Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
SE Alaska (Granite Fiords)M-Dz1828.8 m (barometer)1.61 km2,736 km
KetchikanM-Dz1828.8 m (barometer)1.61 km8,530 km
PetersburgM-D304.8 m above ground1.61 km13,921 km
CraigM-D304.8 m above ground1.61 km9,222 km
Northwest CraigM-D304.8 m above ground1.61 km1,014 km
Southern CraigM-D304.8 m above ground1.61 km563 km
Annette IslandM-D60.96 m above ground0.40 km998 km
Bradfield CanalM/R-D121.92 m 9.66 km716 km
CraigM/R-D121.92 m 9.66 km1,497 km
Dixon EntranceM/R-D121.92 m 9.66 km266 km
KetchikanM/R-D121.92 m 9.66 km1,609 km
PetersburgM/R-D121.92 m 9.66 km1,473 km
Prince RupertM/R-D121.92 m 9.66 km185 km