黄渤海无缝深度基准面绘制与分析

Mapping and Analyzing of the Yellow Sea and the Bohai Sea Seamless Chart Datum

针对海洋测绘中的深度基准面,探讨了格网化和无缝连续深度基准面的确定方法,使用自编潮汐获取工具计算出以10km为间隔的黄渤海海区的深度基准面数据,并应用成图软件绘制出比例尺为1∶100万的黄渤海深度基准面图,对黄渤海的深度基准面分布特点做了一定的分析。采用类似方法可以绘制中国海区乃至全球海洋的无缝深度基准面。

The calculation method of seamless and grid continuous chart datum is presented using CNTide Gets softw are and other tools,and the chart datum data with 10 km intervals in the Yellow Sea and the Bohai Sea area is constructed. The depth datum map with scale of 1 ∶ 1 000 000 is presented using mapping softw are. Some analyse of chart datum characteristics in the Yellow Sea and the Bohai Sea area are also done. The conclusion can be draw n that the similar method can be used to map the chart datum of the China Sea and the global oceans.