吴淞零点
吴淞零点-
简要介绍长江河口地区吴淞零点的历史沿革，分析了长江河口地区水域平均海水面、理论深度基准面的空间变化，进而讨论长江河口地区的高程系统。
It briefly introduces the historical change of Wusong Datum in the Changjiang Estuary region , and analyzes the spatial variations of regional mean sea level and theoretical bathymetrical datum plane in this region . A discussion is also given to the height system of the Changjiang Estuary region .