c d parkinson brecht s w bougher f mills m allen x zhang and y l yung dps 2010 poster 10 4 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
C. D. Parkinson Brecht, S. W. Bougher , F. Mills, M. Allen, X. Zhang and Y. L. Yung PowerPoint Presentation
Download Presentation
C. D. Parkinson Brecht, S. W. Bougher , F. Mills, M. Allen, X. Zhang and Y. L. Yung

Loading in 2 Seconds...

play fullscreen
1 / 18

C. D. Parkinson Brecht, S. W. Bougher , F. Mills, M. Allen, X. Zhang and Y. L. Yung - PowerPoint PPT Presentation


  • 78 Views
  • Uploaded on

Photochemical Distribution of Venusian Sulphur and Halogen Species AND Why Vulcanism cannot be the source for Venusian SO 2 above 80km . C. D. Parkinson Brecht, S. W. Bougher , F. Mills, M. Allen, X. Zhang and Y. L. Yung DPS 2010 (Poster 10.4).

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'C. D. Parkinson Brecht, S. W. Bougher , F. Mills, M. Allen, X. Zhang and Y. L. Yung' - kynton


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
c d parkinson brecht s w bougher f mills m allen x zhang and y l yung dps 2010 poster 10 4

Photochemical Distribution of VenusianSulphurand Halogen SpeciesANDWhy Vulcanism cannot be the source for Venusian SO2 above 80km

C. D. Parkinson

Brecht, S. W. Bougher, F. Mills, M. Allen,

X. Zhang and Y. L. Yung

DPS 2010 (Poster 10.4)

parameter space for possible solutions
Parameter space for possible solutions

Blue shaded area shows parameter space where model predicts SO2

mixing ratios between 0.01 and 1 ppm at 100 km

Golden line = max values of SO2 (67 ppb) from microwave measurements of Sandor et al (2010)

so 2 boundary condition sensitivity study so x
SO2 Boundary Condition Sensitivity Study: SOx

No change in SO2 above 80 km due to pulse in lower atmosphere

Vulcanism not the source of SO2 above this point

conclusions
Conclusions
  • SO2, SO, and halogen species are most sensitive to change in eddy mixing.
  • Least amount of change to SOx and ClOx from temperature changes.
  • Effects on sulphur compounds seems more evident/pronounced for lower boundary value changes in SO2 mixing ratio below ~80 km, and little effect above ~80 km vulcanism not the source!!!
  • Effects on ClOx compounds seems more evident/pronounced for lower boundary value changes in SO2 mixing ratio at the below ~90 km, and little effect above ~90 km, with no change in HCl profile.
slide16

Preliminary modeling suggests lower HCl abundances result in greater abundances of SO2, SO, and SO3 generally lower O2 abundances, and greater ClO abundances.

  • We will use some of this 1-D chemistry and resulting tracer species profiles in the Venus Thermospheric General Circulation Model (VTGCM) (Bougher et al, 1997) for further comparison to VExdatasets.