Airborne geophysical survey: Massachusetts Coop '68, Massachusetts

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（aeromagnetic data）由航空器搭载的仪器沿飞行测线采集，该仪器可同步记录磁场强度值与位置信息。本数据集涵盖纬度、经度、海拔高度及磁场强度值四类参数。