Airborne geophysical survey: Jackson Hole, Wyoming

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（Aeromagnetic Data）由搭载于飞行器的探测仪器沿飞行航线采集，该仪器可同步记录磁场强度与位置坐标。在早期航空磁测作业中，此类数据仅能通过绘制带等值线的模拟地图实现可视化表达。本数据集为数字化等值线的成果形式，其生成方式包括沿等值线轨迹追踪采样，或选取等值线与飞行航线的交点以获取磁场强度数值。本次公开的数据包含纬度、经度以及实测磁场强度三类数值。