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Table 2 Overview of the instruments for measurement of CO2 and CH4 on the four high-alpine observatories

From: Investigating regional source and sink patterns of Alpine CO2 and CH4 concentrations based on a back trajectory receptor model

Site Greenhouse gas Model Manufacturer Measuring principle
Hoher Sonnblick CO2 Uras14 (2000–2012) G2301 (2012–… ABB Picarro NDIR
Jungfraujoch CO2 G1301 (2010–2011); G2401 (2011.09.16–…) Picarro Picarro CRDS
Plateau Rosa CO2 Ultramat Siemens NDIR
Zugspitze/Schneefernerhaus CO2 HP 6890 modified (2001–2012) Envirosense 3000i (2012–2015) Hewlett Packard/Agilent Picarro GC, FID (CO2 reduced to CH4) CRDS
Hoher Sonnblick CH4 G2301 Picarro CRDS
Jungfraujoch CH4 G1301 (2010–2011) G2401 (2011.09.16–…) Picarro Picarro CRDS
Plateau Rosa CH4 Venus 301 NIRA GC, FID
Zugspitze/Schneefernerhaus CH4 HP 6890 modified (2001–2012) Envirosense 3000i (2012–2015) Hewlett Packard/Agilent; Picarro GC, FID (CH4) CRDS