Airborne geophysical survey: Missouri Vertical Intensity Magnetics

Magnetic data were collected by instruments that recorded vertical-intensity
values. Locations were determined by using topographic maps. The best way to
represent this data was to create an analog map with contour lines. This
dataset is a representation of the digitized contour lines by following the
contour lines. The values presented are latitude, longitude, and map vertical-
intensity values.
Note: Only selected parts of the original map were digitized to fill in
around the airborne data.

本数据集的磁学数据由记录垂直强度值的仪器采集所得。数据点位通过地形图确定。
对该数据进行可视化的最优方式为绘制带等高线的模拟地图。
本数据集为沿原始等高线数字化得到的等高线数据成果。
本次展示的数据包含纬度、经度以及地图垂直强度值。
备注：仅对原始地图的选定区域进行数字化处理，以补充航空数据周边的空白区域。