3차원 수치모델상에서 태풍통과시 '우측쏠림현상'
Variations of ‘Rightward Bias’ with Typhoon Using an Ideal 3D Primitive Equation Numerical Model
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
An ideal 3D primitive equation model is implemented to investigate upper ocean response to typhoons, focusing on rightward bias (RWB) which means an appearance of an intensified sea surface cooling to the right side of the typhoon track. The model has 26-stratified levels and a flat bottom (1000 m), covering a rectangular domain of about 3,060 km×3,300 km with four open boundaries. The sea water is forced by an atmospheric pressure and a gradient wind of the typhoon. The model well reproduces the RWB in previous observations and theoretical analyses. For the fast moving typhoon (FMT) (-8m/sec), the model shows that in the mixed layer (ML), the RWB in the SST noticeably appears clearly illustrating the coupling between inertial motion and wind stress, but in the subsurface layer (-100m), the RWB does not emerge since a cyclonic current field (CCF) caused by wind stress curl is primarily dominant. For the slowly moving typhoon (SMT) (-3m/sec), however, the RWB does not emerge because the coupling is weakened and the CCF is rather predominant even in the ML. In the model, we conclude that the RWB noticeably emerges in the FMT but does not emerge in the SMT related to predominance of CCF.
Abstract
An ideal 3D primitive equation model is implemented to investigate upper ocean response to typhoons, focusing on rightward bias (RWB) which means an appearance of an intensified sea surface cooling to the right side of the typhoon track. The model has 26-stratified levels and a flat bottom (1000 m), covering a rectangular domain of about 3,060 km×3,300 km with four open boundaries. The sea water is forced by an atmospheric pressure and a gradient wind of the typhoon. The model well reproduces the RWB in previous observations and theoretical analyses. For the fast moving typhoon (FMT) (-8m/sec), the model shows that in the mixed layer (ML), the RWB in the SST noticeably appears clearly illustrating the coupling between inertial motion and wind stress, but in the subsurface layer (-100m), the RWB does not emerge since a cyclonic current field (CCF) caused by wind stress curl is primarily dominant. For the slowly moving typhoon (SMT) (-3m/sec), however, the RWB does not emerge because the coupling is weakened and the CCF is rather predominant even in the ML. In the model, we conclude that the RWB noticeably emerges in the FMT but does not emerge in the SMT related to predominance of CCF.
참고문헌 (25)
- S. M. Babin, "Satellite evidence of hurricane-induced phytoplankton blooms in an oceanic desert", Journal of Geophysical Research: Oceans, 109(C3), pp.C03043~ (2004), American Geophysical Union (AGU)[DOI]
- Blumberg AF, "Three dimensional coastal ocean models, Coastal Estuarine Science, vol. 4", pp.1~208 (1987), AGU
- Simon W. Chang, "Numerical Simulations of the Ocean's Nonlinear, Baroclinic Response to Translating hurricanes", Journal of Physical Oceanography, 8(3), pp.468~480 (1978), American Meteorological Society[DOI]
- Yu-Chia Chang, "Observed near-surface flows under all tropical cyclone intensity levels using drifters in the northwestern Pacific", Journal of Geophysical Research: Oceans, 118(5), pp.2367~2377 (2013), American Geophysical Union (AGU)[DOI]
- Fugita T, "Pressure distribution within typhoon", Geophys Mag, 23, pp.437~451 (1952)
- C. J. Hearn, "A Three-Dimensional Barotropic Model of the Response of the Australian North West Shelf to Tropical Cyclones", Journal of Physical Oceanography, 20(1), pp.60~80 (1990), American Meteorological Society[DOI]
- Hong CH, "The effect of typhoon on the coastal sea level variations in the Tsushima Straits", Umino kenkyu, 1, pp.225~249 (1992)
- Chul-Hoon Hong, "A three-dimensional numerical simulation of Typhoon Holly in the northwestern Pacific Ocean", Journal of Geophysical Research, 108(C8), pp.1~18 (2003), American Geophysical Union (AGU)[DOI]
- 홍철훈, "북서태평양에서 3차원 수치모델을 이용한 해수면냉각에 미치는 태풍의 영향", 한국수산과학회지, 41(6), pp.518~524 (2008), 한국수산과학회
- Hong CH, "Upper ocean response to typhoons in the Northwestern Pacific", Reports of Research Institute for Applied Mechanics, Kyushu University, 143, pp.55~62 (2012)
- Hong CH, "Upper ocean response to typhoon, focusing on ‘Rightward bias’ using an ideal 3D primitive equation numerical model", Abstr Annu Meet KOFFST, 146 (2015)
- S.-M. Huang, "Right-side cooling and phytoplankton bloom in the wake of a tropical cyclone", Journal of Geophysical Research: Oceans, 120(8), pp.5735~5748 (2015), American Geophysical Union (AGU)[DOI]
- Jordan CL, "On the influence4 of tropical cyclones on the sea surface temperature", Proc Symp Tropical Meteorology, pp.614~622 (1964)
- Masuda A, "Response of the upper ocean to a typhoon-Idealized model", Abstr Fall Meet J Oceanogr, 90 (2011)
- Mellor G, "Atmospheric Oceanic Sciences", pp.1~39 (2004), Princeton University
- Miyazaki M, "Theoretical investigation of typhoons surges along the Japanese coast", Oceanogr Mag, 13, pp.51~75 (1961)
- Price JF, "Upper ocean response to hurricane", J Phys Oceanogr, 11, pp.153~175 (1981)
- Price JF, "Diurnal cycling : observations and models of the upper ocean response to diurnal heating, cooling, and wind mixing", J Geophys Res Oceans, 91, pp.8411~8427 (1986)
- Pudov, VD, "Vertical structure of the wake of a typhoon in the upper ocean", Okeanologiya, 21, pp.142~146 (1979)
- Thomas B. Sanford, "Highly resolved observations and simulations of the ocean response to a hurricane", Geophysical Research Letters, 34(13), pp.L13604~ (2007), American Geophysical Union (AGU)[DOI]
- Sommerfeld A., "Partial differential equations in physics", pp.335~ (1949), Academic Press
- Taira KS, "Observation of temperature and velocity from a surface buoy moored in the Shikoku basin(OMLET-88)-An oceanic response to a typhoon", J Oceanogr, 49, pp.397~406 (1993)
- Wang G, "Observed threedimensional structure of ocean cooling induced by Pacific tropical cyclones", Geophys Res Lett, 43, pp.7632~7638 (2016)
- Wu R, "Impact of typhoon Kalmaegi(2014)on the South China Sea : simulations using a fully coupled atmosphere-ocean-wave model", Ocean Modell, 131, pp.132~151 (2018)
- Ye HJ, "A subsurface chlorophyll a bloom induced by typhoon in the South China Sea", J Mar Syst, 128, pp.138~145 (2013)