 Aksel C. Wiin-Nielsen

Aksel C. Wiin-Nielsen (17 December 1924 – 26 April 2010) was a Danish professor of meteorology at University of Copenhagen, University of Michigan, Director of the European Centre for Medium-Range Weather Forecasts (ECMWF), and Secretary-General of the World Meteorological Organization (WMO).Wiin-Nielsen's meteorological career began in 1952 at the University of Copenhagen as scientific assistant to Professor Ragnar Fjørtoft.