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).

Data and Resources

Additional Info

Field Value
Creation Date November 19, 2018, 16:23 (UTC)
Topic Category
  • Geoscientific Information
  • Imagery / Base Maps / Earth Cover
Lineage

Data were processed using Geosoft Oasis Montaj and supplied in three formats. 1. Geosoft Grid 2. ESRI Geodatabase 3. 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.

Frequency of Update Not Planned
Contact Name Alex Donald
Contact Email alex.donald@economy-ni.gov.uk
Additional Information

Information on survey, processing and data conditioning can be found in the following reports:

A Guide to the Tellus Data edited by Young, M.E. and Donald, A.W. can be downloaded at http://nora.nerc.ac.uk/id/eprint/509171/

Beamish, D.; Cuss, R.J.; Lahti, M.; Scheib, C.; Tartaras, E.. 2006 The Tellus airborne geophysical survey of Northern Ireland : final processing report. Nottingham, UK, British Geological Survey, 74pp. (IR/06/136) (Unpublished) http://nora.nerc.ac.uk/7427/

Lahti, M.; Beamish, D.; Cuss, R.J.; Williams, J.. 2007 Deculturing of the Northern Ireland Tellus magnetic data. Nottingham, UK, British Geological Survey, 51pp. (IR/07/047) (Unpublished) http://nora.nerc.ac.uk/7570/

Beamish, D.; Cuss, R.J.; Lahti, M.. 2006 The Tellus Airborne Geophysical Survey of Northern Ireland. Phase 1, logistics report. Nottingham, UK, British Geological Survey, 55pp. (IR/06/032) (Unpublished) http://nora.nerc.ac.uk/7184/

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