A097-01
An Unprecedented Set of High-Resolution Climate Simulations from the International Laboratory for High-Resolution Earth System Prediction (iHESP)
Thursday, 10 December 2020: 05:30
Virtual
Ping Chang1,2, Shaoqing Zhang2,3, Gokhan Danabasoglu2,4, Stephen G Yeager2,4, Haohuan Fu5,6, Hong Wang2,3, Frederic S Castruccio2,4, Yuhu Chen7, Jim Edwards2,4, Dan Fu8,9, Yinglia Jia10,11, Lucas Laurindo11,12, Xue LIU13,14, Nan A Rosenbloom2,4, Justin Small2,4, Gaopeng Xu8,11, Yunhui Zeng15, Qiuying Zhang11,16, Julio T Bacmeister2,4, David A Bailey4,14, Xiaohui Duan17, Alice K DuVivier4,18, Dapeng Li13,14, Yuxuan Li17, Richard B Neale19, Achim Stössel13,14, Li Wang15, Yuan Zhuang15, Allison H Baker14,20, Susan C Bates4, John Dennis4, Xiliang Diao1, Bolan Gan3, Abishek Gopal8,11, Dongning Jia7, Zhao Jing3,11, Xiaohui Ma3,11, Ramalingam Saravanan14,21, Gary Strand4, Jian Tao11,22, Haiyuan Yang11,23, Xiaoqi Wang14,24, Zhiqiang Wei7 and Lixin Wu3,7, (1)Texas A&M University, Department of Oceanography, College Station, TX, United States, (2)International Laboratory for High-Resolution Earth System Prediction (iHESP), College Station, TX, United States, (3)Ocean University of China, Qingdao, China, (4)National Center for Atmospheric Research, Boulder, CO, United States, (5)Tsinghua University, Wuxi National Supercomputer Center, Beijing, China, (6)International Laboratory for High-Resolution Earth System Prediction, College Station, TX, United States, (7)Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, (8)Texas A&M University, Oceanography, College Station, United States, (9)International Laboratory for High-Resolution Earth System Prediction (iHESP), College Station, United States, (10)Ocean University of China, Qingdao, United States, (11)International Laboratory for High-Resolution Earth System Model and Prediction (iHESP), College Station, United States, (12)National Center for Atmospheric Research, Boulder, United States, (13)Texas A&M University College Station, College Station, TX, United States, (14)International Laboratory for High-Resolution Earth System Model and Prediction (iHESP), College Station, TX, United States, (15)Jinan National Supercomputing Center, Jinan, China, (16)Texas A&M University, College Station, United States, (17)Tsinghua University, Wuxi National Supercomputing Center, Beijing, China, (18)International Laboratory for High-Resolution Earth System Model and Prediction (iHESP), College Station, CO, United States, (19)NCAR, Boulder, CO, United States, (20)National Center for Atmospheric Research, Boulder, TX, United States, (21)Texas A & M University College Station, College Station, TX, United States, (22)Texas A&M University, Texas A&M Engineering Experiment Station, College Station, United States, (23)Physical Oceanography Laboratory, Ocean University of China, Qingdao, China, (24)Texas A&M University, Oceanography, College Station, TX, United States
Abstract:
We present an unprecedented set of high-resolution climate simulations carried out at the International Laboratory for High-Resolution Earth System Prediction (iHESP) – a collaboration among the Qingdao National Laboratory for Marine Science and Technology, Texas A&M University, and the National Center for Atmospheric Research. These simulations are the first set of high-resolution climate simulations by iHESP, consisting of a 500-year pre-industrial control simulation and a 250-year historical and future climate simulation from 1850 to 2100. A high-resolution configuration of the Community Earth System Model version 1.3 (CESM1.3) is used for the simulations with a nominal horizontal resolution of 0.25° for the atmosphere and land models and 0.1° for the ocean and sea-ice models. At these resolutions, the model permits tropical cyclones and ocean mesoscale eddies. The simulations were conducted on the Sunway TaihuLight High-Performance Computer. An overview of the results from these simulations is provided with a focus on model drift, mean climate, internal modes of variability, representation of the historical and future climates and extreme events. Comparisons are made to solutions from an identical set of simulations using the standard resolution (nominal 1°) CESM1.3 and to available observations for the historical period. An emerging prominent feature of the high-resolution pre-industrial simulation is the intermittent occurrence of polynyasin the Weddell Sea and its interaction with an Interdecadal Pacific Oscillation. Overall, high-resolution simulations show significant improvements in representing global mean temperature changes, seasonal cycle of sea-surface temperature and mixed layer depth, extreme events and in relationships between extreme events and climate modes.
