Fennoscandian strain rates from BIFROST GPS: A gravitating, thick-plate approach

• Published in: Journal of Geodynamics
• Main Authors: Scherneck, H.-G., Lidberg, M., Haas, R., Johansson, Jan M., Milne, G.A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2010
• Subjects: Space Geodesy; Recent Crustal Motions; Glacial Isostatic Adjustment; Fennoscandian
• Online Access: https://hal.archives-ouvertes.fr/hal-00634691; https://hal.archives-ouvertes.fr/hal-00634691/document; https://hal.archives-ouvertes.fr/hal-00634691/file/PEER_stage2_10.1016%252Fj.jog.2009.11.005.pdf; https://doi.org/10.1016/j.jog.2009.11.005

International audience The aim of this investigation is to develop a method for the analysis of crustal strain determined by station networks that continuously collect measurements of Global Navigation Satellite Systems (GNSS). The major new ingredient is that we require a simultaneous minimum of the observation error and the elastic and potential energy of a thick elastic and gravitating slab. From this outset the method pursues a general approach not limited to the origin of the deforming process nor to assumptions of lateral homogeniety of the elastic and density structure. One present limitation, however, is the assumption of vertical uniformity in elasticity, which is relevant in the flexure mode.