Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
StonyfordM-Dz2134 m (barometer)1.60 km1,287 km
Clear Lake '72M-Dz1372 m (barometer)1.60 km1,680 km
San Francisco '73M-D914.4 m (barometer)1.60 km11,909 km
Clear Lake '85M-D304.8 m above ground0.80 km933 km
Clear Lake '95M-D304.8 m above ground0.45 km10,058 km
YorkvilleM-D152.4 m above ground0.80 km5,027 km
Ukiah 2009M-D304.8 m above ground0.80 km12,311 km
N.G.V. - Wilbur SpringsM-Dz1524 m (barometer)1.60 km1,287 km
North Coastal AreaM-Dz152.4 m above ground0.80 km2,414 km
North Coastal Area SEM-Dz152.4 m above ground0.80 km563 km
North Coastal ExtensionM-Dz152.4 m above ground0.80 km241 km
Santa RosaM/R-D121.9 m 9.60 km1,646 km
UkiahM/R-D121.9 m 9.60 km2,441 km