Directory Contains Magnetic, Radiometric and EM data from the Senja island, Troms county.

NGU Report 2014.039 describes acquisition, quality, processing and presentation of all data from Senja (2012, 2013 and 2014).

Magnetic data are presented as:
	Total magnetic field (Senja_MAG_Tot)
	Magnetic Vertical Gradient (Senja_MAG_VG)
	Magnetic Tilt Derivative (Senja_MAG_TD)
	Geosoft XYZ-file with instrument height, altitude above sea level, IGRF value  and magnetic anomaly.

Radiometric data are presented as:
	Radiometric Ternary Map  (Senja_RAD_Ternary)
	Radiometric Total Count (Senja_RAD_TotalCount)
	Potassium ground concentration in % (Senja_RAD_Potassium)
	Uranium ground concentaration in ppm (Senja_RAD_Uranium)
	Thorium ground concentration in ppm (Senja_RAD_Thorium)
	Geosoft XYZ-file of instrument height, Uranium (ppm), Thorium (ppm) and potassium (%) ground concentrations.

ElectroMagnetic data are presented as Calculated Apparent Resistivity 
from half space model, In phase and Quadrature Components:
	880 Hz Coplanar (Senja_EM_Res880)
	980 Hz Coaxial  (Senja_EM_Res980)
	6600 Hz Coplanar  (Senja_EM_Res6600)
	7001 Hz Coaxial  (Senja_EM_Res7000)
	34000 Hz Coplanar  (Senja_EM_Res34000)
	Gesoft XYZ-file with Instrument height, In phase and quadrature readings and aparent resistivity for all frequencies. 
		Readings of 880 Hz in phase is not presented due to low signal to noise ratio. 

For more information, contact: jan.ronning@ngu.no