1. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 1 Oxford Work  Update L2 OFL Error Analyses  Comparison of OXF v ESA RR27 L2 data  Long Term Trends in MIPAS data Anu Dudhia University of Oxford

2. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 2 Update L2 OFL Error Analysis

3. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 3 Error analyses derived from microwindow selection are provided on web-page http://www.atm.ox.ac.uk/group/mipas/err/ Page now updated (8Oct07) Only 2 minor modifications (from QWG12)  SPREAD error (2nd deriv) reduced from 2% to 0.2%  GAIN error (0th deriv) reduced from 2% to 1% for C and D bands L2 Error Analyses

4. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 4 OldNew H2O Errors

5. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 5 Comparison of OXF and ESA RR27 Data

6. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 6  Oxford processor MORSE uses same L1B/microwindows as ESA data, but optimal estimation algorithm.  Oxford emphasis on long-term trends: processing 1 day/month, global coverage, preferably NOM mode. (also, since June 2007, routinely process all MIPAS NOM/UTLS1/MA mode data http://www.atm.ox.ac.uk/group/mipas/L2OXF /  ESA emphasis on processing validation data: usually UTLS1 and limited area coverage - ‘orthogonal’ to Oxford requirements  Run MORSE to compare with ESA data from 14Jun05 and 22Jun05 (as shown at QWG13)

7. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 7

8. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 8

9. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 9 ESA O3 17191 (14JUN06)

10. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 10 OXF O3 17191 (14JUN06)

11. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 11 OXF-ESA O3 17191 (14JUN06)

12. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 12 pT Comparisons

13. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 13 H2O Comparisons

14. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 14 O3 Comparisons

15. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 15 HNO3 Comparisons

16. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 16 CH4 Comparisons

17. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 17 N2O Comparisons

18. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 18 NO2 Comparisons

19. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 19 OXF-ESA Comparisons: Summary pT: agreement with ± 2K, 5% p H2O: 40-60km -0.5ppmv, >66km +1ppmv O3: <30km Oscillations in OXF data, 40-66km -5% HNO3: 30km +10% CH4: 66km +50% N2O: 30-55km +5% NO2: 25-55km within 5%, <20km +50%, <60km - 50%

20. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 20 Long Term Trends Anu Dudhia University of Oxford

21. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 21 MIPAS Operations 2005

22. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 22 MIPAS Operations 2006

23. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 23 MIPAS Operations 2007

24. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 24 Temperature

25. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 25 H2O

26. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 26 O3

27. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 27 HNO3

28. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 28 CH4

29. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 29 N2O

30. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 30 NO2

31. Atmospheric, Oceanic & Planetary Physics, University of Oxford A Dudhia MIPAS QWG14 Bologna 9-11 Oct 2007 Page 31 Species100mb10mb1mb0.1mb T  0.1K  0.2K +0.7K+1K H2O-10%  1% -10% O3-3%+5%+3%+0-10% HNO3-2%+5-10%-5% CH4  2% +5%+0-10% N2O+5% +0-10% NO2+10%  15% Summary: OXF RR27-FR17