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Group photo 2017

Chemical Aeronomy in the Mesosphere and Ozone in the Stratosphere (CHAMOS) is an on-going science collaboration focusing on energetic particle precipitation and related atmospheric effects. Originally, it was started by scientist from Finnish Meteorological Institute (FMI) and Sodankylä Geophysical Observatory (SGO) back in 1998 as an response to European Space Agency's Announcement of Opportunity related to the Global Ozone Monitoring by Occultation of Stars (GOMOS) instrument on board the Envisat satellite.

The collaboration has now continued for more than 15 years and produced over 70 peer-reviewed scientific publications. Today there are 24 people in the CHAMOS group, and five more institutes have joined FMI and SGO (British Antarctic Survey, University of Otago, EISCAT Scientific Association, Institute for Space-Earth Environmental Research, The University Centre in Svalbard).

Over the years, CHAMOS work has been funded by the Academy of Finland, the European Union, New Zealand Marsden Fund, and National Environmental Research Council (UK).