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水深测量历来都不被重视,其原因有二:(1)认为水下地貌由于水的活动性强,相应地变化莫测;(2)对水下地形要求精度不高,只要达到能够通航就可以。据联合国调查,在全世界128个沿海国家中,只有57个国家有测海域的能力,这种施测能力也大半为自己国家国防需要,由海军施测一些自己临海水域,确保自己船只的安全,因此就以海测来说,世界各国都没有很好地进行,需要施测海域的国家,如挪威占全国海域80％,英国占57％,法国占64％,荷兰占40％,所有商船上有一半恐怕还是采用的英国海军部印刷的海图在航行,其中很多是1935年旧法施测,错误与误差都很严重,所以发生了1971年旅游轮“昂蒂叶”号;
Water depth measurement has never been taken seriously because of two reasons: (1) the underwater landscape is unpredictable due to its high water activity; (2) the accuracy of underwater topography is not high, so long as it can be navigated can. According to the UN survey, of the 128 coastal countries in the world, only 57 have the capability to measure sea areas. For most of these countries, they have the ability to test their own national defense. The Navy will test some of its own coastal waters to ensure the safety of its own vessels. Therefore, according to the sea survey, all the countries in the world are not well conducted. Countries that need to test the sea areas include Norway, which accounts for 80% of the total area of the country, Britain, 57%, France, 64% and the Netherlands, 40% I am afraid that half or half of the charts printed by the British Admiralty were still on the voyage. Many of them were laid down by the old law in 1935 with serious errors and errors. Therefore, the 1971 “Antitillo”