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Airborne laser profiling of swell in an open ice field

1975; American Geophysical Union; Volume: 80; Issue: 33 Linguagem: Inglês

10.1029/jc080i033p04520

2156-2202

Peter Wadhams,

Icing and De-icing Technologies

Journal of Geophysical Research (1896-1977)Volume 80, Issue 33 p. 4520-4528 Airborne laser profiling of swell in an open ice field Peter Wadhams, Peter WadhamsSearch for more papers by this author Peter Wadhams, Peter WadhamsSearch for more papers by this author First published: 20 November 1975 https://doi.org/10.1029/JC080i033p04520Citations: 46AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Airborne laser profiles of swell entering the drift ice off the east coast of Newfoundland were made using a Geodolite profiler mounted in a DC-4 ice patrol aircraft. Concurrent infrared imagery along the track enabled the floe size distribution to be recorded. A linear decay of wave energy with 'effective penetration' (distance penetrated multiplied by fractional ice cover) was found, the decay rate increasing with wave frequency. A simple theoretical model based on progressive reflection from rows of floes gave good agreement with the observations. References Archibald, D. C., An aerial ice reconnaissance platform with remote sensors suitable for the Canadian ice reconnaissance program, Proceedings of the International Sea Ice Conference, 229–236Nat. Res. Counc. of Iceland, Reykjavik, 1972. Barnett, T. P., J. C. Wilkerson, On the generation of ocean wind waves as inferred from airborne radar measurements of fetch-limited spectra, J. Mar. Res., 253, 292–328, 1967. Bingham, C., M. D. Godfrey, J. W. Tukey, Modern techniques of power spectrum estimation, Trans. IEEE Audio Electroacoustics, AU-152, 56–66, 1967. Cartwright, D. E., The use of directional spectra in studying the output of a wave recorder on a moving ship, Ocean Wave Spectra, 203–218, Prentice-Hall, Englewood Cliffs, N. J., 1963. Cooley, J. W., J. W. Tukey, An algorithm for the machine calculation of complex Fourier series, Math. Comput., 19, 1965. Darbyshire, J., Wave measurements with a radar altimeter over the Irish Sea, Deep Sea Res., 17, 893–901, 1970. Dinsmore, R. P., Ice and its drift into the North Atlantic Ocean, Symposium on Environmental Conditions in the NW Atlantic 1960–1969, Spec. Publ., 8, 82–128, Int. Comm. for NW Atlantic Fish., Dartmouth, Nova Scotia, 1972. Harwood, T. A., Remote sensing of ice in navigable waters, Ice Seminar, 95–104, Can. Inst. of Mining and Met., Calgary, Alberta, 1969. Hasselmann, K., On the mass and momentum transfer between short gravity waves and larger-scale motions, J. Fluid Mech., 50, 189–205, 1971. Hendrickson, J. A., L. M. Webb, R. J. Quigley, Study of natural forces acting on floating ice fieldsRep. NBy-32215, 71Nat. Eng. Sci. Co., Pasadena, Calif., 1962. Hibler III, W. D., Removal of aircraft altitude variation from laser profiles of the Arctic ice pack, J. Geophys. Res., 7736, 7190–7195, 1972. Hunkins, K., Waves on the Arctic Ocean, J. Geophys. Res., 676, 2477–2489, 1962. Ketchum Jr., R. D., Airborne laser profiling of the Arctic pack ice, Remote Sensing Environ., 2, 41–52, 1971. Ketchum Jr., R. D., W. I. Wittman, Recent remote sensing studies of the East Greenland pack ice, Proceedings of the International Sea Ice Conference, 213–226Nat. Res. Counc. of Iceland, Reykjavik, 1972. Lamb, H., Hydrodynamics 6th ed., 738, Cambridge University Press, London, 1932. Leschack, L. A., R. A. Haubrich, Observations of waves on an ice-covered ocean, J. Geophys. Res., 6918, 3815–3821, 1964. Markham, W. E., Growth, break-up and movement of ice in Canadian coastal waters, Ice Seminar, 31–35, Can Inst. of Mining and Met., Calgary, Alberta, 1969. Phillips, O. M., The Dynamics of the Upper Ocean, 261, Cambridge University Press, London, 1966. Robin, G. de Q., Wave propagation through fields of pack ice, Phil. Trans. Roy. Soc. London, Ser. A., 2551057, 313–339, 1963. St. Denis, M., W. J. Pierson, On the motion of ships in confused seas, Soc. Nav. Architects Mar. Eng. Trans., 61, 332–357, 1953. Schule Jr., J. J., L. S. Simpson, P. S. Deleonibus, A study of fetch-limited wave spectra with an airborne laser, J. Geophys. Res., 7618, 4160–4171, 1971. Smirnov, V. N., andE. M. Lin'kov, Tiltmeter observations of seaice oscillations, in Studies in Ice Physics and Ice Engineering, edited by G. N. Yakovlev, Gidrometeorologicheskoe Izdatel'stvo,Leningrad. ( English translation, pp. 184–190,Israel Program for Scientific Translations,Jerusalem,1971.). Sytinskiy, A. D., V. P. Tripol'nikov, Some results of investigations of the natural vibrations of ice fields of the central Arctic, Izv. Akad. Nauk. SSSR, Ser. Geofiz., 4, 615–621, 1964. Wadhams, P., Measurement of wave attenuation in pack ice by inverted echo sounding, Proceedings of the International Sea Ice Conference, 255–260Nat. Res. Counc. of Iceland, Reykjavik, 1972. Wadhams, P., Attenuation of swell by sea ice, J. Geophys. Res., 7818, 3552–3563, 1973a. Wadhams, P., The effect of a sea ice cover on ocean surface waves, Ph.D. dissertation,, 223 pp.,Univ. of Cambridge,Cambridge,1973b. Citing Literature Volume80, Issue33Oceans20 November 1975Pages 4520-4528 ReferencesRelatedInformation