Airborne geophysical survey: Cove Fort, Utah

Aeromagnetic data were collected along flight lines by instruments in an
aircraft that recorded magnetic-field values and locations. In the earlier
days of surveying, the only way to represent this data was to generate an
analog map with contour lines. This dataset is a representation of the
digitized contour lines either by following the lines or by choosing the
intersection of the contour and flight-line to create a value of the magnetic
field. The values presented are latitude, longitude, and map magnetic-field
values.

航空磁力数据由搭载于航空器的仪器沿飞行航线采集，同步记录磁场数值与位置信息。在早期航空磁测工作中，对此类数据进行可视化的唯一方式是制作带有等值线的模拟地图。本数据集为对原模拟等值线地图的数字化成果，其数字化过程可通过两种方式实现：一是沿等值线进行采样，二是选取等值线与飞行航线的交点以获取对应的磁场数值。本次数据集所提供的参数包含纬度、经度以及地图磁场数值。