Airborne geophysical surveys

Survey name	Type	Altitude	Spacing	Flight line distance
Norfolk	M/R-D	121.9 m	4.80 km	4,887 km
Offshore E. Coast Tie Lines	M-D	300 m (barometer)	-9999.00 km	185,000 km
Southeast Virginia	M-Dz	152.4 m above ground	3.20 km	9,173 km