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Ozone Observations Analyses on Eastern Island La Serena, 22 Nov. 2004

Ozone Observations Analyses on Eastern Island La Serena, 22 Nov. 2004. Juan Quintana Dirección Meteorológica de Chile juaquin@meteochile.cl. Presentation:. Introduction (Campaign 2003) Typical ozone sounding at Eastern Island Relevant processes atmospheric observed Conclusions. 1. 3.

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Ozone Observations Analyses on Eastern Island La Serena, 22 Nov. 2004

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  1. Ozone Observations Analyses on Eastern Island La Serena, 22 Nov. 2004 Juan Quintana Dirección Meteorológica de Chile juaquin@meteochile.cl

  2. Presentation: • Introduction (Campaign 2003) • Typical ozone sounding at Eastern Island • Relevant processes atmospheric observed • Conclusions

  3. 1 3 2 4

  4. Climatological Aspects on Eastern Island Climatological Zonal Wind – Spring (Sep-Nov) Anticiclonic Vorticity and Subsidence

  5. Ozone Soundings in Rapanui 1995-2001

  6. Ozonosondes: Esatern Island Period: 1995-2001 1500m

  7. Ozonosondes: Esatern Island Period: 1995-2001 38 Soundings 15 Soundings 15 Soundings 6 Soundings Cluster groups 1, 2, 3 and 4

  8. Campaign 2003: Eastern Island

  9. Conditions Surface 08 to 13 Nov. 2003 Eastern Island Tº Max. Tº Min.

  10. Subtropical Jet Stream (m/s), 200 hPa Day 08 Day 09 Day 10 (m/s) Day 11 Day 12 Day 13

  11. Zonal Wind (27°S-109°W)

  12. Satelital Image GOES 10 (IR)

  13. Sinoptic Configuration08 to 13 Nov. 2003 Geopotencial Height 500 hPa Día 09 Day 08 Día 10 Día 11 Día 12 Día 13 Source: NCEP/NCAR

  14. Potencial Vorticity (PV)

  15. Wind: Zonal - Meridional

  16. Temperature (°C)

  17. Tropospheric Ozone 09-13 Nov 2003 Potencial Temperature 09—13 Nov. 2003

  18. Eastern Island - Tropopause (hPa)

  19. Conclusions • Maximun Ozone Tropospheric is observed during Spring in low troposphere and high troposphere on Eastern Island. • Extratropical cyclones, troughs and Subtropical Jet Stream Intense (>25m/s) favor significant Stratosphere-troposphere exchange (STE). • Marine Boundary Layer (MBL) seems to play a role important in tropospheric ozone maximum.

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