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  3. Magnetic anomaly
  4. Aeromagnetic surveys
  5. New Hampshire

Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Glens FallsM/R-D121.9 m 10.00 km796 km
Lake ChamplainM/R-D121.9 m 10.00 km906 km
LewistonM/R-D121.9 m 9.60 km2,494 km
New Hampshire WestM-Dz701 m (barometer)0.80 km3,942 km
Southwest New HampshireM-Dz670 m (barometer)0.80 km7,422 km
North-central N.H. '66M-Dz1676 m (barometer)0.80 km2,896 km
North-central N.H. '68M-Dz1524 m (barometer)0.80 km2,502 km
Central New Hampshire '68M-Dz1524 m (barometer)0.80 km1,561 km
Sherbrooke-Lewiston '81 W.M-D91 m above ground0.80 km260 km
Central New HampshireM-Dz914.4 m (barometer)0.80 km5,132 km
PortlandM/R-D121.9 m 8.00 km989 km
Vermont RegionalM-Dz1219 m (barometer)3.20 km1,190 km
Glens Falls "B" '83M/R/V-D91 m above ground0.80 km6,775 km