Articles | Volume 7, issue 11
https://doi.org/10.5194/amt-7-3623-2014
https://doi.org/10.5194/amt-7-3623-2014
Research article
 | 
05 Nov 2014
Research article |  | 05 Nov 2014

The MOPITT Version 6 product: algorithm enhancements and validation

M. N. Deeter, S. Martínez-Alonso, D. P. Edwards, L. K. Emmons, J. C. Gille, H. M. Worden, C. Sweeney, J. V. Pittman, B. C. Daube, and S. C. Wofsy

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Cited articles

Deeter, M. N.: MOPITT Geolocation Bias Analysis and Corrections, National Center for Atmospheric Research, Boulder, Colorado, United States, available at: http://web3.acd.ucar.edu/mopitt/GeolocationBiasReport.pdf (last access: 7 June 2012), 2012.
Deeter, M. N., Emmons, L. K., Francis, G. L., Edwards, D. P., Gille, J. C., Warner, J. X., Khattatov, B., Ziskin, D., Lamarque, J.-F., Ho, S.-P., Yudin, V., Attie, J.-L., Packman, D., Chen, J., Mao, D., Drummond, J. R., Novelli, P., and Sachse, G.: Evaluation of operational radiances for the Measurements of Pollution in the Troposphere (MOPITT) instrument CO thermal band channels, J. Geophys. Res., 109, D03308, https://doi.org/10.1029/2003JD003970, 2004.
Deeter, M. N., Edwards, D. P., and Gille, J. C.: Retrievals of carbon monoxide profiles from MOPITT observations using lognormal a priori statistics, J. Geophys. Res., 112, D11311, https://doi.org/10.1029/2006JD007999, 2007.
Deeter, M. N., Edwards, D. P., Gille, J. C., and Drummond, J. C.: CO retrievals based on MOPITT near-infrared observations, J. Geophys. Res., 114, D04303, https://doi.org/10.1029/2008JD010872, 2009.
Deeter,M. N., Edwards, D. P., Gille, J. C., Emmons, L. K., Francis, G., Ho, S.-P., Mao, D., Masters, D., Worden, H., Drummond, J. R., and Novelli, P. C.: The MOPITT version 4 CO product: Algorithm enhancements, validation, and long-term stability, J. Geophys. Res., 115, D07306, https://doi.org/10.1029/2009JD013005, 2010.
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Short summary
The MOPITT Version 6 product for carbon monoxide (CO) incorporates several enhancements. First, a geolocation bias has been eliminated. Second, the new variable a priori for CO concentrations is based on simulations performed with the CAM-Chem chemical transport model for the years 2000-2009. Third, required meteorological fields are extracted from the MERRA reanalysis. Finally, a retrieval bias in the upper troposphere was substantially reduced. Validation results are presented.