Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Johnson CityM/R-D121.92 m 4.83 km5,123 km
Winston-SalemM-Dz609.6 m (barometer)1.61 km8,208 km
Johnson CityM-D304.8 m above ground1.00 km3,170 km
Winston SalemM/R-D121.92 m 4.83 km5,123 km