Airborne geophysical survey: Albuquerque East, New Mexico

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.

航空磁测数据由搭载于航空器的磁测仪器沿飞行航线采集，同步记录磁场强度与位置坐标。在早期勘探阶段，此类数据仅可通过绘制带等值线的模拟地图进行展示。本数据集系对数字化等值线的重构产物，其生成方式分为两种：一是沿等值线轨迹进行采样，二是选取等值线与飞行航线的交点以获取对应磁场强度数值。本次公开的数据包含纬度、经度与航磁强度三项参数。