A51C:
Climate Sensitivity and Feedbacks: Advances and New Paradigms II Posters


Session ID#: 7706

Session Description:
An abiding goal of climate science has been to reduce the uncertainty in climate sensitivity - a metric commonly used to quantify the global equilibrium climate response to forcing. However, estimates remain at 2-4.5 K, a range largely due to uncertainties associated with clouds and other moist processes. In light of new observations, this session will revisit our constraints on transient and equilibrium climate sensitivity and re-evaluate the utility of the traditional forcing-feedback-sensitivity paradigm. We welcome submissions on theory, observations, and modeling studies of feedbacks and climate sensitivity, especially those exploring novel evaluation techniques, and new ways of thinking about processes that govern climate's response to external forcing.
Primary Convener:  Alexandra K Jonko, Los Alamos National Laboratory, Los Alamos, NM, United States
Conveners:  Mark D Zelinka, Lawrence Livermore National Laboratory, Livermore, United States, Brian H Kahn, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and Andrew E Dessler, Texas A&M Univ, College Station, TX, United States
Chairs:  Mark D Zelinka, Lawrence Livermore National Laboratory, Livermore, United States and Brian H Kahn, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
OSPA Liaison:  Alexandra K Jonko, Los Alamos National Laboratory, Los Alamos, NM, United States

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

1610 Atmosphere [GLOBAL CHANGE]
1626 Global climate models [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3310 Clouds and cloud feedbacks [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Low cloud cover trend during the last three decades (74284)
Chen Zhou1, Mark D Zelinka2 and Stephen A Klein1, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, United States
Parameteric dependence of climate sensitivity and cloud response in CAM5 with a higher-order closure scheme (69444)
Minghuai Wang1, Zhun Guo2, Yun Qian3, Tianjun Zhou2 and Steven John Ghan3, (1)Nanjing University, Nanjing, China, (2)Institute of Atmospheric Physics, Beijing, China, (3)Pacific Northwest National Laboratory, Richland, WA, United States
Thirty-Five Year Record of Shortwave TOA radiative cloud forcing from SBUV Measurements (70236)
Jay R Herman1, Clark j Weaver2 and Gordon J Labow2, (1)University of Maryland Baltimore County, Baltimore, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Don’t Count on It: Reasons to Doubt a Strong Negative Cloud Feedback (70314)
Mark D Zelinka1, Christopher Terai1, Chen Zhou2 and Stephen A Klein2, (1)Lawrence Livermore National Laboratory, Livermore, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States
A High-Latitude Winter Continental Low Cloud Feedback Suppresses Arctic Air Formation in Warmer Climates (81017)
Timothy Cronin, MIT, Cambridge, MA, United States, Eli Tziperman, Harvard University, Cambridge, MA, USA., Cambridge, United States and Harrison Li, Harvard University, Cambridge, MA, United States
Suppression of Arctic Air Formation by Cloud Radiative Effects in a Two-Dimensional Cloud Resolving Model (82035)
Harrison Li, Harvard University, Cambridge, MA, United States and Timothy Cronin, MIT, Cambridge, MA, United States
Using short-term climate variability to infer equilibrium climate sensitivity (67393)
Andrew E Dessler, Texas A&M Univ, College Station, TX, United States and Chen Zhou, Lawrence Livermore National Laboratory, Livermore, CA, United States
Period dependent short-term shortwave and longwave feedback parameters derived from CERES observation (79541)
Seiji Kato, NASA Langley Research Ctr, Hampton, United States and Norman G Loeb, NASA Langley Research Center, Hampton, VA, United States
The spectral details of observed and simulated short-term water vapor feedbacks of El Niño-Southern Oscillation (62880)
Fang Pan1, Xianglei Huang1 and Xiuhong Chen2, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)University of Michigan, Department of Climate and Space Sciences and Engineering, Ann Arbor, United States
Re-visiting our understanding of surface temperature response to climate forcing (72108)
Richard Davy, Linling Chen and Stephen Outten, Nansen Environmental and Remote Sensing Center, Bergen, Norway
Temperature-Dependent Feedbacks and Large Increases in Climate Sensitivity (64474)
Jonah Bloch-Johnson, National Centre for Atmospheric Research, University of Reading, Reading, United Kingdom, Dorian S Abbot, University of Chicago, Geophysical Sciences, Chicago, IL, United States and Raymond Pierrehumbert, University of Oxford, Oxford, United Kingdom
Climate sensitivity of global terrestrial ecosystems' subdaily carbon, water, and energy dynamics. (75763)
Rong Yu, University of Nebraska, School of Natural Resources, Lincoln, NE, United States, Benjamin L Ruddell, Arizona State University, Fulton Schools of Engineering, Tempe, AZ, United States, Daniel L Childers, Arizona State University, School of Sustainability, Tempe, AZ, United States and Minseok Kang, Seoul National University, National Center for AgroMeteorology, Seoul, Korea, Republic of (South)
The Role of SST and Large-Scale Dynamical Motions on the Onset and Shutdown of the Super Greenhouse Effect (82305)
Travis Allen O'Brien, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Karthik Kashinath, NVIDIA Corporation, HPC*AI, Santa Clara, United States and William Drew Collins, Lawrence Berkeley National Laboratory, Earth and Environmental Science, Berkeley, CA, United States
Climate Dynamics and Global Change: Temperature, Precipitation, and Circulation in GFDL Aqua-Planet Model (63083)
Tra Dinh, Princeton University, Princeton, NJ, United States and Stephan Fueglistaler, Princeton University, Princeton, United States
Fast Climate Cystem Responses to Different Forcing Agents Based on CMIP5 Atmospheric Models (68996)
Di Tian1, Wenjie Dong2, Daoyi Gong3, Yan Guo3, Shili Yang1 and Scientific Team of Climate Change, (1)Beijing Normal University, Beijing, China, (2)BNU Beijing Normal University, Beijing, China, (3)Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology (ESPRE), Beijing, China
Physical Mechanisms of Tropical Climate Feedbacks Revealed by Temperature and Moisture Trends (72150)
Angus James Ferraro, University of Exeter, Exeter, United Kingdom, Francis H Lambert, University of Exeter, Department of Mathematics and Statistics, Exeter, United Kingdom, Matthew Collins, University of Exeter, College of Engineering, Mathematics and Physical Sciences, Exeter, United Kingdom and Georgina Miles, Rutherford Appleton Laboratory, Didcot, United Kingdom
Geographic variation of surface energy partitioning in the climatic mean predicted from a thermodynamic limit (79306)
Chirag Dhara, Max Planck Institute for Biogeochemistry, Biospheric Theory and Modelling Group, Jena, Germany
Indicators of Climate Change in the Middle Atmosphere using a New Climate Feedback-Response Analysis Method (62850)
William H Swartz, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, Xun Zhu, Johns Hopkins Univ, Laurel, MD, United States, Jeng-Hwa Yee, Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States and Valentina Aquila, Johns Hopkins University, Earth and Planetary Science, Baltimore, MD, United States
Ozone Radiative Feedback in Global Warming Simulations with CO2 and non-CO2 Forcings (71759)
Michael Ponater, Vanessa Rieger and Simone Dietmüller, German Aerospace Center (DLR) Oberpfaffenhofen, Wessling, Germany
Inhomogeneous radiative forcing of homogeneous greenhouse gas (73730)
Yi Huang1, Xiaoxiao Tan2 and Yan Xia2, (1)McGill University, Atmospheric and Oceanic Sciences, Montreal, QC, Canada, (2)McGill University, Department of Atmospheric and Oceanic Sciences, Montreal, QC, Canada
A kernel method for calculating effective radiative forcing in transient climate simulations (73933)
Erik Joseph Lester Larson and Robert W Portmann, NOAA Boulder, Boulder, CO, United States
A Study of Physical-Chemical Effects on the Atmosphere of the Southern Hemisphere During Forbush Decrease Periods  (63636)
Williamary Portugal, INPE National Institute for Space Research, Geophysics - CEAII, Sao Jose dos Campos, Brazil, Alessandra Abe Pacini, University of Vale do Paraíba, Physics and Astronomy Laboratory, Sao Jose dos Campos, Brazil, Ezequiel Echer, INPE National Institute for Space Research, Sao Jose dos Campos, Brazil and Mariza Pereira de Souza Echer, INPE National Institute for Space Research, Geophysics, Sao Jose dos Campos, Brazil

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