Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
New Madrid '75 (Jonesboro)M-Dz304.8 m (barometer)1.60 km7,628 km
MemphisM/R-D121.9 m 9.60 km2,951 km
New Madrid '73M-Dz304.8 m (barometer)1.60 km8,880 km
New Madrid 2013M-D203 m above ground0.40 km12,868 km
Poplar BluffM/R-D121.9 m 4.80 km4,889 km