A Multiscale Energetic Diagnosis of the Response of Mokpo Sea to Typhoon Bolaven - Journal of Geoscience and Environment Protection

GEP > Vol.7 No.8, August 2019

A Multiscale Energetic Diagnosis of the Response of Mokpo Sea to Typhoon Bolaven ()

HTML XML

Download as PDF (Size: 4002KB) PP. 251-267

DOI: 10.4236/gep.2019.78019 457 Downloads 924 Views Citations

Author(s)

Xia Chai^1,2, Lin Wang³

Affiliation(s)

¹School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, China.
²China Meteorological Press, Beijing, China.
³Marine Monitoring and Forecasting Center of Zhejiang Province, Hangzhou, China.

ABSTRACT

The ocean response to typhoon is usually characterized by a cooling on the sea surface. In August 2012, however, a warming (instead of cooling) event occurs in the Yellow Sea outside Mokpo, South Korea, as the typhoon Bolaven (2012) passes. This study gives a brief introduction to this abnormal sea surface warming. It also provides a multiscale energetic diagnosis of the oceanic response to Typhoon Bolaven. We used a recently developed analysis tool named “multiscale window transform” (MWT). Based on the MWT, we also expanded a localized multiscale energy and vorticity analysis (MS-EVA). The fields are reconstructed onto three scale windows: large-scale, abnormal warming-scale, and high frequency tide-scale windows. The results show that the kinetic energy (KE) in the abnormal warming-scale window of the Mokpo area is obviously enhanced during the passage of Bolaven, which can be attributed to three processes: transfer, transport process of KE and wind stress work. At the same time, the large-scale window in the Mokpo area experiences barotropic instabilities with KE transfers from large-scale window to warming-scale window. Besides, the strong wind stress bought by the passage of Bolaven not only inputs a large amount of KE into warming-scale window, but also causes the increase of KE flux convergence.

KEYWORDS

Typhoon, Yellow Sea, Ocean Response, Air-Sea Interaction, Energetic Diagnose

Share and Cite:

Chai, X. and Wang, L. (2019) A Multiscale Energetic Diagnosis of the Response of Mokpo Sea to Typhoon Bolaven. Journal of Geoscience and Environment Protection, 7, 251-267. doi: 10.4236/gep.2019.78019.

Journals Menu

Follow SCIRP

	+1 323-425-8868
	customer@scirp.org
	+86 18163351462(WhatsApp)
	1655362766

	Paper Publishing WeChat

Journals Menu

Home

About SCIRP

Service

Policies