Magnetic data grids of the Northern Vosges, surveys EOST2008 and GPR2015.

Grid computation and details are explained in Gavazzi et al., 2019 [1] and exploited in Bertrand et al., [2].
This file contains non-null grid elements.

PARAMETERS
Format                :    ASCII
Number of elements    :     86902
Grid cell size        :    125 m

FIELDS
- LON    :    grid cell WGS84 longitude (°East);
- LAT    :    grid cell WGS84 latitude (°North );
- ALT    :    grid cell altitude amsl (m) - this grid was computed at a constant altitude of 1400 m above mean sea level;
- TMI    :    total magnetic intensity anomaly (nT);
- RTP    :    (double) reduction to the pole of the TMI (nT) - mean regional field direction Inclination=1.60°, Declination=64.14°;
- DV    :    vertical derivative of the RTP at order 0.5 (nT/m);
- DH    :    horizontal derivative of the RTP at order 1 (nT/m);

[1] Gavazzi, B., Bertrand, L., Munschy, M., Mercier de Lépinay, J., Diraison, M. & Géraud, Y. (submitted). On the use of aeromagnetism for geological interpretation part I: comparison of 1 scalar and vector magnetometers for aeromagnetic surveys and an equivalent source 2 interpolator for combining, gridding and transform fixed altitude and draping 3 datasets, Journal of Geophysical Research: Solid Earth (2019).

[2] Bertrand, L., Gavazzi, B., Mercier de Lépinay, J., Diraison, M., Géraud, Y. & Munschy, M. (submitted). On the use of aeromagnetism for geological interpretation part II: geological interpretation on outcropping basement rocks for geothermal energy prospection, Journal of Geophysical Research: Solid Earth (2019).