Atmospheric tide obtained by the microbarograph developed at the Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences

The air pressure variations due to lunisolar effects cause a part of the deformation of the Earth and therefore directly and indirectly influence several geodynamical phenomena. For a better understanding of these effects a microbarograph of high sensitivity was developed at the Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences in 1991. In this paper the construction of the instrument, the calibration method are described and the results of the measurements are presented.