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Non-LTE Modeling of the Stratosphere of Jupiter

Investigating non-LTE cooling rates in Jupiter's stratosphere using C2H6, C2H2, and CH4 models and analyzing the impact of high and low collision cases on heating rates. Examining additional heating mechanisms such as aerosol and gravity wave dissipation.

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Non-LTE Modeling of the Stratosphere of Jupiter

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  1. Non-LTE Modeling of the Stratosphere of Jupiter Zhang, X., West, R. A., Shia, R. L., Yelle, R. V., Nixon, C. A., Orton, G. S., and Yung Y. L. AGU 2011

  2. Why NON-LTE López-Puertas & Taylor (2001)

  3. Model Atmosphere C2H6 C2H2 CIRS data (Nixon et al., 2007)

  4. Model Atmosphere T CH4 Yelle (2001) Nixon et al. (2007)

  5. 2D cooling spatial

  6. Spectral Cooling Rate (in LOG10) H2-H2&H2-He C2H2-C2H6 CH4 Units: (erg/g/s/cm-1) 10μm ~5μm

  7. Source Functions C2H6 CH4 C2H2

  8. Non-LTE Cooling Rate CH4 Total C2H2-C2H6 H2-H2&H2-He

  9. Non-LTE C2H2-C2H6 Spectra LTE High Collision Low Collision

  10. Non-LTE CH4 Spectra LTE High Collision Low Collision

  11. Heating Rate 3.3 NLTE Aerosol 1.7 1.3 LTE Cooling 1.1 7.7 2.3 Heating

  12. Low Collision Case: T sensitivity

  13. Low Collision Case: T sensitivity CIRS Test Seiff (1998)

  14. Low Collision Case: T sensitivity CIRS Test Seiff (1998)

  15. Other Heating Mechanisms? Aerosol Heating at 3.4 micron NIR band? Gravity Wave Dissipation? Young et al. (2005) Bellucci et al. (2009)

  16. Ave Heat/cool compare • Slope • Thermosphere compare

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