Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Johnson CityM/R-D121.92 m 4.83 km5,123 km
ORNL ARMSM-Dz152.4 m above ground3.22 km14,484 km
Southwest VirginiaM-Dz1524 m (barometer)2.41 km4,828 km