Airborne geophysical survey: Antler Peak '47 and '74, Nevada

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.航空磁测数据由航空器搭载的仪器沿飞行航线采集，同步记录磁场强度数值与位置坐标。在早期航空磁测勘测阶段，此类数据仅能通过生成带有等值线的模拟地图进行展示。本数据集是对数字化航磁等值线的采样重构：既可以沿等值线轨迹进行采样，也可通过选取等值线与飞行航线的交点来获取对应的磁场强度数值。数据集包含纬度、经度与航磁场强度数值。