The upper ocean response to tropical cyclones in the northwestern Pacific analyzed with Argo data
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A large number of autonomous profiling floats deployed in global oceans have provided abundant temperature and salinity profiles of the upper ocean. Many floats occasionally profile observations during the passage of tropical cyclones. These in-situ observations are valuable and useful in studying the ocean’s response to tropical cyclones, which are rarely observed due to harsh weather conditions. In this paper, the upper ocean response to the tropical cyclones in the northwestern Pacific during 2000–2005 is analyzed and discussed based on the data from Argo profiling floats. Results suggest that the passage of tropical cyclones caused the deepening of mixed layer depth (MLD), cooling of mixed layer temperature (MLT), and freshening of mixed layer salinity (MLS). The change in MLT is negatively correlated to wind speed. The cooling of the MLT extended for 50–150 km on the right side of the cyclone track. The change of MLS is almost symmetrical in distribution on both sides of the track, and the change of MLD is negatively correlated to pre-cyclone initial MLD.
Key wordsupper ocean tropical cyclone mixed layer Argo data northwestern Pacific
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- Bender, M. A., I. Ginis and Y. Kurihara, 1993. Numerical simulations of tropical cyclone-ocean interaction with a high-resolution coupled model. J. Geophys. Res. 98: 23 245–23 262.Google Scholar
- Black, P. G., 1983. Ocean Temperature Changes Induced by Tropical Cyclones. Ph.D. dissertation, The Pennsylvania State University, 278p.Google Scholar
- Elsberry, R. L., T. Fraim and Trapnell, 1976. A mixed layer model of the ocean thermal response to hurricances. J. Geophys. Res. 81: 1 153–1 162.Google Scholar
- Ginis, I., 2002. Hurricane-ocean interactions, Tropical cyclone-ocean interactions, Chapter 3. In Atmosphere-Ocean Interactions, edited by Perrie W, WIT Press. Advances in Fluid Mechanics Series 33: 83–114.Google Scholar
- Goni, G. and J. Trinanes, 2003. Near-real time estimates of upper ocean heat content (UOHC) and tropical cyclone heat potential (TCHP) from altimetry. http://www.aoml.noaa.gov/phod/cyclone/data.
- Kwon, Y. O. and S. C. Riser, 2003. The ocean response to the hurricane and tropical storm in North Atlantic during 1997–1999. School of Oceanography, University of Washington, USA.Google Scholar
- Monterey, G. L. and S. Levitus, 1997. Seasonal variability of mixed layer depth for the World Ocean. NOAA NESDIS Atlas 14, U.S. Gov. Printing Office, Washington, D.C.Google Scholar
- Park, J. J., K. A. Park, K. Kim et al., 2004. Upper ocean response to typhoons and tropical storms in the North Pacific. A joint Korea-China-Japan Regional ARGO Workshop, Jeju Island, Korea, 6–8 September.Google Scholar
- Pollard, R. T., P. B. Rhines and R. O. R. Y. Thompson, 1973. The deepening of the wind-mixed layer. Geophys. Fluid Dyn. 3: 381–404.Google Scholar
- Tong M. R., Z. H. Liu, C. H. Sun et al., 2003. Analysis of data Quality Control Process of the ARGO Profiling Buoy. Ocean Technology 22(4): 79–84. (in Chinese)Google Scholar
- Xu, D. F., Z. H. Liu, X. H. Xu et al., 2005. The influence of typhoon on the sea surface salinity in the Warm Pool of the western Pacific. Acta Oceanologica Sinica 27(6): 9–15. (in Chinese)Google Scholar
- Xu, J. P., 2002. Introduction of the Global Argo Ocean Observing System. Beijing: China Ocean Press. (in Chinese)Google Scholar