GSNI Tellus Regional Airborne Geophysical Survey - Magnetic Grids

Data were processed using Geosoft Oasis Montaj and supplied in three formats.

* Geosoft Grid
* ESRI Geodatabase
* ASCII Grid

Note that the presence of ‘Minc from V3 gdb, cellsize 35m’ in the grid filename indicates that the grid was generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m.

The following file are provided:

##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES
TMI Magnetic Residual generated using the Minimum Curvature interpolation method, from data contained within the MAG_RES channel of the Magnetics V3 database, using a cell size of 35m.
##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES_GRD_s
A sunshade of the TMI Magnetic Residual generated using the Minimum Curvature interpolation method, from data contained within the MAG_RES channel of the Magnetics V3 database, using a cell size of 35m. Shading parameters (inclination = 45 degrees, declination = 0 degrees).

##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES – psg
Pseudogravity generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m
##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - psg_GRD_s
A sunshade of the Pseudogravity generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m. Shading parameters (inclination = 45 degrees, declination = 0 degrees).

##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - psg – TiltD
Pseudogravity – Tilt Derivative generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m.
##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - psg - TiltD_GRD_s
A sunshade of the Pseudogravity – Tilt Derivative generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m. Shading parameters (inclination = 45 degrees, declination = 0 degrees).

##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES – rtp
Reduced to Pole generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m.
##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - rtp_GRD_s
A sunshade of the Reduced to Pole generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m. Shading parameters (inclination = 45 degrees, declination = 0 degrees).

##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - rtp – TiltD
Reduced to Pole – Tilt Derivative generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m.
##TELLUS_Magnetic (Minc from V3 gdb, cellsize 35m) MAG_RES - rtp - TiltD_GRD_s
A sunshade of the Reduced to Pole – Tilt Derivative generated using the Minimum Curvature interpolation method, from data contained within the Magnetics V3 database, using a cell size of 35m. Shading parameters (inclination = 45 degrees, declination = 0 degrees).

Tags: Geology, Geophysics, Magnetics, Tellus
Organization: Geological Survey of Northern Ireland