Heavy UTM32 100 m

Gravity acceleration at the Earth’s surface, i.e. deviation of the predicted gravity value from the reference value 981000 mGal (9.81 m/s²). Approximated, the value corresponds to the relative deviation of a scale in ppm (millionths), i.e. on Sylt (grid value approx. 500 mGal), a person with a mass of 100 kg on a scale calibrated at 9.81 m/s² is weighed about 50 g heavier than on the chunk (grid value 0 mGal). The up-to-dateness of the data stock (2016) corresponds to that of the quasigeoid model GCG2016. The spatial data set is the basis for the representation of the quasigeoid in WMS severity. For this purpose, the gravity grids were sampled with a resolution of 100 m in UTM32 projection. Documentation and data sources Link! Gravity system: International Gravity Standardisation Net 1971 (Morelli et al., 1974) Normal heaviness: no deduction, no consideration of atmospheric influence Level reduction: none Bouguer plate reduction: none Terrain correction (for grid processing only): Spherical calculation of the complete topographic effect (excl. indirect effect of topography on gravity) up to 100 km, digital terrain model with grid width 1" (approx. 25 m), cuboid method (Forsberg, 1984) near 5', outside Tesseroid method (Grombein, 2013) Reduction density/level (for grid processing only): Mainland 2 670 kg/m³/Bathymetry (North Sea, Baltic Sea, Lake Constance) 1 000 kg/m³, 0 m asl. NHN (DHHN92) Grid processing: Reduction of normal heaviness and terrain reduction; Interpolation by collocation (Forsberg et al. 2008), grid width 30“x 45“, resampling to grid width 3.6” x 5.4”; Restoration of terrain reduction and normal gravity in the grid; Projection on UTM32 grid with grid width 100 m Unit: mGal = 10^-5 m/s-2 Offset: 981000 mGal Up-to-dateness: 2016