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UTLS Water Vapor and Ozone Measurements in Kunming during Asian Summer Monsoon

UTLS Water Vapor and Ozone Measurements in Kunming during Asian Summer Monsoon. Jianchun BIAN, and Hongbin CHEN LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences Holger Vömel GRUAN Lead Center, Meteorologisches Observatorium Lindenberg, German Weather Service Laura Pan

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UTLS Water Vapor and Ozone Measurements in Kunming during Asian Summer Monsoon

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  1. UTLS Water Vapor and Ozone Measurements in Kunming during Asian Summer Monsoon Jianchun BIAN, and Hongbin CHEN LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences Holger Vömel GRUAN Lead Center, Meteorologisches Observatorium Lindenberg, German Weather Service Laura Pan ACD/NCAR bjc@mail.iap.ac.cn UTLS Workshop, Boulder, 2009-09-21

  2. Outlines • Overview • Large scale conditions • Profiles • Summary

  3. Overview • Asian anticyclone is the dominant circulation feature in the UTLS during NH summer. Asian monsoon is a critical factor in the global troposphere-to-stratosphere transport. It has significant impact on UTLS water vapor budget , and is also an efficient transport pathway for anthropogenic emissions to get into the stratosphere  • Many studies used satellite data and models, which do not provide enough details for characterizing the transport process.There is a debate on the roles of convective and synoptic processes in the TST of water vapor • We are presenting the first in situ measurements of ozone/water vapor inside the anticyclone, the data providing information on the structure and strength of the circulation, complements the large scale satellite observations

  4. Kunming (25.01ºN, 102.65ºE, 1.889 km) H Launch site

  5. Westerly Easterly

  6. Participants • Institute of Atmospheric Physics, CAS • Chinese Academy of Meteorological Sciences • Kunming Climate Observatory, CMA • Holger Vömel • ACD/NCAR

  7. Instruments CFH: H2O RS80: T, RH, P GPS: wind ECC O3 sonde: O3 L-Band: T, RH, P, wind for intercomparison

  8. Summary of sounding information (Aug 7-13, 2009) A total of eleven soundings were launched. *) Sondes launched on the same balloon; A and H demote the Vaisala humicap sensor type of RS80, A-humicap and H-humicap, respectively.

  9. Height at 100 hPa during Aug 6-13, 2009 Asian High center moved westward

  10. Main outflow at so high level? O3: 35 ppbH2O: 2.0 ppmCPT: -80.89ºCBoth extremely low value near 100mb !!! Positive Correlation 0.03

  11. 70mb Super-saturationMulti-layer Due to sub-cell in the neighborhood of Tibet Plateau?

  12. RH 70mb

  13. O3 H2O

  14. O3 0.04 H2O

  15. Summary • For the first time, H2O and O3 in UTLS were measured during Asian summer monsoon • Some preliminary analysis: • some finer and interesting structures • super-saturation and multi-layer in UT • Much more further analysis combined with satellite data and trajectory model is under way Comments and suggestions are welcome! Thank you very much!

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