动力定位系统在大洋富钴结壳调查中的应用

大洋富钴结壳资源调查受到海流、风力、波浪等外界作力影响,导致调查效率低,调查定位精度下降,甚至损坏调查设备。动力定位系统能让调查船舶长时间保持在某点上,让船舶极低速保方航行,或跟随水下调查设备航行,从而克服外界因素对调查的影响,保障调查安全。介绍了动力定位系统原理和主要功能及大洋富钴结壳主要调查手段,分析了动力定位系统在海底摄像、深海拖网、海底浅钻、重力活塞取样、ROV等手段中的应用,得出该系统在大洋富钴结壳调查应用中能提高工作效率、调查安全性和定位精度,以确保调查者更真实地获得海底资源资料的结论。

THE APPLICATION OF DYNAMIC POSITION SYSTEM TO COBALT-RICH CRUST SURVEY IN OCEAN

Current, wave and wind usually bring severe impacts on the efficiency of cobalt-rich crust survey in the ocean. The positioning accuracy will drop and the equipment is easy to be damaged. DPS(the Dynamic Positioning System),however, may keep the vessel staying at a point, or make it moving slowly in certain direction, or make it move following the rhythm of the equipment movement to reduce the affects of the external factors from the ocean to the vessel. This paper introduces the principles and functions of DPS, and some methods for cobalt-rich crust survey in the ocean, such as seabed film taking, seabed trawling, seabed drilling, piston sampling and ROV survey. By using DPS we may ensure a safe survey in the ocean with better data and information of cobalt-rich crust from the seabed.