Dysthe took the
cand.real. degree at the
University of Bergen in 1962, and the
dr.philos. degree in 1972. He became professor in
applied mathematics at the
University of Tromsø in 1972, and at the University of Bergen from 1992 to retirement in 2007. He has been a visiting scholar at the
University of Cambridge, the
Scripps Institution of Oceanography and the
Stanford University. He was a member of the
Norwegian Academy of Science and Letters. Dysthe died on 30 July 2023, at the age of 85. ==References==