Andersen made extensive studies of ice movements and climatic changes in the Antarctic, and was all his life a central Quaternary geologist with studies in Norway, North and South America (Chile), Antarctica (1979, 1980 and 1985), and New Zealand.[1][2][3]
^Kaplan, Michael R.; Schaefer, Joerg M.; Denton, George H.; Barrell, David J. A.; Chinn, Trevor J. H.; Putnam, Aaron E.; Andersen, Bjørn G.; Finkel, Robert C.; Schwartz, Roseanne; Doughty, Alice M. (2010). "Glacier retreat in New Zealand during the Younger Dryas stadial". Nature. 467 (7312): 194–197. doi:10.1038/nature09313. PMID20829791.