Abstract
Directional wave spectra measured by a cloverleaf buoy in the East China Sea during AMTEX '75 have been compared with those calculated with the operational numerical MRI wave model developed at the Meteorological Research Institute of the Japan Meteorological Agency (J.M.A.). It is shown that the numerical wave model MRI can predict rather well, not only the frequency spectrum, but also the angular distribution function of the spectrum. The frequency dependence of the calculated angular distribution function is quite similar to that observed; the angular distribution is narrower for the spectral components near the peak spectral frequency but widens toward high frequencies and approaches the cos2ϑ-distribution.
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References
Bunting, D.C. (1970): Evaluating forecasts of ocean wave spectra. J. Geophys. Res.,75, 4131–4143.
Cardone, V.C. (1969): Specification of the wind distribution in the marine boundary layer for wave forecasting. TR-59-1, Dept. Meteorol. and Oceanogr. New York Univ., 131 pp.
Ewing, J.A. (1971): A numerical wave prediction method for the North Atlantic Ocean. Dt. Hydrogr. Z.,24, 241–261.
Gunther, H., G.J. Komen, and W. Rosenthal (1984): A semi-operational comparison of two parametrical wave prediction models. Dt. Hydrogr. Z.,37, 89–106.
Honda, T. and H. Mitsuyasu (1978): Joint distributions of the period and heights of ocean waves. Proc. 25th Conf. Coastal Eng. in Japan, 75–106 (in Japanese).
Inoue, T. (1967): On the growth of the spectrum of a wind generated sea according to a modified Miles-Phillips mechanism and its application. Sci. Lab. Rep. 67-5, New York Univ., 74 pp.
Isozaki, I. and T. Uji (1973): Numerical prediction of ocean wind waves. Pap. Met. Geophys.24, 207–231.
Isozaki, I. and T. Uji (1974): Numerical model of marine surface winds and its application to the prediction of ocean wind waves, Pap. Met. Geophys.25, (in Japanese), 197–231.
Isozaki, I., T. Uji, T. Seto and A. Kaietsu (1976): Ocean waves on Sagami Bay caused by Typhoon 7410. Oceanogr. Mag.,27, 1–23.
Janssen, P.A.E.M., G.J. Komen, and W.J.P. de Voogt (1984): An operational coupled hybrid wave prediction model. J. Geophys. Res.,89, 3635–3654.
Mitsuyasu, H., F. Tasai, T. Suhara, S. Mizuno, M. Okusu, T. Honda, and K. Rikiishi (1975): Observations of the directional spectrum of ocean waves using a cloverleaf buoy. J. Phys. Oceanogr.,5, 750–760.
Mitsuyasu, H., F. Tasai, T. Suhara, S. Mizuno, M. Okusu, T. Honda, and K. Rikiishi (1980): Observations of the power spectrum of ocean waves using a cloverleaf buoy, J. Phys. Oceanogr.,10, 286–296.
Pierson, W.J. and L.I. Moskowitz (1964): A proposed spectral form for fully developed seas based on the similarity theory of S.A. Kitaigorodskii. J. Geophys. Res.,69, 5181–5190.
Plant, W.J. (1982): A relationship between wind stress and wave slope. J. Geophys. Res.,87, 1961–1967.
Ross, D. and V. Cardone (1978): A comparison of parametric and spectral Hurricane wave prediction products. p. 647–665.In: Turbulent Fluxes through the Sea Surface, Wave Dynamics and Prediction, ed. by A. Favre and K. Hasselmann, Plenum Press.
The SWAMP group (1982): The Sea Wave Modeling Project (SWAMP).In: Intercomparison study of wind wave prediction models, Part 2; A compilation of results KNMI Publication, 161 pp.
The SWAMP group (1985): Ocean Wave Modeling. Plenum Press, 256 pp.
Uji, T. (1975): Numerical estimation of the sea wave in a typhoon area, Pap. Met. Geophys.26, 199–217.
Uji, T. (1984): A coupled discrete wave model MRIII. J. Oceanogr. Soc. Japan,40, 303–313.
Uji, T. and I. Isozaki (1972): The calculation of wave propagation in the numerical prediction of ocean waves, Pap. Met. Geophys.,23, 347–359.
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Mitsuyasu, H., Uji, T. A comparison of observed and calculated directional wave spectra in the East China Sea. Journal of the Oceanographical Society of Japan 45, 338–349 (1989). https://doi.org/10.1007/BF02123487
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DOI: https://doi.org/10.1007/BF02123487