大区域水深地形图编图处理手段及方法

PROCESSING TECHNIQUES AND METHODS FOR REGIONAL BATHYMETRIC AND TOPOGRAPHIC MAPPING

以1∶300万中国海—西太平洋水深—地形图(北幅)为例,编制大区域小比例尺的水深地形图,需要广泛地收集区域内的水深、地形、地貌等方面的资料,并且对相关资料进行整理、归类,对不同来源的数据进行比对和调整,检验数据的可靠性及精确度,使不同来源及精度的数据合理的融合,共同形成标准的网格数据,再根据编图规范、标准及细则的要求,完成成果图件的编制工作。

The 1∶3 000 000 China Seas-West Pacific bathymetry and topography map（north sheet）,as a regional small-scale map in a huge area,requires extensive data collection of water depth,topography,and others in the region.Relevant data from different sources and channels need to be catalogued,compared,tested and standardized to ensure their reliability and accuracy.The map shall be compiled following the requirement of mapping guide and standard setting up by concerned authorities.