapor, Clouds, and Climate – continued


3:30 – 4:30 Presentations

Water vapor as an active scalar – Adam Sobel

On the role of convective aggregation in climate: observational and modeling perspectives – Sandrine Bony

Stratospheric water vapor and climate – Ted Shepherd


4:30 – 5:30:  Discussion of Water Vapor, Clouds, and Climate


6:00:  Reception, Gun Room


7:00:  Dinner, Dining Room

Tuesday, February 11th


7:15 – 8:15:  Breakfast, Dining Room


3. Moisture and Weather   Sandrine Bony, Session Chair

8:45 – 9:45: Presentations

A near-global CRM study of moisture and tropical atmospheric predictability  – Chris Bretherton and Marat Khairoutdinov

The Pliocene Permanent El Nino and Atmospheric Superrotation– Nathan Arnold and Eli Tziperman

Towards a theory for free-tropospheric relative humidity – David Romps



9:45 – 10:15:  Break


10:15 – 11:00:  Presentations

Weather Regimes and a Stochastic/Deterministic Strategy for Ultra-High Resolution Simulation of Earth’s Water Cycle – Tim Palmer

The role of mid-tropospheric humidity in tropical cyclone genesis and intensification – Brian Soden, Eui-Seok Chung, and David Yeoman


11:00 – 12:00:  Discussion of Moisture and Weather


12:15 – 1:30:   Lunch, Dining Room



4.  Potpourri   Alan Betts, Session Chair


2:00 – 3:00:  Presentations

Freshwater transport in the coupled ocean-atmosphere system: a passive ocean – John Marshall and David Ferreira

Bistability of the climate around the habitable zone: a thermodynamic investigation – Valerio Lucarini, Robert Boschi, Edilbert Kirk, Nicholas Iro, Frank Lunkeit, and Salvatore Pascale

The abrupt seasonal transition of the Northern Hemisphere general circulation: mechanisms and future changes – Tiffany Shaw



3:00 – 3:30:  Break



Potpourri – continued       


3:30 –  4:30:   Presentations

Aridity and the Branching of River Networks – Dan Rothman

A symmetric energy balance as a macroscopic constraint on Earth’s climate? – Graeme Stephens

Regional feedback patterns and regional climate predictability – Gerard Roe


4:30 – 5:30:  Discussion of Potpourri


6:00:  Reception, Gun Room


7:00:  Dinner, Dining Room



Wednesday, February 12th



7:30 – 8:30:  Breakfast, Dining Room


5. Precipitation and Climate   Bjorn Stevens, Session Chair

9:00 – 9:45: Presentations

Contrasting responses of mean and extreme snowfall to climate change – Paul O’Gorman

Variability and Change in Our Water:  Some Results from Climate Model Ensembles – Susan Solomon, Ken Strzepek, and Brent Boehlert


9:45 – 10:15:  Break


10:15 – 11:00:  Presentations

Coupling Climate to Clouds, Land-use, Precipitation and Snow – Alan Betts

Rapid adjustments of precipitation to climate forcings  - are they real and what  can we learn from them? – Piers Forster


11:00 – 12:00:  Discussion of Precipitation and Climate


12:00 – 1:15:   Lunch, Dining Room



Workshop ends