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Authors: J. Zhao 1 ; P. P. Zhao 2 ; S. C. Wang 1 and J. P. Wu 1

Affiliations: 1 College of Meteorology and Oceanography and National University of Defense Technology, China ; 2 Unit 95026 of People’s Liberation Army, China

Keyword(s): non-orographic gravity wave;parameterization scheme;numerical weather predition

Abstract: The atmospheric motions of the upper troposphere and the lower stratosphere are affected by the non-orographic gravity waves. In this paper, two parameterization schemes of non-orographic gravity waves, the non-hydrostatic and rotational scheme (WM96 scheme) and the hydrostatic and non-rotational scheme (S02 scheme), are introduced into the global numerical weather prediction model. Study on the influence of the two schemes on the prediction of the stratospheric wind field is carried out in case of the sudden stratospheric warming event in January 2013. The experimental results show that both the WM96 scheme and the S02 scheme can accurately capture the change of the wind fields during the sudden stratospheric warming process. Compared to the Rayleigh friction scheme, the errors of the wind fields 24 hours and 72 hours forecast are significantly reduced when the WM96 scheme or the S02 scheme is used; the prediction of WM96 scheme is closer to the analytic field in some areas of the w ind field than the S02 scheme. (More)

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Paper citation in several formats:
Zhao, J.; Zhao, P.; Wang, S. and Wu, J. (2018). Study on the Influence of Non-Orographic Gravity Wave Parameterization Scheme on Prediction in Stratospheric Wind Field. In Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE; ISBN 978-989-758-344-5, SciTePress, pages 161-169. DOI: 10.5220/0007558401610169

@conference{iwemse18,
author={J. Zhao. and P. P. Zhao. and S. C. Wang. and J. P. Wu.},
title={Study on the Influence of Non-Orographic Gravity Wave Parameterization Scheme on Prediction in Stratospheric Wind Field},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE},
year={2018},
pages={161-169},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007558401610169},
isbn={978-989-758-344-5},
}

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE
TI - Study on the Influence of Non-Orographic Gravity Wave Parameterization Scheme on Prediction in Stratospheric Wind Field
SN - 978-989-758-344-5
AU - Zhao, J.
AU - Zhao, P.
AU - Wang, S.
AU - Wu, J.
PY - 2018
SP - 161
EP - 169
DO - 10.5220/0007558401610169
PB - SciTePress