由于国际海洋法实行二百米水深领海区的划分,大陆架地形测量在许多国家已成为国土测量的组成部分,而大陆架地形图与陆地地形图基本上被纳入了统一的系列。大陆架是陆地在海中的延续,大陆架地形测量也是陆地地形测量向海中的延续,所以大陆架地形图和陆地地形图在坐标系统、高程基准、投影、比例尺系列、分幅和图幅编号等方 As a result of the division of territorial waters by the International Law of the Sea at a depth of 200 meters, the terrain survey of the continental shelf has become an integral part of land surveying in many countries and the continental shelf topographic maps and terrain maps are basically incorporated into a unified series. The continental shelf is the continuation of the land in the sea. The continental shelf topography is also a continuation of terrestrial topographic survey to the sea. Therefore, the topographical maps of the continental shelf and the terrain map of the terrain vary in coordinate system, elevation datum, projection, scale series,