At first he was rather reluctant to leave Leipzig since he feared for the long-term future of the Geophysical Institute there but, once convinced that the work of the Institute would continue, he accepted the Bergen offer.
Sa unang siya ay nag-uurong-sulong sa halip na mag-iwan Leipzig-alala dahil siya para sa long-term hinaharap ng geopisiko Institute doon ngunit, minsan kumbinsido na ang mga gawain ng Institute nais magpatuloy, tinanggap niya ang alok Bergen.