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Dec06 Nominal Mode Chiara Piccolo University of Oxford

Dec06 Nominal Mode Chiara Piccolo University of Oxford. 26-29 Dec 2006 : mixed NOM and AE mode data. Temperature: - Very different from IG - Stripes at S.Pole. H2O: - Stripes: EQU & S.Pole - High values S.Pole above0.1 mb (possible a-priori influence). HNO3: N. Pole enhancement.

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Dec06 Nominal Mode Chiara Piccolo University of Oxford

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  1. Dec06 Nominal Mode Chiara Piccolo University of Oxford

  2. 26-29 Dec 2006: mixed NOM and AE mode data

  3. Temperature: - Very different from IG - Stripes at S.Pole

  4. H2O: - Stripes: EQU & S.Pole - High values S.Pole above0.1 mb (possible a-priori influence)

  5. HNO3: N. Pole enhancement

  6. NO2: N. Pole mesospheric descent

  7. O3: - Equatorial double peak - N. Pole stratospheric depletion

  8. CH4: Equatorial oscillation

  9. N2O: Equatorial oscillation

  10. Summary of Dec06 Nominal Mode • Temperature: very different from IG • H2O: Stripes at EQU & S.Pole and High values S.Pole above 0.1 mb • HNO3: N. Pole enhancement • NO2: N. Pole mesospheric descent • O3: Equatorial double peak and hint of N. Pole mesospheric enhancement • CH4 and N2O: Equatorial oscillation

  11. Dec06 Middle Atmosphere Mode Chiara Piccolo University of Oxford

  12. 20-21 Dec 2006: MA mode data

  13. Applying nominal microwindows to MA mode data • Retrievals using specialised MA mode microwindows

  14. Temperature: higher values at the poles when using NOM microwindows NOM MWs MA MWs

  15. Forward and reverse pattern when using MA microwindows H2O: Stripes at EQU & S.Pole regions High values S.Pole above 0.1 mb when using NOM mws (a-priori influence), but not when using MA mws NOM MWs MA MWs

  16. HNO3: higher values when using NOM microwindows NOM MWs MA MWs

  17. NO2: higher values when using NOM microwindows in stratosphere (NGT) and more descending in N.Pole region when using MA microwindows MA MWs NOM MWs

  18. O3: no double peak anymore, depletion in stratospheric N.Pole region NOM MWs MA MWs

  19. CH4: Equatorial oscillation still present when using NOM microwindows, not when using MA microwindows NOM MWs MA MWs

  20. Equatorial oscillation present when using NOM microwindow N2O: Equatorial oscillation (on zonal means) not present NOM MWs MA MWs

  21. Summary of Dec06 MA Mode • Temperature: higher values at the poles when using NOM microwindows • H2O: High values S.Pole above 0.1 mb when using NOM microwindows, Forward and reverse pattern when using MA microwindows • HNO3 & NO2: higher values when using NOM microwindows • O3: no double peak anymore, depletion in stratospheric N.Pole region • CH4 & N2O: Equatorial oscillation still present when using NOM microwindows, not when using MA microwindows

  22. H2O microwindows: NOM H2O_0331 1223.750 1226.250 7.5 18.0 H2O_0332 1649.875 1652.875 15.0 66.0 H2O_0333 953.688 956.688 6.0 40.0 H2O_0334 1387.562 1390.500 12.0 70.0 H2O_0335 1391.750 1394.750 12.0 54.0 MA H2O_0401 1650.750 1653.750 18.0 90.0 H2O_0402 1573.188 1576.188 18.0 87.0 H2O_0403 1622.500 1625.500 18.0 0.0 H2O_0404 1576.250 1579.250 18.0 63.0 H2O_0405 1455.375 1458.375 18.0 87.0

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