Wegener nwetara ọnọdụ dị ka onye na-ahụ maka ihu igwe na German Naval Observatory (Deutsche Seewarte) wee kwaga na Hamburg na nwunye ya na ụmụ ha nwanyị abụọ. Na 1921 a họpụtara ya onye nkụzi dị elu na Mahadum ọhụrụ nke Hamburg. Site na 1919 ruo 1923 Wegener rụrụ ọrụ ọsụ ụzọ na iwughachi ihu igwe nke oge gara aga (nke a maara ugbu a dị ka "paleoclimatology"), na-arụkọ ọrụ ọnụ na Milutin Milanković, na-ebipụta Die Klimate der geologischen Vorzeit (<unk>Climates of the Geological Past<unk>) ya na nna nwunye ya, Wladimir Köppen, na 1924.
nwunye ya na ụmụ ya nwaanyị abụọ