Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
San Francisco BayM-Dz304.8 m above ground1.60 km1,802 km
San Francisco '73M-D914.4 m (barometer)1.60 km11,909 km
San Francisco Bay '95M-D149.4 m above ground0.53 km5,310 km
Coastal California N.M-Dz914.4 m (barometer)1.60 km4,828 km
San FranciscoM/R-D121.9 m 4.80 km1,033 km