我国船载深水多波束在极区中的应用研究

    The application research of shipborne deep ocean multi-beam system in polar regions in China

    • 摘要: 受浮冰、破冰过程和定位等影响,船载多波束在极地高纬地区进行海底地形地貌测量时,与常规大洋调查存在较大差异。为提高船载多波束系统在极地高纬度地区的应用效果,提升地形数据质量,通过对我国极地科考破冰船安装的深水多波束系统在多次南极和北极科考航次中的应用实践,研究了冰区环境下船底安装换能器的保护、高纬地区定位系统对地形测量的影响、破碎冰块夹杂较多的环境条件下连续获取表面声速的方法、船舶破冰工况对观测数据质量的影响等内容。结合“雪龙2”号极地现场应用实际,充分测试,积极探索,为后续极区船载多波束建设和使用积累探测经验。

       

      Abstract: Due to the influence of floating ice,ship ice-breaking and positioning signals,the application of multi-beam seabed topographic and geomorphologic survey in the polar high latitude region is quite different from the conventional ocean survey. In order to improve the efficiency of the multi-beam system in the polar high latitude area,and improve the quality of the terrain data obtained. Through the application and exploration of the deep-water multi-beam system installed on the polar research icebreaker R/V Xuelong 2 in several expeditions to the Antarctic and Arctic. The protection of the transducer installed at the bottom of the ship,the influence of the positioning system in high latitude area on topographic survey,how to obtain the surface sound velocity continuously under the condition of more broken ice,and the influence of ship breaking conditions on the quality of multi-beam observation data are studied. Combined with the actual application of R/V Xuelong 2 in polar field,it has fully tested,some positive explorations have been made,which will further accumulate beneficial experience for the subsequent construction and the use of shipborne multi-beam in polar region.

       

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