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A study of sea ice in the Sea of Okhotsk with SAR data

Published online by Cambridge University Press:  27 October 2009

Hiroyuki Wakabayashi ,
Kazuyoshi Hirano ,
Fumihiko Nishio ,
Masaaki Aota  and
Shuhei Takahashi
Hiroyuki Wakabayashi
Affiliation:
National Space Development Agency of Japan, Earth Observation Satellite Department, 1-29-6 Hamamatsu-cho, Minato-ku, Tokyo 105, Japan
Kazuyoshi Hirano
Affiliation:
Remote Sensing Technology Center, 1401 Ohashi, Hatoyama, Hiki, Saitama 350-03, Japan
Fumihiko Nishio
Affiliation:
Hokkaido University of Education, Kushiro, 1-15-55 Shiroyama, Kushiro, Hokkaido 085, Japan
Masaaki Aota
Affiliation:
Sea Ice Research Laboratory, Hokkaido University, 6-4-26 Minamigaoka, Mombetsu, Hokkaido 094, Japan
Shuhei Takahashi
Affiliation:
Kitami Institute of Technology, 165 Koencho, Kitami, Hokkaido 090, Japan
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Abstract

The ‘Okhotsk Sea Ice Observation Experiment’ 93' was carried out in February 1993 in the southern part of the Sea of Okhotsk and in Lake Saroma, Japan. The aim of the experiment was to investigate how effectively Synthetic Aperture Radar (SAR) can monitor sea ice in this region. Satellite data from JERS-1/SAR (J-SAR), ERS-1/SAR CESAR), and SPOT-2/HRV, as well as data from airborne sensors and ground-truth data, were utilized. From the overall analysis of those data, several results were obtained. First, the range of backscatter of the ice cover on Lake Saroma was determined, as well as a relation between ice type and backscatter. Second, a method for making SAR mosaic images was developed to monitor sea ice over a wide area. When comparing J-SAR(L-band) data with E-SAR(C-band) data acquired simultaneously over the same area, J-SAR proved to be superior to E-SAR in showing the existence of sea ice. And third, it was confirmed that the backscatter of E-SAR was correlated to the ice thickness, which may be explained by the relation between the backscatter and the ice-surface temperature.

Type
Articles
Information
Polar Record , Volume 31 , Issue 178 , July 1995 , pp. 305 - 314
Copyright
Copyright © Cambridge University Press 1995

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References

Farmer, L.D., and 12 others. 1991. Beaufort Sea ice-1 field data report. Hanover, NH: Naval Oceanographic and Atmospheric Research Laboratory, Branch Office.Google Scholar
Gow, A.J., and Tucker, W.B. III. 1990. Sea ice in the polar regions. In: Smith, W.O. (editor). Polar oceanography, part A: physical science. San Diego: Academic Press: 47–122.CrossRefGoogle Scholar
Kim, Y.S. 1984. Theoretical and experimental study of radar backscatter from sea ice. Unpublished PhD thesis. University of Kansas.CrossRefGoogle Scholar
Kim, Y.S., Moore, R.K., Onstott, R.G., and Gogineni, S.. 1985. Toward identification of optimum radar parameters for sea ice monitoring. Journal of Glaciology 31 (109): 214–219.CrossRefGoogle Scholar
Maykut, G.A. 1985. The ice environment. In: Homer, R.A. (editor). Sea ice biota. Boca Raton, FL: CRC Press: 21–82.Google Scholar
Nakawo, M., and Shinha, N.K.. 1981. Growth rate and salinity profile of first-year sea ice in high Arctic. Journal of Glaciology 27: 315–329.CrossRefGoogle Scholar
Nishio, F., and Aota, M.. 1993. Variability of sea ice extent in the Okhotsk Sea. In: Proceeding of international symposium on ISY polar ice extent, Mombetsu, Japan, 1–3 February 1993. Mombetsu: The Okhotsk Sea and Cold Ocean Research Association: 188–193.Google Scholar
Onstott, R.G. 1992. SAR and scatterometer signatures of sea ice. In: Carsey, F.D. (editor). Microwave remote sensing of sea ice. Washington, DC: American Geophysical Union (Geophysical Monograph 68): 73–104.CrossRefGoogle Scholar
Shimada, M. 1993. User's guide to NASDA's SAR products. Saitama: Earth Observation Center, NASDA (Technical Note HE-93014 ).Google Scholar
Soulis, E.D., Lennox, W.C., and Sykes, J.F.. 1989. Estimation of the thickness of undeformed first year ice using radar backscatter. In: Quantitative remote sensing: an economic tool for the nineties: proceedings of IGARSS '89 symposium, Vancouver, Canada, 10–14 July 1989. Piscataway, NJ: The Institute of Electrical and Electronics Engineers: IV, 2366–2369.Google Scholar
Ulaby, F.T., Moore, R.K., and Fung, A.K.. 1982. Microwave remote sensing: active and passive. Volume II: Radar remote sensing and surface scattering and emission theory. Norwood: Artech House.Google Scholar
Ulaby, F.T., Moore, R.K., and Fung, A.K.. 1986. Microwave remote sensing: active and passive. Volume III: From theory to application. Norwood: Artech House.Google Scholar
Vant, M.R., Ramseier, R.S., and Makios, V.. 1978. The complex dielectric constant of sea ice at frequencies in the range 0.1–40 GHz. Journal of Applied Physics 43: 1264–1280.CrossRefGoogle Scholar
Wakabayashi, H., Weeks, W.F., and Jeffries, M.O.. 1993. A C-band backscatter model for lake ice in Alaska. In: Better understanding of Earth environment: proceedings of IGARSS '93 symposium, Tokyo, Japan, 18–21 August 1993. Piscataway, NJ: The Institute of Electrical and Electronics Engineers: III, 1264–1266.Google Scholar
Wetzel, L.B. 1990. Sea clutter. In: Skolnik, M. (editor), Radarhandbook. York: McGraw-Hill: 13.12–13.40.Google Scholar