Cited by 76Tropical and Extratropical Cyclones ResearchClimate variability and modelsMeteorological Phenomena and Simulations

Tropical cyclone activity in the high-resolution community earth system model and the impact of ocean coupling.

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Li, Hui, Sriver, Ryan L.·2018·Journal of Advances in Modeling Earth Systems

Abstract

High‐resolution Atmosphere General Circulation Models (AGCMs) are capable of directly simulating realistic tropical cyclone (TC) statistics, providing a promising approach for TC‐climate studies. Active air‐sea coupling in a coupled model framework is essential to capturing TC‐ocean interactions, which can influence TC‐climate connections on interannual to decadal time scales. Here we investigate how the choices of ocean coupling can affect the directly simulated TCs using high‐resolution configurations of the Community Earth System Model (CESM). We performed a suite of high‐resolution, multidecadal, global‐scale CESM simulations in which the atmosphere (∼0.25° grid spacing) is configured with three different levels of ocean coupling: prescribed climatological sea surface temperature (SST) (ATM), mixed layer ocean (SLAB), and dynamic ocean (CPL). We find that different levels of ocean coupling can influence simulated TC frequency, geographical distributions, and storm intensity. ATM simulates more storms and higher overall storm intensity than the coupled simulations. It also simulates higher TC track density over the eastern Pacific and the North Atlantic, while TC tracks are relatively sparse within CPL and SLAB for these regions. Storm intensification and the maximum wind speed are sensitive to the representations of local surface flux feedbacks in different coupling configurations. Key differences in storm number and distribution can be attributed to variations in the modeled large‐scale climate mean state and variability that arise from the combined effect of intrinsic model biases and air‐sea interactions. Results help to improve our understanding about the representation of TCs in high‐resolution coupled Earth system models, with important implications for TC‐climate applications.

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  • Hurricane-permitting global climate model simulations tend to overpredict hurricane activity if oceanic feedbacks are neglected.

    “Hurricane-permitting global climate model simulations are becoming increasingly feasible (Patricola et al., 2014;Wehner et al., 2014;Walsh et al., 2015;Haarsma et al., 2016), but tend to overpredict hurricane activity if oceanic feedbacks are neglected (Zarzycki, 2016;Li and Sriver, 2018).”

    From The tropical atlantic observing system (2019) · cites this paper as Li and Sriver, 2018

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  1. Ferreira, R. N., & Schubert, W. H. (1997). Barotropic aspects of ITCZ breakdown. Journal of Atmospheric Science, 54(2), 261-285.
  2. Maloney, E. D., & Hartmann, D. L. (2001). The Madden-Julian oscillation, barotropic dynamics, and North Pacific tropical cyclone formation. Part I: Observations. Journal of Atmospheric Science, 58, 2545-2571.
  3. Molinari, J., & Vollaro, D. (2000). Planetary-and synoptic-scale influences on eastern Pacific tropical cyclogenesis. Monthly Weather Review, 128(9), 3296-3307.
  4. Schade, L. R., & Emanuel, K. A. (1999). The ocean's effect on the intensity of tropical cyclones: Results from a simple coupled atmosphere- ocean model. Journal of Atmospheric Science, 56(4), 642-651.

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Authors
Li, H., & Sriver, R. L.
Affiliations
University of Illinois Urbana-Champaign (US)
Corresponding author
Li, Hui
Venue
Journal of Advances in Modeling Earth Systems
Published
2018-01
Volume
10
Issue
1
Pages
165-186
ISSN
1942-2466 (ISSN-L)
OpenAlex
W2783274775
Cited by
75
References
69
Citations by year
2026: 9 · 2025: 7 · 2024: 8 · 2023: 7 · 2022: 4 · 2021: 19 · 2020: 10 · 2019: 6 · 2018: 5
FWCI
4.87
Type
journal article
Language
en
Open access
Locations
  • Journal of Advances in Modeling Earth Systems (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Science Foundation (OCI‐0725070, ACI‐1238993)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Tropical and Extratropical Cyclones Research
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
Keywords
tropical cyclones, ocean coupling, Community Earth System Model, high-resolution climate modeling, ocean-atmosphere interaction, sea surface temperature, ocean mixed layer, tropical cyclone frequency, storm intensity, tropical cyclone tracks, eastern Pacific, North Atlantic

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