A suite of 2-arcsec surface gravitational maps of the Slovak Republic up to the full gravitational tensor

grav-sr-2arcsec is a suite of 2-arcsec surface gravitational maps of the Slovak Republic in terms of

• the gravitational potential (V),
• the full gravitational vector (V_x, V_y, V_z) in the local north-oriented reference frame (LNOF), and
• the full gravitational tensor in LNOF (V_xx, V_xy, …, V_zz).

The suite was computed from a high-resolution gravity field model of Slovakia developed by Bucha et al. (2016). The maps rely on three sources of gravitational information:

• the Zero-Tide version of the global geopotential model EIGEN-6C4 (Forste, C. et al., 2014) up to degree 2190 (~5 arcmin resolution, ~9 km),
• the expansion of the residual gravitational signal up to degree 21600 in terms of spherical radial basis functions (Bucha et al. 2016) (~30 arcsec, ~950 m), and
• residual terrain modelling (Bucha et al. 2016) (2 arcsec, ~60 m).

An independent validation of grav-sr-2arcsec revealed the standard deviation of 0.789 mGal in terms of the gravity.

Bucha, B., Janak, J., Papco, J., Bezdek, A., 2016. High-resolution regional gravity field modelling in a mountainous area from terrestrial gravity data. Geophysical Journal International 207, 949-966, http://doi.org/10.1093/gji/ggw311