Abstract
The purpose of this paper is to model atmospheric pressure effects on surface gravity. Pressure corrections are usually done with the help of an empirical trans fer function called barometric admittance between pressure and gravity both measured locally. We show the validity of this local approach with the help of spectral coherency between air pressure and gravity residuals after subtraction from the superconducting gravimeter observations in Strasbourg (France) of luni-solar tides, polar motion and instrumental drift contributions. We compute the atmospheric surface loading effects using a Green's function formalism and global surface pressure data provided by the European Centre for Medium Range Weather Forecasts (ECMWF). We model a specific oceanic response to atmospheric loading which incorporates interactions between ocean, atmosphere and solid Earth and differs from the classical inverted or non-inverted barometer hypotheses. We investigate the contribution of this global pressure correction in a 3000 day (1987–1996) tidal analysis of the French superconducting gravimeter.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
