History of Meteorology 8 (2017) 95 Colonizing the Free Atmosphere: Wladimir Köppen’s ‘Aerology’, the German Maritime Observatory, and the Emergence of a Trans-Imperial Network of Weather Balloons and Kites, 1873-1906 Robert-Jan Wille
[email protected] Utrecht University This article suggests that the meteorological science of ‘aerology’, the global study of the upper air with the help of balloons and kites, emerged most prominently in Imperial Germany in the first decade of the twentieth century as a consequence of trans-imperial networks and field work. Although contemporaries and historians have often demoted aerology to the level of a Hilfswissenschaft to the emerging discipline of atmospheric physics, aerology was a top-down program of investing in scientific infrastructure to jumpstart, on the global stage, what contemporaries such as the Russian-German meteorologist Wladimir Köppen felt as long overdue: a German synoptic meteorology.1 Newly established German weather balloon halls and kite stations became rivals in the field to metropolitan observatories and universities, assimilating data produced by expeditions and field work in general.2 It was thanks to German aerologists, German meteorological stations and the German coordination of simultaneous European weather balloon ascents in the first decades of the twentieth century, that in the 1920s and 1930s both the Norwegian Bergen School and Lewis Fry Richardson were able to attempt 1 Wladimir Köppen, “Die Wechselwirkung zwischen der maritimen und der Landmeteorologie in deren Entwickelung,” Meteorologische Zeitschrift 26 (1909). 2 On the role of stations and field laboratories in the life sciences, see: Robert E. Kohler, Landscapes and Labscapes: Exploring the Lab-Field Border in Biology (Chicago: University of Chicago Press, 2002); Jeremy Vetter, “Rocky Mountain High Science.