Articles | Volume 18, issue 16
https://doi.org/10.5194/gmd-18-5413-2025
https://doi.org/10.5194/gmd-18-5413-2025
Model description paper
 | 
29 Aug 2025
Model description paper |  | 29 Aug 2025

ISWNM-NSCS v2.0: advancing the internal solitary wave numerical model with background currents and horizontally inhomogeneous stratifications

Yankun Gong, Xueen Chen, Jiexin Xu, Zhiwu Chen, Qingyou He, Ruixiang Zhao, Xiao-Hua Zhu, and Shuqun Cai

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An internal solitary wave forecasting model in the northern South China Sea (ISWFM-NSCS)
Yankun Gong, Xueen Chen, Jiexin Xu, Jieshuo Xie, Zhiwu Chen, Yinghui He, and Shuqun Cai
Geosci. Model Dev., 16, 2851–2871, https://doi.org/10.5194/gmd-16-2851-2023,https://doi.org/10.5194/gmd-16-2851-2023, 2023
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Cited articles

Alford, M. H., Lien, R. C., Simmons, H., Klymak, J., Ramp, S., Yang, Y. J., Tang, D., and Chang, M. H.: Speed and evolution of nonlinear internal waves transiting the South China Sea, J. Phys. Oceanogr., 40, 1338–1355, https://doi.org/10.1175/2010JPO4388.1, 2010. 
Álvarez, Ó., Izquierdo, A., González, C. J., Bruno, M., and Mañanes, R.: Some considerations about non-hydrostatic vs. hydrostatic simulation of short-period internal waves. A case study: The Strait of Gibraltar, Cont. Shelf Res.,181, 174–186, https://doi.org/10.1016/j.csr.2019.05.016, 2019. 
Benney, D. J.: Long non-linear waves in fluid flows, Journal of Mathematics and Physics, 45, 52–63, https://doi.org/10.1002/sapm196645152, 1966. 
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Short summary
A new internal solitary wave (ISW) numerical model in the northern South China Sea (ISWNM-NSCS v2.0) improves ISW predictions by incorporating background currents and inhomogeneous stratifications. Additionally, viscosity and diffusivity coefficients are optimized to maintain stable stratifications, extending the forecasting period. Sensitivity experiments show that ISWNM-NSCS v2.0 significantly enhances predictions of various wave properties.
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