Directory Contains Magnetic and Radiometric data from the Gratangen and Sørreisa area, Troms county.

NGU Report 2015.011 describes acquisition, quality, processing and presentation of the data.

Magnetic data are presented as:
	Total magnetic field (Stitch_Mag_Gratangen_Sørreisa_miclev_mag)
	Magnetic Horizontal Gradient (Gratangen_Sørreisa_HG_miclev_mag)
  	Magnetic Vertical Gradient (Gratangen_Sørreisa_VG_miclev_mag)
	Magnetic Tilt Derivative (Gratangen_Sørreisa_TI_miclev_mag)
  A 5x5 convolution filter was applied to smooth the resulted magnetic grids (See in folder Conv_5x5)
  
Geosoft XYZ-file with magnetic anomaly, IGRF value, instrument height and altitude above sea level.
  	Gratangen_Magnetics.XYZ
  	Sørreisa_Magnetics.XYZ

Radiometric data are presented as:
	Radiometric Ternary Map  (Stitch_Rad_Gratangen_Sørreisa_Ternary_Normal_dist)
	Radiometric Total Count (Stitch_Rad_Gratangen_Sørreisa_miclev_TC_C)
	Potassium ground concentration in % (Stitch_Rad_Gratangen_Sørreisa_miclev_K_C)
	Uranium ground concentaration in ppm (Stitch_Rad_Gratangen_Sørreisa_miclev_U_C)
	Thorium ground concentration in ppm (Stitch_Rad_Gratangen_Sørreisa_miclev_Th_C)
  A 3x3 convolution filter was applied to smooth the concentration grids (See in folder Conv_3x3)  
  
Geosoft XYZ-file of Unanium, Thorium and potassium ground concentrations.
  	Gratangen_Radiometrics.XYZ
  	Sørreisa_Radiometrics.XYZ
  
For more information, contact: jan.ronning@ngu.no