ISSN 1006-8775CN 44-1409/P
Volume 25 Issue 1
Dec.  2018
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THE IMPACT OF HORIZONTAL RESOLUTION ON THE INTENSITY ANDMICROSTRUCTURE OF SUPER TYPHOON USAGI


DOI: 10.16555/j.1006-8775.2019.01.003
  • Revised Date: 14 June, 2018
  • Typhoon Usagi (1319) was simulated by using the Advanced Weather Research and Forecasting numerical model (WRF) with different horizontal resolution to understand the impact of horizontal resolution on the intensity and characteristics of typhoon’s microstructures (including dynamic and microphysical structure). The simulated results show that the improvement of horizontal resolution from 5 km to 1 km has little impact on the track which is comparable to real results, but has a significant impact on the intensity and microstructures, and especially, the impact on wind speed at 10 m height, the vertical movement and precipitation intensity is the greatest. When the resolution is increased to 1 km, the intensity and characteristics of typhoon’s microstructures can be simulated better. In lower resolution simulations, some structural characteristics, including more asymmetrical and more outward tilted eyewall, and less water vapor flux on sea surface, work together to weaken typhoon intensity.
  • Cited by

    Periodical cited type(3)

    1. Fu, H., Wang, Y., Xie, Y. et al. Super Typhoons Simulation: A Comparison of WRF and Empirical Parameterized Models for High Wind Speeds. Applied Sciences (Switzerland), 2025, 15(2): 776. DOI:10.3390/app15020776
    2. Zhong, Q.-J., Li, J.-P., Li, S.-W. et al. Influence of Sea Surface Temperature on the Predictability of Idealized Tropical Cyclone Intensity. Journal of Tropical Meteorology, 2021, 27(4): 355-367. DOI:10.46267/j.1006-8775.2021.031
    3. Zhao, Y.-J., Li, J.-N., Li, F.-Z. et al. Impacts of horizontal and vertical resolutions on the microphysical structure and boundary layer fluxes of typhoon hato (2017). Journal of Tropical Meteorology, 2021, 27(1): 10-23. DOI:10.46267/j.1006-8775.2021.002

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Get Citation

WEN Ying-fang, LIU Yu-di, TAN Wei-cai, et al. THE IMPACT OF HORIZONTAL RESOLUTION ON THE INTENSITY ANDMICROSTRUCTURE OF SUPER TYPHOON USAGI[J]. Journal of Tropical Meteorology, 2019, 25(1): 24-33. DOI: 10.16555/j.1006-8775.2019.01.003
WEN Ying-fang, LIU Yu-di, TAN Wei-cai, et al. THE IMPACT OF HORIZONTAL RESOLUTION ON THE INTENSITY ANDMICROSTRUCTURE OF SUPER TYPHOON USAGI[J]. Journal of Tropical Meteorology, 2019, 25(1): 24-33. DOI: 10.16555/j.1006-8775.2019.01.003
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Manuscript History

  • Manuscript revised: 14 June, 2018

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