Airborne geophysical survey: Southwest Wisconsin

Aeromagnetic data were collected along flight lines by instruments in an
aircraft that recorded magnetic-field values and locations. This dataset
presents latitude, longitude, altitude, and magnetic-field values.

航空磁测数据由航空器搭载的测量仪器沿飞行航线采集，仪器同步记录磁场数值与位置信息。本数据集包含纬度、经度、海拔高度以及磁场数值四类数据。