气候变化领域集成服务门户(CCPortal): Characterizing Tropical Cyclones in the Energy Exascale Earth System Model Version 1

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DOI	10.1029/2019MS002024
	Characterizing Tropical Cyclones in the Energy Exascale Earth System Model Version 1
	Balaguru K.; Leung L.R.; Van Roekel L.P.; Golaz J.-C.; Ullrich P.A.; Caldwell P.M.; Hagos S.M.; Harrop B.E.; Mametjanov A.
发表日期	2020
ISSN	19422466
卷号	12 期号:8
英文摘要	In this study, we analyze the realism with which tropical cyclones (TCs) are simulated in the fully coupled low- and high-resolution Energy Exascale Earth System Model (E3SM) version 1, with a focus on the latter. Compared to the low-resolution (grid spacing of ∼1°), the representation of TCs improves considerably in the high-resolution configuration (grid spacing of ∼0.25°). Significant improvements are found in the global TC frequency, TC lifetime maximum intensities, and the relative distribution of TCs among the different basins. However, at both resolutions, spurious TC activity is found in some basins, notably in the subtropical regions. Contrasting the simulated large-scale TC environment with observations reveals that the model environment is unrealistically conducive for TC development in those regions. Further analysis indicates that these biases are likely related to those in thermodynamic potential intensity, caused by systematic SST biases, and vertical wind shear in the coupled model. TC-ocean interaction is also examined in the high-resolution configuration of the model. The salient features of the ocean's response to TC-induced mixing and the ocean's impact on TC intensification are well-reproduced. Finally, an evaluation of the influence of El Niño Southern Oscillation (ENSO) on TCs in the high-resolution configuration of the model reveals that the ENSO-TC relationship in the model has the right sign and is significant for the North Atlantic and Northwest Pacific, albeit weaker than in observations. In summary, the high-resolution configuration of the E3SM model simulates TC activity reasonably and hence could be a useful tool for TC-related research. ©2020. The Authors.
英文关键词	climatology; global climate models; tropical cyclones
语种	英语
scopus关键词	Atmospheric pressure; Climatology; Hurricanes; Storms; Tropics; Coupled modeling; Earth system model; Maximum intensities; Modeling environments; Southern oscillation; Subtropical regions; Thermodynamic potentials; Vertical wind shear; Oceanography; El Nino-Southern Oscillation; frequency analysis; sea surface temperature; subtropical region; thermodynamics; tropical cyclone; turbulent mixing; wind shear; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (Northwest)
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156662
作者单位	Pacific Northwest National Laboratory, Richland, WA, United States; Los Alamos National Laboratory, Los Alamos, NM, United States; Lawrence Livermore National Laboratory, Los Alamos, NM, United States; Department of Land, Air, and Water Resources, University of California-Davis, Davis, CA, United States; Argonne National Laboratory, Lemont, IL, United States
推荐引用方式 GB/T 7714	Balaguru K.,Leung L.R.,Van Roekel L.P.,et al. Characterizing Tropical Cyclones in the Energy Exascale Earth System Model Version 1[J],2020,12(8).
APA	Balaguru K..,Leung L.R..,Van Roekel L.P..,Golaz J.-C..,Ullrich P.A..,...&Mametjanov A..(2020).Characterizing Tropical Cyclones in the Energy Exascale Earth System Model Version 1.Journal of Advances in Modeling Earth Systems,12(8).
MLA	Balaguru K.,et al."Characterizing Tropical Cyclones in the Energy Exascale Earth System Model Version 1".Journal of Advances in Modeling Earth Systems 12.8(2020).