Abstract
Monthly variations of sensible heat, latent heat and momentum fluxes and the modification of sea temperature to air temperature were examined at four coastal stations—Sokcho, Kangnung, Ulsan and Chungmu in the path of the East Korea Warm Current from the year of 1981 to 1990, which was one of main migration routes of Japanese common squid. The difference between monthly averaged sea surface and air temperatures at the 10 m height above the sea surface mainly became negative values from April through August, while they had positive ones from September through March. Monthly variability of the temperature differences is significant in both summer and winter, while it is generally small in spring and fall. Negative values of sensible heat fluxes, which indicated a heat gain by the sea through heat conduction across the air-sea interface were found at the four coastal stations from April to August. Minimum values of sensible heat fluxes at Sokcho, Kangnung and Chungmu were in June, except for Ulsan in August. To the contrary, positive sensible heat flux implying a heat loss from sea toward atmosphere occurred from October to February with a maximum in December. Latent heat fluxes due to condensation of moist air over sea surface had small magnitudes from April to August and those due to evaporation of water particles from the sea surface into the lower atmosphere had relatively large magnitudes from October to March. Minimum values of latent heat fluxes also occurred in June except for August in Ulsan. Momentum flux was small from June to August under weak wind in summer, but it was large from December to February under strong wind in winter. Regression equations between sea surface temperature and air temperature at the 10 m height above the sea surface had very high correlation coefficients from 0.92-0.98, except for 0.78-0.84 of Ulsan, which was partially affected by upwelling of cool water from the bottom into the sea surface. Similar to the sea surface, correlation coefficients were over 0.83-0.97 except for 0.70-0.79 for Ulsan at the 10 m depth of sea and were over 0.70-0.95 except for 0.59-0.82 for Ulsan at the 20 m depth.
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References
Budyko, M. I. (1963): Atlas of the heat balance of the earth. Akad. Nauk SSSR, Prezidium. Mezhduvtt, J.R., 1977. domstvennyi Geofiz. Komitet, 69 pp.
Bunker, A. F. (1988): Surface fluxes of the South Atlantic Ocean. Mon. Wea. Rev., 116, 809–925.
Choi, H. (1993): On the effect of air temperature to the modification of sea temperature in the southern and eastern coastal seas of Korea. J. East Coast. Res., 2, 27–35.
Choi, H., J. W. Seo and C. S. Kim (2000): Numerical prediction on sea surface drift induced by windstorm in the coastal complex terrain. Korean J. Atmos. Sci., 3, 67–82.
Enriquez, A. G. and C. A. Friehe (1984): Variability of the atmospheric boundary layer over a coastal shelf in winter during smile. Proc. 2nd Conference on Coastal Meteorology, Amer. Meteor., Soc., Los Angeles, 102–107.
Garratt, J. R. (1977): Review of drag coefficients over ocean and continents. Mon. Wea. Rev., 105, 915–929.
Gill, A. E. (1982): Atmosphere-Ocean Dynamics. Academic Press, 622 pp.
Kang, Y. Q. (1985): On the annual variations of sea water and air temperature and sea-air temperature evaporation in the East Sea. Bull. Korean Fish. Soc., 18, 374–389.
Kiyofuji, H. and S. Saitoh (2003): Spatial and temporal variability of Japanese common squid (Todarodes pacificus) fishing ground in the Japan/East Sea. Processes and Dynamics in the Northwestern Pacific Ecosystems—Proc. China-Japan-Korea Joint GLOBEC Symposium, Ansan, Dec., 158–164.
KMA (Korean Meteorological Administration) (1982-1991: Hourly meteorological data from 1982-1991.
Knauss, J. A. (1998): Introduction to Physical Oceanography. 2nd. ed. (Korean-language ed.), Sigma Press, 388 pp.
Large, W. G. and S. Pond (1981): Open ocean momentum flux measurements in moderate to strong winds. J. Phys. Oceanogr., 11, 324–336.
Large, W. G. and S. Pond (1982): Sensible and latent heat flux measurements in moderate to strong winds. J. Phys. Oceanogr., 12, 464–482.
Lee, J. C. (1983): Variations of sea level and sea surface temperature associated with wind-induced upwelling in the southeast coast of Korea in summer. J. Korean Ocean. Soc., 18, 149–160.
Lee, K. B. (1978): Study on the coastal cold water near Ulsan. J. Ocean. Soc. Korea, 13, 5–10.
Liu, W. T., K. B. Katsaros and J. A. Businger (1979): Bulk parameterization of air-sea exchanges of heat and water vapor including the molecular constraints at the interface. J. Atmos. Sci., 36, 1722–1735.
Manabe, S. (1957): On the modification of air mass over the Japan Sea when the outburst of cold water predominates. J. Meteor. Soc. Japan, Ser. 2, 35, 311–326.
Masumoto, Y. and T. Yamagata (1988): Response of the western tropical Pacific to the Asian winter monsoon: The generation of Mindanao dome. J. Phys. Oceanogr., 21, 1386–1398.
NFRDI (National Fisheries Research and Development Institute) (1982-1991: 1982–1991 Annual Reports of Oceanographic Observations. Rep. No. 36-45.
Ninomiya, K. (1972): Heat and water budget over the Japan islands during the period of heavy snow storm. J. Meteor. Soc. Japan, 40, 317–329.
Philander, S. G., W. J., Hurlin and A. D. Seigel (1987): Simulation of the seasonal cycle of the tropical Pacific Ocean. J. Phys. Oceanogr., 17, 1986–2002.
Sakurai, Y. (2002): Stock fluctuations for main fisheries species and common squid related to climate regime shift in the Japan/East Sea. Proc. China-Japan-Korea Joint GLOBEC Symposium, Ansan, Dec., p. 24.
Seung, Y. H. (1974): A dynamic consideration on the temperature distribution in the east coast of Korea in August. J. Korean Soc. Ocean., 9, 52–58.
Seung, Y. H. (2002): A simple analytical model for the interaction between the East Korea Warm Current and the Ulleung warm eddy. J. Korean Soc. Ocean., 37, 20–26.
Shin, H., D. H. Kang and Y. Lee (2002): Fate of the common squid population in Korean waters an oceanographic experiment repeated annually and over a longer period. Proc. China-Japan-Korea Joint GLOBEC Symposium, Ansan, Dec., p. 23.
Steven, K. E. and R. W. Reynolds (1981): Estimating monthly averaged air-sea transfer of heat and momentum using the bulk aerodynamic method. J. Phys. Oceanogr., 11, 457–548.
Trenberth, K. E., G. William and J. G. Olson (1990): The mean annual cycle in global ocean wind stress. J. Phys. Oceanogr., 20, 1742–1760.
Tso, C. P., B. K. Chan and M. A. Hashim (1990): An improvement on the basic energy balance model for urban thermal environment analysis. Energy and Buildings, 14, 143–152.
Wallace, J. M. and P. V. Hobbs (1977): Atmospheric Science— An Introductory Survey. Academic Press, 467 pp.
Yamagata, T. and Y. Masumoto (1989): A simple ocean-atmosphere coupled model for the origin of a warm El Nino-Southern oscillation event. Phile. Trans. R. Soc., London, A329, 225–236.
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Choi, H., Zhang, Y.H. Monthly Variation of Sea-Air Temperature Differences in the Korean Coast. J Oceanogr 61, 359–367 (2005). https://doi.org/10.1007/s10872-005-0046-y
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DOI: https://doi.org/10.1007/s10872-005-0046-y