Maine Coastal Bathymetry 100K

BATHYM100 contains bathymetry lines for the Gulf of Maine at a scale of 1:100,000 showing depth in 10 meter intervals. This dataset was developed by the Maine Geological Survey using USGS 30 X 60 minute series topographic-bathymetric maps. Bathymetric contours are coded with depth in feet (10 meter interval mean lower low water datum) Spatial topology varies from good to poor.BATHYM100数据集包含缅因湾（Gulf of Maine）1:10万比例尺的水深测量线，以10米间隔表征水深。该数据集由缅因州地质调查局基于美国地质调查局（USGS）30×60分幅系列地形-水深地形图编制而成。水深等值线以英尺标注水深，基准为10米间隔对应的平均低低潮面。数据集的空间拓扑质量良莠不齐。