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Profile Retrieval

Profile Retrieval. Yuk Yung – PI Xun Jiang – Co-I* Collaborators – Sally Newman (Caltech), Elva Kuai * (JPL), Ed Olsen (JPL ), Susan Kulawik (JPL) Charles Miller (JPL), Vijay Natraj (JPL) , Brian Connor (NZ), Fai Li (Caltech), Run -Lie Shia (Caltech).

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Profile Retrieval

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  1. Profile Retrieval Yuk Yung – PI Xun Jiang – Co-I* Collaborators – Sally Newman (Caltech), Elva Kuai* (JPL), Ed Olsen (JPL), Susan Kulawik (JPL) Charles Miller (JPL), Vijay Natraj(JPL), Brian Connor (NZ), Fai Li (Caltech), Run-Lie Shia (Caltech) OCO-2 Science Team Meeting 16-17 Feb 2012 Pasadena

  2. A Year of CO2 Measurements at Caltech, Palos Verdes, and Mt. Wilson (CARB)

  3. Information Theory Analysis for TCCON measurements Sa(i, i) = (3%)2 Noise=max(Tr)/snr (/ppm)

  4. Spectroscopic Parameters • 0 = 6243.9 cm-1 •  = 0.02 cm-1 • S = 1.5310-23 cm •  = 7.510-5 mbar cm-1

  5. Transmittance and its Jacobian for one absorption line with broadening CJ.dat.in CJ.dat.in

  6. Transmittance and reflectance and their Jacobianfor one absorption line with broadening CJ.dat.in CJ.dat.in

  7. Thanks • Kuai et al. 2012, JQSRT, in review • Shia et al. 2012, in preparation • Jiang et al. 2012, in preparation • JPL, AIRS, OCO-2, Dave Crisp, John Trauger, Jack Margolis, Linda Brown

  8. Extra Slides

  9. Motivation for profile retrieving of CO2 • Over-prediction of the annual-mean midday vertical gradients in most current model lead to miss-interpretation of carbon uptake in northern lands and tropical forests [Stephen et al., 2007, Sarrat et al., 2007] • Boundary layer CO2v.s. XCO2 [Keppel-Alekset al., 2011]

  10. Profile comparison 2004/07/12 2004/07/15 2004/08/02 2008/05/12 Park falls: Lamont: 2009/01/30 2009/07/31 2009/08/02 2009/08/03 2010/07/18

  11. Column comparison Park Falls and Lamont RMS = 0.50 ppm Wunch, et al., 2011 Bias: -1.4% -1.1% Precision: 0.13% 0.25%

  12. Total Carbon Column Observing Network (TCCON) • Ground-based FTS • Direct solar spectra in NIR. • Column-averaged abundance of CO2, CH4, N2O, HF, CO, H2O, and HDO • Validation resource for satellite measurements (OCO, GOSAT, SCIAMACHY,……)

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