Gravity change, geoid change and remaining postglacial uplift of Fennoscandia

• Published in: Terra Nova
• Main Author: Ekman, Martin
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1991
• Subjects: Geology; Fennoscandia; Fennoscandian
• Online Access: http://dx.doi.org/10.1111/j.1365-3121.1991.tb00167.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3121.1991.tb00167.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3121.1991.tb00167.x

ABSTRACT The result obtained hitherto on the Fennoscandian land uplift gravity line indicates that the postglacial uplift process might be more complicated than a pure horizontal flow of mantle (‘Bouguer model’). Simple formulae, valid for a more arbitrary model, are developed for the change of the geoid and for the remaining land uplift. Numerical applications yield a geoid change of about 0.4 mm yr ‐1 and a remaining land uplift of the order of 50 m, but the latter quantity is very difficult to determine with reasonable accuracy.