Effect of physics on chemistry
Download
1 / 8

Effect of Physics on Chemistry - PowerPoint PPT Presentation


  • 75 Views
  • Uploaded on

Effect of Physics on Chemistry. (Comparison of 4 deep convective schemes). Goal. Examine sensitivity of chemistry to current/proposed convective parameterizations Use offline-CAM model: feedbacks not allowed New parameterizations improve climate simulations considerable.

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 ' Effect of Physics on Chemistry' - quincy-mcneil


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
Effect of physics on chemistry

Effect of Physics on Chemistry

(Comparison of 4 deep convective schemes)


Goal

  • Examine sensitivity of chemistry to current/proposed convective parameterizations

    • Use offline-CAM model: feedbacks not allowed

  • New parameterizations improve climate simulations considerable.

  • Can we use chemistry to constrain parameterizations?

    .


Zonally Averaged JJA CO (50 to 150 ppbv, contour interval of 5 ppbv)

cmt2

fvz

isufz

current


Zonally Averaged JJA CODifferences (-8 to 20 ppbv, contour interval of 1.4 ppbv)

cmt2 - fvz

Isufz - fvz

current - fvz


Zonally Averaged Lightning NO (0 to 1.6 E4 molec/cm3/s, contour interval 1 e3)

cmt2

fvz

current

Isufz


Lightning N JJA (Tg N/year log scale .0003 to .030)

cmt2

fvz

isufz

current


Zonally Averaged JJA O3Differences (-15 to 5 ppbv, contour interval of 1 ppbv)

cmt2 - fvz

Isufz - fvz

current - fvz


Conclusions
Conclusions

  • Convective mass flux is not well constrained

  • Significant differences in tropics with different schemes in O3, CO…

  • Can we constrain with chemistry?

  • More work is needed to understand physics

    changes on the chemistry


ad