A32B:
Climate Sensitivity and Feedbacks: Advances and New Paradigms I

Submit an Abstract to this Session



Session ID#: 31025

Session Description:
A major goal of current climate research is to reduce uncertainty in metrics of large-scale forced climate responses, such as the Equilibrium Climate Sensitivity of temperature (ECS). The ECS is estimated at 1.5—4.5 K, a range largely due to clouds and other moist processes. These processes are deeply intertwined and are linked to changes in societally important factors such as precipitation. This session explores recent advances in understanding large-scale climate response to climate forcings. We welcome submissions on theory, observations and modelling studies of climate feedbacks, climate sensitivity, and climate responses of precipitation and large-scale dynamics, especially those exploring novel evaluation techniques, and new ways of thinking about processes that govern climate's response to external forcing.
Primary Convener:  Andrew E Dessler, Texas A&M Univ, College Station, TX, United States
Conveners:  Chen Zhou, Lawrence Livermore National Laboratory, Livermore, CA, United States, Mark Richardson, University of California Los Angeles, Los Angeles, United States and Maria Zita Hakuba, ETH Zurich, Zurich, Switzerland
Chairs:  Mark Richardson, University of California Los Angeles, Los Angeles, United States and Maria Zita Hakuba, Jet Propulsion Laboratory, Pasadena, United States
OSPA Liaison:  Maria Zita Hakuba, Jet Propulsion Laboratory, Pasadena, United States

Cross-Listed:
  • GC - Global Environmental Change
Index Terms:

3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3310 Clouds and cloud feedbacks [ATMOSPHERIC PROCESSES]
3337 Global climate models [ATMOSPHERIC PROCESSES]
3354 Precipitation [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Mechanisms of fast atmospheric energetic equilibration following radiative forcing by Carbon Dioxide (254517)
Stephan Fueglistaler and Tra Dinh, Princeton University, Princeton, United States
Mean Precipitation Change From Invariant Radiative Cooling (227569)
Nadir Jeevanjee, Princeton University, Princeton, United States and David M Romps, University of California Berkeley, Berkeley, CA, United States
Climate Sensitivity and Natural Variability: Theoretical Frameworks and the Bounding of Radiative Feedback Estimates (255400)
Hansi Alice Singh1, L. Ruby Leung2, Philip J Rasch3, Jian Lu1 and Oluwayemi A. Garuba1, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)PNNL / Climate Physics, Richland, WA, United States, (3)University of Washington, Seattle, United States
Estimating radiative feedbacks from stochastic fluctuations in surface temperature and energy imbalance (282961)
Cristian Proistosescu, University of Illinois at Urbana Champaign, Department of Climate, Meteorology & Atmospheric Sciences, Urbana, United States, Aaron Donohoe, Applied Physics Laboratory University of Washington, Seattle, WA, United States, Kyle Armour, University of Washington, Deptartment of Atmospheric and Climate Science, Seattle, United States, Gerard Roe, University of Washington, Seattle, United States, Malte F Stuecker, IBS Center for Climate Physics (ICCP), Busan, South Korea and Cecilia M Bitz, University of Washington, Seattle, Seattle, WA, United States
Externally forced patterns of multidecadal cloud change in observations and models (Invited) (259628)
Joel R Norris1, Robert Allen2, Amato T Evan3, Mark D Zelinka4, Christopher O'Dell5 and Stephen A Klein4, (1)Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States, (2)University of California Riverside, Riverside, CA, United States, (3)Scripps Institute of Oceanography, La Jolla, CA, United States, (4)Lawrence Livermore National Laboratory, Livermore, United States, (5)Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States
SST Patterns, Atmospheric Variability, and Inferred Sensitivities in the CMIP5 Model Archive (279935)
Kate Marvel, NASA Goddard Institute for Space Studies, New York, NY, United States, Robert Pincus, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Gavin A Schmidt, NASA Goddard Institute for Space Studies, New York, United States
Commensurate comparisons of models with energy budget observations reveal consistent climate sensitivities (Invited) (280055)
Kyle Armour, University of Washington, Deptartment of Atmospheric and Climate Science, Seattle, United States

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