Rudolf Geiger

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Rudolf Geiger
BornAugust 24, 1894
DiedJanuary 22, 1981 (1981-01-23) (aged 86)
NationalityGermany
Known forKöppen–Geiger climate classification
Scientific career
FieldsMeteorologist

Rudolf Oskar Robert Williams Geiger (/ˈɡɡər/; German: [ˈɡaɪɡɐ]; August 24, 1894 – January 22, 1981) was a German meteorologist and climatologist. He was the son of Indologist Wilhelm Geiger and the brother of physicist Hans Geiger. He worked with Wladimir Köppen on climatology, hence the Köppen–Geiger climate classification.