Study on the Influence of Non-Orographic Gravity Wave Parameterization Scheme on Prediction in Stratospheric Wind Field

J. Zhao, P. P. Zhao, S. C. Wang, J. P. Wu

2018

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 wind field than the S02 scheme.

Paper Citation

in Harvard Style

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 - Volume 1: IWEMSE, ISBN 978-989-758-344-5, pages 161-169. DOI: 10.5220/0007558401610169

in Bibtex Style

@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 - Volume 1: IWEMSE,},
year={2018},
pages={161-169},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007558401610169},
isbn={978-989-758-344-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: 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