Typhoon-driven Storm Jet Generation and Water Level Fluctuations near the Coast of Guangxi.

Dong, D.; Zhu, D.; Ya, H.; Chen, X., and Chen, B., 2019. Typhoon-driven storm jet generation and water level fluctuations near the coast of Guangxi. In: Guido-Aldana, P.A. and Mulahasan, S. (eds.), Advances in Water Resources and Exploration. Journal of Coastal Research, Special Issue No. 93, pp. 427–435. Coconut Creek (Florida), ISSN 0749-0208. Using acoustic Doppler current profiler data from a single station for one year in duration, as well as associated tide level and wind field observational data, the corresponding relationship between westward storm jets and water level fluctuation near the coast of Guangxi during Typhoon Nesat in 2011 is studied. The primary causes of the formation of the westward storm jets near the coast of Guangxi during the typhoon are analyzed. The results show that during the landfall of the typhoon, the surface and bottom current velocities were more than doubled compared to conditions without the typhoon. The maximum residual current speed was more than tripled compared to the normal situation. It is very rare to observe such strong westward storm jets less than 1 km offshore. The generation of strong westward storm jets and water level fluctuation were closely related to the typhoon. Systematic study on the theories of deformation, intensification, and decay of storm jets after the jets entered the coastal bay of Guangxi during the typhoon is of theoretical and practical significance for revealing the characteristics of Guangxi nearshore pollutant transport. [ABSTRACT FROM AUTHOR]