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为获取渤海近岸堆积冰特征参数,发展了集数码照相拍摄、GPS定位和全站仪测高为一体的确定近岸堆积冰特征参数调查技术.通过现场堆积冰外边缘线踏勘,堆积冰外边缘断面的等距离正面摄影和全站仪冰面起伏高程测量,获得堆积冰宽度、堆积冰边缘断面高度、堆积冰表面高度和起伏角度等几何特征参数.综合分析发现:堆积冰的最大外边缘线不超过0m等水深线;辽东湾堆积冰高度一般小于2m,最大2.8m;堆积断面起伏的平均切角22°;高潮位时沿岸堆积冰丘表面平缓,低潮位时相同冰丘表面陡峭.
In order to obtain the characteristic parameters of accumulated ice in the coastal area of the Bohai Sea, a survey technique for determining characteristic parameters of nearshore ice accumulation, which combines digital photography, GPS positioning and total station altimetry, has been developed. Equidistant frontal photography of edge section and elevation measurement of total station ice surface, geometric parameters such as width of accumulated ice, height of edge of accumulated ice, height of surface and stacking angle of accumulated ice were obtained.The comprehensive analysis showed that the maximum outer edge The line does not exceed 0m and other water depth lines; Liaodong Bay heap ice height is generally less than 2m, the maximum 2.8m; stacking section undulating average cutting angle 22 °; climax when the coastal accumulation of ice hilly surface is gentle, low tide bit steep when the same surface.