A040
Causes and consequences of polar amplification
Session ID#: 247312
Session Description:
The causes of polar amplification are complex and likely arise from coupled interactions among the cryosphere, atmosphere, ocean, and land. Polar amplification also impacts regions beyond the poles and has significant implications for the weather and climate globally. This session aims to synthesize current understanding of the causes and consequences of polar amplification. Contributions are invited that explore: (1) the roles of atmospheric, oceanic and land processes and local feedback mechanisms in driving polar sea ice change and amplification; and (2) the effects of sea ice loss and polar amplification on lower-latitude weather and climate, along with the underlying mechanisms. Studies based on observational/theoretical analyses, novel methodologies (including machine learning and data-driven approaches), and numerical simulations are encouraged. This includes experiments from the Polar Amplification MIP and other idealized or comprehensive model frameworks. Insights into the next phase of Polar Amplification MIP and other relevant MIPs are highly welcomed.
Co-Sponsor(s):
Index Terms:
1621 Cryospheric change [GLOBAL CHANGE]
1626 Global climate models [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3319 General circulation [ATMOSPHERIC PROCESSES]
Primary Convener: Lantao Sun, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, US
Conveners: Yutian Wu, New York University, New York, United States, Qinghua Ding, University of California, Santa Barbara, Geography and Earth Research Institute, Santa Barbara, United States and Yu-Chiao Liang, National Taiwan University, Department of Atmospheric Sciences, Taipei, Taiwan
Student/Early Career Convener: Pengfei Zhang, Pennsylvania State University, University Park, United States
The Role of Internal Variability in Observed Arctic Spring Warming and the Underlying Coupling Mechanisms (1901181)
Skylar Gale1, Qiang Fu2, Aodhan John Sweeney1, Hailong Wang3 and Muyin Wang2, (1)University of Washington, Atmospheric and Climate Science, Seattle, United States, (2)University of Washington, Seattle, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States
Minimal Arctic sea ice loss in the last 20 years, consistent with internal climate variability (1901554)
Mark England, University of California Irvine, Irvine, CA, United States, Prof. Lorenzo M Polvani, PhD, Columbia University, Department of Applied Physics and Applied Mathematics, New York, United States, James Screen, University of Exeter, Exeter, United Kingdom and Chun Yin Chan, University of Exeter, Exeter, EX4, United Kingdom
Quantifying Anthropogenic Aerosol Impacts on Arctic Sea Ice by Separating Thermodynamic and Dynamic Contributions (1910355)
Yungi Hong, GIST Gwangju Institute of Science and Technology, School of Earth Sciences and Environmental Engineering, Gwangju, Korea, Republic of (South), Shih-Yu (Simon) Wang, Kasetsart University, Bangkok, Thailand and Jin-Ho Yoon, Gwangju Institute of Science and Technology, Department of Environment and Energy Engineering, Gwangju, South Korea
Causes and Consequences of Polar Amplification Elucidated by the Polar Amplification Model Intercomparison Project (PAMIP) (Invited) (1920257)
Clara Deser1, James Screen2, Melissa Gervais3, Paul J Kushner4, Yu-Chiao Liang5, Nicole Feldl6, Regan Mudhar7, Mark England2, Russell Blackport2 and Doug M Smith8, (1)National Center for Atmospheric Research, Climate and Global Dynamics Division, Boulder, CO, United States, (2)University of Exeter, Exeter, United Kingdom, (3)Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, United States, (4)University of Toronto, Physics, Toronto, ON, Canada, (5)National Taiwan University, Department of Atmospheric Sciences, Taipei, Taiwan, (6)University of California Santa Cruz, Santa Cruz, CA, United States, (7)University of Exeter, Exeter, EX4, United Kingdom, (8)Met Office Hadley Centre, Exeter, United Kingdom
Augmenting arctic warming reduces North Atlantic jet waviness in a coupled climate model (1926899)
Gudrun Magnusdottir, University of California Irvine, Earth System Science, Irvine, CA, United States, Julian Arnheim, University of California Irvine, Earth System Science, Irvine, United States and Yannick Peings, University California Irvine, Earth System Science, Irvine, United States
Exploring the Atmospheric responses to Arctic sea-ice loss in Google’s NeuralGCM (1933367)
Yu-Chiao Liang, National Taiwan University, Department of Atmospheric Sciences, Taipei, Taiwan, Nicholas Lutsko, UCSD, Scripps Institution of Oceanography, La Jolla, United States and Young-Oh Kwon, Woods Hole Oceanographic Institution, Woods Hole, United States
Summer Arctic warming and potential implication for European Heatwaves (1937299)
El Noh, Kongju National University, Department of Atmospheric Science, Gongju, Korea, Republic of (South), Joowan Kim, Kongju National University, Department of Atmospheric Science, Gongju, South Korea, Seok-Woo Son, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, Yu Kosaka, Scripps Institute of Oceanography, La Jolla, United States, Sang-Wook Yeh, Hanyang University, ERICA, Department of Marine Sciences and Convergent Technology, Ansan, South Korea and Sang-Yoon Jun, Korea Polar Research Institute, Incheon, South Korea
Using energetic frameworks to quantify and understand artificial heating in coupled sea ice loss experiments (1945109)
Joonsuk Kang, The University of Chicago, Department of the Geophysical Sciences, Chicago, United States, Tiffany Shaw, The University of Chicago, Chicago, United States and Lantao Sun, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States
Dominant Roles of Sea Ice Loss and Atmospheric Dynamics in Explaining the Historical Arctic Winter Warming (1973375)
Hailong Wang1, Yiling Huo1, Rudong Zhang1, Aodhan John Sweeney2, Qiang Fu3, Philip J Rasch3, Yufei Zou4, Muyin Wang3 and Weiming Ma5, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)University of Washington, Atmospheric and Climate Science, Seattle, United States, (3)University of Washington, Seattle, United States, (4)University of Science and Technology of China, Hefei, China, (5)Pacific Northwest National Laboratory, Richland, United States
Increased Model Resolution Amplifies Arctic Precipitation and Atmospheric Circulation Response to Sea-Ice Loss (1973551)
Clara Deser, National Center for Atmospheric Research, Climate and Global Dynamics Division, Boulder, United States, Lantao Sun, Colorado State University, Fort Collins, United States, Adam R Herrington, NSF National Center for Atmospheric Research, CGD, Boulder, United States, Melissa Gervais, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, United States and Isla Simpson, National Center for Atmospheric Research, CGD Laboratory, Boulder, United States
Arctic Sea-Ice Loss, Long-Term Weakening of the Stratospheric Polar Vortex, and the Observed Strengthening of the QBO-MJO Connection (1975828)
Lon L. Hood, University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States and Charles Hoopes, University of Arizona, Tucson, AZ, United States
An analytic theory for the degree of Arctic Amplification (1978065)
Wenyu Zhou, Pacific Northwest National Laboratory, Richland, WA, United States, Ruby Leung, Pacific Northwest National Laboratory, Richland, United States, Shang-Ping Xie, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States and Jian Lu, Ocean University of China, Qingdao, China
Assessing the Roles of Sea Ice Concentration Loss and Thinning in Arctic Temperature Amplification (1982791)
Lantao Sun, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, US, Anna Trujillo, University of Colorado-Boulder, Boulder, United States, James W Hurrell, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States and Daniel Martin Hueholt, Colorado College, Environmental Studies & Science, Colorado Springs, United States
Key Role of the Water Vapor Feedback for Arctic-Amplified Warming in Feedback Locking Experiments (1984887)
Lily Hahn, Scripps Institution of Oceanography, La Jolla, CA, United States, Kelly Frank, Scripps Institution of Oceanography, La Jolla, United States, Nicholas Lutsko, UCSD, Scripps Institution of Oceanography, La Jolla, United States, Ian Eisenman, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States and Thorsten Mauritsen, Stockholm University, Department of Meteorology, Stockholm, Sweden
