Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
San Jose '89-'90M-D152.4 m above ground0.40 km6,570 km
San Francisco '73M-D914.4 m (barometer)1.60 km11,909 km
California CoastM-D609.6 m (barometer)1.60 km6,496 km
LivermoreM-D304.8 m above ground0.53 km7,724 km
San Gregorio-HollisterM-D152.4 m above ground0.53 km9,205 km
Santa Clara ValleyM-D243.8 m above ground0.53 km3,089 km
Coastal California N.M-Dz914.4 m (barometer)1.60 km4,828 km
Coastal California S.M-Dz914.4 m (barometer)1.60 km563 km
San FranciscoM/R-D121.9 m 4.80 km1,033 km
San JoseM/R-D121.9 m 4.80 km5,182 km
Santa CruzM/R-D121.9 m 4.80 km km