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

dataset
posted on 18.01.2020 by Bertrand, Lionel, Gavazzi, Bruno, Mercier de Lépinay, Jeanne, Diraison, Marc, Geraud, Yves, Munschy, Marc

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).

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