Results
of airborne CO2 and CO observations from the NSF/NCAR C-130 platform
during the Gulf
of Tehuantepec Experiment
(GOTEX 2004) and the Airborne component of the Carbon in the Mountains
Experiment (ACME 2004) will be
presented. A modified commercial vacuum ultraviolet fluorescence instrument
monitored CO mixing ratios. CO measurements were used to help identify air
masses recently influenced by combustion emissions. CO2 mixing
ratios were measured using a pressure- and temperature-controlled LI-COR 6252
analyzer. Control of time response
allowed operation of the CO2 instrument in two modes for application
to either low altitude eddy covariance or higher altitude mixing ratio
measurements. Performance will be assessed, including accuracy estimates
derived from intercomparison activities.
Author: Campos, T., S. Shertz, S. Hall, B. Stephens, and L. Husted (campos at ucar dot edu)
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