The Pallas hill top site is run by the Finnish meteorological institute with methane and carbon dioxide measured continuously on a Picarro G1301 since 2009 and historical measurements back as far as 2004 for methane and 1998 for carbon dioxide.

Tedlar bags are also returned to Royal Holloway for methane concentration and methane carbon isotope analysis.

More information is at: http://en.ilmatieteenlaitos.fi/GHG-measurement-sites#Pallas_Sammaltunturi