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2010/04/27 data

2010/04/27 data. MPR data, Courtesy of Dr. Kevin Knupp. Cloud. Cloud. No data. 318. 302. Note this high. Almost cutoff low. 12Z 4/26 ~ 00Z 4/30, 100-1000hpa. Note the starting time. NAM RH, pressure-time cross section above HSV. lat:34.73, long: -86.65. http://nomads.ncdc.noaa.gov/.

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2010/04/27 data

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  1. 2010/04/27 data

  2. MPR data, Courtesy of Dr. Kevin Knupp

  3. Cloud Cloud No data 318 302

  4. Note this high Almost cutoff low

  5. 12Z 4/26 ~ 00Z 4/30, 100-1000hpa Note the starting time NAM RH, pressure-time cross section above HSV lat:34.73, long: -86.65 http://nomads.ncdc.noaa.gov/

  6. 60m/s=216km/hour NAM wind speed above HSV The direction of the axis is north-south. Subtropical jet

  7. Nov. 4, 2010 case

  8. 11/3 11/4 11/5 11/6

  9. 1. Comparison of the CMAQ ozone simulation and the lidar measurement for a STE event CMAQ O3 The CMAQ model is able to capture most of the tropospheric ozone variability caused by this STE event [manuscript in prep., Arastoo et al.] and simulates extremely well the subsiding tongue-shaped ozone layer. Lidar O3 Sonde

  10. Low PBL O3 due to the precipitation on 11/3 and 4, 298 There high RH looks wrong Also, these should be much lower (<5%), possibly interfered by the high RH at lower alt.

  11. No high surface ozone, here the high index (e.g., later than 11/9) is due to PM, not ozone (check ‘ozone peak and ‘Particle peak’)

  12. 300hpa 12Z http://www.spc.nssl.noaa.gov/obswx/maps 11/3 11/4 11/5 11/6

  13. RH and isotachs

  14. Note the very broad low RH, different with other cases

  15. http://cimss.ssec.wisc.edu/mesoscale_winds/archive/05Nov10/

  16. Apr. 5, 2011 case

  17. Apr. 2 ozonesonde 3/31 GOME 4/1 GOME tropopause

  18. Sonde 4/5 sonde (lower tropopause) 4/2 sonde Low RH, likely strato O3

  19. 3/26 sonde 4/2 sonde 3/26 RH has problem. 4/5 sonde 4/9 sonde

  20. Guess Sunrise ~6:30LT Sunset ~19:15LT Also strato O3 FT-to-PBL transport after sunset 11 increase is a evidence of STE influence on surface? EPA Daily surface max 52ppbv 63ppbv 63ppbv

  21. GOME total ozone 4/5 GOME 4/6 GOME

  22. OMI http://toms.gsfc.nasa.gov/ozone/ozone_v8.html OMI can be also downloaded here http://www.temis.nl/protocols/o3col/o3col_menu_omi.php?Year=2011&Month=04&Day=03

  23. 300hpa 12Z 4/4 4/3 4/5 4/6

  24. 500-hpa contour 4/5 12:00UTC 4/6 12:00UTC

  25. 4/5 12Z

  26. Profiler showing the jet

  27. Profiler (no 4/7 data)

  28. Cold front pass SI STE air May reach ground 298 Rain

  29. 4/4 4/5 Rain 4/6 4/7

  30. 2011 8/29 STE

  31. 8/20 and 8/27 sonde Note there is no ceilometer data for 8/25 26 ozone curtain.

  32. Should be summer, not autumn The summer theta for STT is higher, averagely peaked at 315~330K, see Wernli 2002. 326 318 314

  33. Low tropopause, STE before the lidar observation

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