Total column CO 2 measurements at Darwin, Australia – site description and calibration against in situ aircraft profiles
By N. Deutscher, D. Griffith, G. Bryant, Paul O. Wennberg, Geoffrey C. Toon, R. Washenfelder, G. Keppel‐Aleks, Debra Wunch, Y. Yavin, N. Allen and 7 more. 2010
135 citations recorded by the source corpus.
Abstract. An automated Fourier Transform Spectroscopic (FTS) solar observatory was established in Darwin, Australia in August 2005. The laboratory is part of the Total Carbon Column Observing Network, and measures atmospheric column abundances of CO2 and O2 and other gases. Measured CO2 columns were calibrated against integrated aircraft profiles obtained during the TWP-ICE campaign in January–February 2006, and show good agreement with calibrations for a similar instrument in Park Falls, Wisconsin. A clear-sky low airmass relative precision of 0.1% is demonstrated in the CO2 and O2 retrieved column-averaged volume mixing ratios. The 1% negative bias in the FTS XCO2 relative to the World Meteorological Organization (WMO) calibrated in situ scale is within the uncertainties of the NIR spectroscopy and analysis.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/b0e1bc4981d01f553542d3e0013059d0a60a162c
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Citations in the corpus
- Retrieval of atmospheric CO2 with enhanced accuracy and precision from SCIAMACHY: validation with FTS measurements and comparison with model results (2011, background): “The standard deviation of all cloud free measurements within 1 h amounts typically to 0.1% [Washenfelder et al., 2006; Messerschmidt et al., 2010; Deutscher et al., 2010].”