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AIRS Minor Constituents Focus Group: Turning small residuals into - PowerPoint PPT Presentation

Jan 16, 2024 •204 likes •530 views

AIRS Minor Constituents Focus Group: Turning small residuals into science Turning small residuals into science Wallace McMillan, Juying Warner, Michele McCourt Comer, Larrabee Strow, Sergio De-Souza Machado, Scott Hannon (UMBC/JCET), Mous

  1. AIRS Minor Constituents Focus Group: Turning small residuals into science Turning small residuals into science Wallace McMillan, Juying Warner, Michele McCourt Comer, Larrabee Strow, Sergio De-Souza Machado, Scott Hannon (UMBC/JCET), Mous Chahine, Sung-Yung Lee, Ed Olsen, Luke Chen, Eric Fetzer, Evan Manning, Bill Irion, Brian Kahn (JPL), C. Barnet and Eric Maddy (NOAA/NESDIS), Joel Susskind and John Blaisdell (NASA GSFC) AIRS Science Team Meeting 1 9/2606

  2. GOALS 1. Get as many minor constituent products ready for v5.0 PGE as possible 2. Must have averaging kernels 3. Validate v5.0 PGE minor constituent products 4. Continue minor constituent retrieval development beyond v5.0 PGE AIRS Science Team Meeting 2 9/2606

  3. Summary • CO v5 Standard Product • CH 4 v5 Standard Product • SO 2 v5.0 flag, L1B PGE; retrieval v6.0? • dust v5.0 score, L1B PGE; retrieval v6.0? • H 2 O averaging kernel output in v5 • O 3 averaging kernel output in v5 • CO 2 v5 Support Product • HNO 3 column retrieval for v6? • N 2 O column retrieval for v6? • CFC ’ s little signal apparent in data AIRS Science Team Meeting 3 9/2606

  4. Minor Constituents Talks • Averaging kernels – Maddy (Thurs 8:50AM) • O 3 Irion (Thurs 8:30AM) Divarkarla (Thurs 9:10AM) Pan (Thurs 9:30AM) Tian (Thurs 9:50AM) Chahine (Thurs 10:40AM) Wei (Thurs 11:40AM) Chahine (Thurs 11:40AM) • CO McMillan (Thurs 11:20AM) Wei (Thurs 11:40AM) • CH 4 Xiong (Thurs 1:30PM) • CO 2 Chahine (Thurs 10:40AM) • SO2 Hannon (Thurs 11:00AM) • Dust Machado (Thurs 2:20PM) AIRS Science Team Meeting 4 9/2606

  5. AIRS CO during INTEX-B UMBC W. McMillan (mcmillan@umbc.edu) 2006 Spring AGU Meeting, 25 May 2006

  6. AIRS O 3 during INTEX-B AIRS O 3 during INTEX-B UMBC W. McMillan (mcmillan@umbc.edu) 2006 Spring AGU Meeting, 25 May 2006

  7. AK-CA, 2004 (CH 4 in 350 mb) Jan Jan Mar Xiaozhen Xiong Increase in July, Aug and Sept Feb Apr Sep Nov July July Sep Nov May May Aug Oct Dec June Aug Oct Dec June

  8. Volcanic SO 2 Scott Hannon Volcanic SO 2 20060521 Dobson Units

  9. MODIS sees dust AIRS Dust Score Sergio DeSouza Machado

  10. Minor Constituents: Issues • Verticality – Averaging Kernels – Retrieval dependent – Absolutely critical for modelers to use data!! – Averaging Kernel says how perturbations in each trapezoid affect the retrieval A = (9x9) – Verticality says how AIRS sees the total column (modelers already Beta testing) = sum of the rows of A – CO degrees of freedom = trace(A) – AIRS v5 CO is compatible with what modelers already use (MOPITT)

  11. V5 New Outputs • Standard products – CO_VMR_eff = 9 point vector – CO_eff_press = 9 point vector – CO_verticality = 9 point vector – CO_dof = 9 point vector – CO_rettrap = number of trapezoids in retrieval • Support products – CO_avg_kern = 9x9 matrix – CO_cd = 100 layer columns – CO_lev = AIRS layers, defines trapezoids

  12. CO Update • Optimization (Michele McCourt Comer) – CMDL and MOZAIC profiles with complete averaging kernel convolution – 9 trapezoids (pre-launch used 4) – Optimized damping parameter – v4.0 validated with 2003-2004 profiles • AIRS RMS < 15% on trapezoids • Now evaluating v5 optimization • MOPITT a priori profile

  13. AIRS CO Retrieval Vertical Functions 8 trapezoids 8 trapezoids 4 trapezoids 9 trapezoids

  14. AIRS CO Retrieval Vertical Functions MOPITT matching trapezoids 8 trapezoids 8 trapezoids 4 trapezoids 9 trapezoids Michele McCourt Comer

  15. First Guess CO: AFGL vs. MOPITT Michele McCourt Comer 4 trapezoids 8 trapezoids

  16. First Guess CO: AFGL vs. MOPITT Michele McCourt Comer 4 trapezoids 8 trapezoids

  17. V4.2 -- AFGLfg 4 trapezoids mean(COdof) = 0.47

  18. V4.6.2 -- MOPITTfg 9 trapezoids mean(COdof) = 0.76

  19. V4.2 -- AFGLfg and 4 trapezoids

  20. V4.6.2 -- MOPITTfg and 9 trapezoids

  21. V4.6.2 -- MOPITTfg 9 trapezoids

  22. V4.6.2 -- MOPITTfg 9 trapezoids

  23. V4.6.2 -- MOPITTfg 9 trapezoids

  24. V4.6.2 -- MOPITTfg 9 trapezoids

  25. V4.6.2 -- MOPITTfg 9 trapezoids

  26. V4.6.2 -- MOPITTfg 9 trapezoids

  27. V4.6.2 -- MOPITTfg 9 trapezoids

  28. V4.6.2 -- MOPITTfg 9 trapezoids

  29. V4.6.2 -- MOPITTfg and 9 trapezoids

  30. In situ saw 700 ppbv At 500 mb! V4.6.2 -- MOPITTfg and 9 trapezoids

  31. V4.2 -- AFGLfg and 3 trapezoids

  32. Summary • CO v5 Standard Product • CH 4 v5 Standard Product • SO 2 v5.0 flag, L1B PGE; retrieval v6.0? • dust v5.0 score, L1B PGE; retrieval v6.0? • H 2 O averaging kernel output in v5 • O 3 averaging kernel output in v5 • CO 2 v5 Support Product • HNO 3 column retrieval for v6? • N 2 O column retrieval for v6? • CFC ’ s little signal apparent in data

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