Programme

A preliminary agenda for CFMIP-CloudSense 2025 is given below, and is subject to change.

DAY 1: Monday July 7

Day 1 starts in the early afternoon, leaving time for informal discussions in the morning

10am-1 pm - Registration

Session #1: Cloud Processes

Chairs: Paulo Ceppi and Hugo Lambert

1:00-1:15 - Welcome and Introductory Remarks

1:15-1:30 - Insights into cloud properties from EarthCARE synergy retrievals and radiative closure – Robin Hogan

1:30-1:45 - Vertical motions inside convection analyzed from EarthCARE satellite Cloud Radar observations and a global storm-resolving simulation - Masaki Satoh

1:45-2:00 - The INCUS Mission: Measuring Convective Mass Flux from Space - Susan C. van den Heever

2:00-2:15 - Determining cloud-base mesoscale vertical velocity with satellites – Geet George

2:15-2:30 - Discussion

2:30-3:00 pm - Break

Session #2: Cloud Processes and Feedbacks

Chairs: Clare Singer and Paul Field

3:00-3:15 - From thermals to cloud mesoscale patterns: Insights from field campaigns, theory and a simple statistical model – Sandrine Bony

3:15-3:30 - Climate feedbacks: Can we close the loop? – Mark Webb

3:30-3:45 - Decomposing Cloud Radiative Feedbacks By Cloud-Top Phase – Casey Wall

3:45-4:00 - Causes of recent trends and extreme anomalies in cloud-radiative effects, Mark Zelinka

4:00-4:15 - The impact of relationships between components of radiative feedback on assessments of Earth's climate sensitivity, Hugo Lambert

4:15-4:30 - Discussion

4:30-6:30 pm - Poster Session #1

6:30 pm Welcome Reception

DAY 2: Tuesday July 8

Session #3: Cloud Processes, Microphysics, and Feedbacks

Chairs: Xinyi Huang and Alejandro Bodas-Salcedo

9:00-9:15 - Using cold-air outbreaks as natural laboratories to understand the production of ice in shallow mixed-phase clouds and their role in climate – Ben Murray

9:15-9:30 - A quasi-Lagrangian LES-SCM case library of marine cold-air outbreaks to investigate cloud phase feedback – Florian Tornow

9:30-9:45 - Projected changes in low cloud albedo in Southern Ocean extratropical cyclones induced by morphological transitions - Shuoyun Tong

9:45-10:00 - Greater Supercooled Cloud Proportion, Less Warming: A Challenge to the Cloud Phase Feedback Consensus – Greg Cesana

10:00-10:15 - Where does snow become rain with atmospheric warming? – Jennifer Kay

10:15-10:30 - Discussion

10:30-11:00 - Break

Session #4: Cloud Processes, Microphysics and Feedbacks

Chairs: Monisha Natchiar and Florent Brient

11:00-11:15 - Positive High-Cloud Feedback in Storm-Resolving Model - Jakob Deutloff

11:15-11:30 - Climate Models Underestimate Global Decreases in High‐Cloud Amount With Warming - Sarah Wilson Kemsley

11:30-11:45 - An Analytical Model of the Lifecycle of Tropical Anvil Cloud Radiative Effects – Nicolas Lutsko

11:45-12:00 - Determining tropical cirrus origin and their radiative effects with the help of passive tracers - Blaž Gasparini

12:00-12:15 - More positive climate feedbacks with higher resolution in the km-scale ICON - Masaki Toda

12:15-12:30 - discussion

12:30-2:00 - Lunch

Session #5: Energy Imbalance

Chairs: Declan Finney and Nicolas Lutsko

2:00-2:15 - Ocean heat uptake along the South American coast is crucial for the efficiency of Southern Ocean teleconnections – Maria Rugenstein

2:15-2:30 - New insights on aerosol indirect forcing due to ship emissions from both bottom up and top down - Tianle Yuan

2:30-2:45 - Southern Ocean clear-sky brightening caused by wind-driven sea spray aerosol increase – Clare Singer

2:45-3:00 - discussion

3:00-3:30 - Break

Session #6: Energy Imbalance

Chairs: Jonah Bloch-Johnson and Mark Zelinka

3:30-3:45 - New Ocean Heat Uptake Estimate from Space and In-Situ Data Resolves Planetary Energy Budget variability and trend Since 2005, but Conflicts with Observation-Based Forcing and Radiative Response Estimates – Benoit Meyssignac

3:45-4:00 - Recent decadal changes in the Earth’s energy imbalance in satellite observations and climate model simulations – Tim Andrews

4:00-4:15 - Understanding the contribution of low clouds to the increasing Earth energy imbalance – Paulo Ceppi

4:15-4:30 - discussion

4:30-6:30 pm - Poster Session #2

7 pm Conference Dinner (OPT-IN, pay during registration)

DAY 3: Wednesday July 9

Session #7: Cloud Processes, Microphysics and Feedbacks

Chairs: George Tselioudis and Harry Mutton

9:00-9:15 – A new aerosol-aware parameterization for online representation of INP concentrations in climate models - Ross Herbert

9:15-9:30 – Characterizing the causal impact of aerosols on cloud liquid water path adjustments from observations using machine learning - Daniel Grosvenor

9:30-9:45 – Response of Arctic mixed-phase clouds to aerosol perturbations and warming - Britta Schäfer

9:45-10:00 – Impact of CO2 and SST increases on the tropical land-sea precipitation partitioning in global km-scale simulations - Marius Schulz

10:00-10:15 – Water Vapor Spectroscopy and Thermodynamics Constrain Earth's Tropopause Temperature – Brett A. McKim

10:15-10:30 - discussion

10:30-11:00 - Break

Session #8: Convection and Cloud Processes

Chairs: Jacqueline Nugent and Sandrine Bony

11:00-11:15 - Weakening deep convection in the tropics weakens lower tropospheric moisture convergence and causes a reduction of subtropical low clouds in an atmosphere-only GCM - Danny McCulloch

11:15-11:30 - CoMorph-B: a new convection scheme with different radiative feedbacks - Alison Stirling

11:30-11:45 - Stratocumulus-cumulus transitions in a mixed layer energy balance model - George Datseris

11:45-12:00 - Investigating the Upscale Growth of Mesoscale Cellular Structures in Stratocumulus Using Turbulent Cascades – Florent Brient

12:00-12:15 - Observations of convective development and anvil cloud optical depth during the Deep Convection Microphysics Experiment (DCMEX) – Declan Finney

12:15-12:30 - Discussion

12:30-2:00 - Lunch

Session #9: Convection and Organization

Chairs: Danny McCulloch and Alan Blyth

2:00-2:15 - Tropical cloud aggregation and climate feedbacks in global storm-resolving models - Emilie Fons

2:15-2:30 - Convective Organization in Mock-Walker Simulations in RCEMIP-II – Allison Wing

2:30-2:45 - Does mesoscale organisation modify the trade cumulus feedback? Lessons from idealised large-eddy simulations - Martin Janssens

2:45-3:00 - discussion

3:00-3:30 - Break

Session #10: Convection

Chairs: Deepak Gopalkrishnan and Allison Wing

3:30-3:45 - Linking changes in convective mass flux and large-scale tropical ascent under global warming – Andrew Williams

3:45-4:00 - A Synergistic Description of Upper Tropospheric Cloud Systems and Diabatic Heating: Towards Enhanced Process Understanding - Claudia J. Stubenrauch

4:00-4:15 - Monsoon precipitation biases in storm-resolving NextGEMS Earth System Models, Simona Bordini

4:15-4:30 - discussion

4:30-6:30 pm - Poster Session #3

Evening: CFMIP Committee Dinner (by invitation only)

DAY 4: Thursday July 10

Day 4 ends at 3 pm, leaving time for informal discussions in the late afternoon

Session #11: Circulation and Climate Dynamics

Chairs: Maria Rugenstein and Sarah Kang

9:00-9:15 - Spatial controls of Global and Regional Lower Tropospheric Inversion Strength - Senne Van Loon

9:15-9:30 - The dependence of relative humidity changes on the large-scale circulation response to surface warming: Insights from experiments varying the Coriolis parameter - Abisha Mary Gnanaraj

9:30-9:45 - Do Global Storm-Resolving Models Reveal Stronger Atmospheric Circulation Shifts Under Warming? - Dian Putrasahan

9:45-10:00 - Cloud-circulation coupling in convection-permitting simulations - Anna Mackie

10:00-10:15 - Observations show greater temperature and rainfall memory than simulations – Anna Lea Albright

10:15-10:30 - Discussion

10:30-11:00 - Break

Session #12: Circulation and Climate Dynamics

Chairs: Anna Mackie and Masahiro Watanabe

11:00-11:15 - Contrasting tropical Pacific response to global warming in two climate models: the role of winds, clouds, evaporative cooling, and the ocean thermostat – Alexeev Federov

11:15-11:30 - CO2 forcing over land cools the Equatorial and Eastern Pacific Ocean – Moritz Günther

11:30-11:45 - Shifting dynamics of the ITCZ: from widening to narrowing in response to abrupt 4xCO2 - Jiayu Zhang

11:45-12:00 - Increases in Southeast Pacific low-cloudiness during ENSO warm phases - Aakash Manapat

12:00-12:15 - The importance of stratocumulus clouds for projected warming patterns and circulation changes - Philipp Breul

12:15-12:30 - Discussion

12:30-2:00 - Lunch

Session #13: Final Discussions, Early Career Award, Next CFMIP

Chairs: Jen Kay and Hugo Lambert

2:00-2:15 - CFMIP Plans

2:15-2:30 - CloudSense Plans

2:30-3:00 - Final Discussion, Awards, Next CFMIP

3:00 pm meeting ends