VISITORS: Effective 21 July 2014, Visitor Center Security will no longer accept IDs from some US states for site access. Please see security procedures for details.

Tropospheric Chemistry: Instruments

MABEL CO2 instrument

MABEL CO2 instrument.

MABEL (Mobile Atmosphere-Biosphere Environmental Laboratory) CO2 (Carbon Dioxide)

Principle of the Measurement

Non-dispersive IR absorption

Species Measured


Time Response

1 second


LiCor Li-7000 (modified)

Field Projects

  • NEAQS 2002
  • NEAQS-ITCT 2004
  • Mesa 2005
  • TexAQS 2006
  • Erie 2007
  • ICEALOT 2008
  • NORAA 2008
  • CalNex 2010


Brian Lerner

Key Publications

Lerner, B.M., P.C. Murphy, E. J. Williams, Field Measurements of Small Marine Craft Gaseous Emission Factors during NEAQS 2004 and TexAQS 2006, Environ. Sci. Technol., 43(21), 8213-8219, doi:10.1021/es901191p, 2009.