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| FIRST SEA-ICE RECONNAISSANCE BY RADAR IN CHINA |
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| To observe the distribution of pack ice off the coast of the eastern Liaodong Bay and new port of Ying Kou, from December 1981 to March 1982, the sea-ice reconnaissance by radar was carried out off coast of the Bayuquan. The height of radar antenna is thirty-five meters. It covers a radius about 6 miles. The observation includes amount, velocity, direction, concentration of ice drift, ice lane and ice edge etc. The data of direction, velocity and deformation of ice floe were usually obtained by means of photograph, radar screen and chart of radar. The investigation shows that average pattern of ice drift in this area is from south-western to northeastern along the coast and it moves with tidal current. Test has shown that sea-ice reconnaissance by radar has the advantage of wide range, far distance and continuous observation Information of ice drift can be gained at all times. |
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