Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
CentervilleM/R-D121.9 m 9.60 km2,697 km
Des MoinesM/R-D121.9 m 9.60 km2,666 km
Southeast IowaM-A304.8 m above ground1.60 km14,886 km
Southern IowaM-A609.6 m (barometer)1.60 km8,545 km