System and performance audit of surface ozone, carbon monoxide, methane and carbon dioxide at the global GAW station Izaña, Spain

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Zellwegger, C., Steinbacher, M., Buchmann, B., & Steinbrecher, R. (2020). System and performance audit of surface ozone, carbon monoxide, methane and carbon dioxide at the global GAW station Izaña, Spain. (GAW report, Report No.: 251). World Meteorological Organization (WMO).