Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
San Francisco ARMS '58M-Dz152.4 m above ground1.60 km3,540 km
San Francisco '73M-D914.4 m (barometer)1.60 km11,909 km
Clear Lake '95M-D304.8 m above ground0.45 km10,058 km
Napa ValleyM-D243.8 m above ground0.53 km15,900 km
N. Great Valley SouthM-Dz762 m (barometer)1.60 km9,253 km
N.G.V. - Wilbur SpringsM-Dz1524 m (barometer)1.60 km1,287 km
N.G.V. - Mt. VacaM-Dz1372 m (barometer)1.60 km965 km
SacramentoM/R-D121.9 m 4.80 km5,005 km
Sacramento 2011M-D244 m above ground0.80 km km
Santa RosaM/R-D121.9 m 9.60 km1,646 km