USGS Geoscience Data Catalog
Additional USGS Geoscience data can be found by geographic location or by publication series.
Airborne survey specifications These items are constant for the entire survey Project number: 5039 Project name: Granite Lake, Colorado Survey flown by: HighLife/QEB Helicopters, Inc. Survey flown for: DOE Grand Junction Office Approx. no. of line miles: 401 Survey height: 400 ft Altitude method: Draped over terrain with towed sensor Flight-line spacing: 0.25 mi Flight-line direction: NE-SW Aircraft used: Aerospatiale SA 315 Lama Airport - arrival: unknown Airport - departure: unknown Magnetometer used: Geometrics G-803 Sensor tow distance: unknown
Each record contains the following 11 attributes: No abbrev.name contents 1 line_no flight line number 2 directn flight line direction, azimuth degrees from north (integer) 3 longitud longitude (decimal degrees) 4 latitude latitude (decimal degrees) 5 year year flown (integer) 6 jul_day Julian day flown (integer) 7 fiducial fiducial number (integer) 8 radar radar altimeter reading above ground (feet) 9 barom altitude above mean sea level (feet) 10 totmag corrected magnetic value (nT) 11 resmag residual magnetic value (nT)
Each line contains data in the following format, beginning with line 1(no header included): line_no I5 directn I4 longitud F11.4 latitude F9.4 year I5 jul_day I4 fiducial I7 radar F8.1 barom F8.1 totmag F9.2 resmag F9.2, 1X
Each line contains data in the following format, beginning with line 1 (no header included): line_no I5 directn I4 longitud F11.4 latitude F9.4 year I5 jul_day I4 fiducial I7 radar F8.1 barom F8.1 totmag F9.2 resmag F9.2, 1X