Publication Abstracts

Li et al. 2017

Li, C., A. Ingersoll, M. Janssen, S. Levin, S. Bolton, V. Adumitroaie, M. Allison, J. Arballo, A. Bellotti, S. Brown, S. Ewald, L. Jewell, S. Misra, G. Orton, F. Oyafuso, P. Steffes, and R. Williamson, 2017: The distribution of ammonia on Jupiter from a preliminary inversion of Juno Microwave Radiometer data. Geophys. Res. Lett., 44, no. 11, 5317-5325, doi:10.1002/2017GL073159.

The Juno Microwave Radiometer (Juno/MWR) measured the thermal emission from Jupiter's atmosphere from the cloud tops at about one bar to as deep as a hundred bars of pressure during its first flyby over Jupiter (PJ1). The nadir brightness temperatures show that the Equatorial Zone is likely to be an ideal adiabat, which allows a determination of the deep ammonia abundance in the range 362(+33,-33) ppm. The combination of Markov Chain Monte Carlo method and Tikhonov regularization is studied to invert Jupiter's global ammonia distribution assuming a prescribed temperature profile. The result shows 1) ammonia is depleted globally down to 50-60 bars except within a few degrees of the equator, 2) the North Equatorial Belt is more depleted in ammonia than elsewhere, and 3) the ammonia concentration shows a slight inversion starting from about 7 bars to 2 bars. These results are robust regardless of the choice of water abundance.

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BibTeX Citation

@article{li01900n,
  author={Li, C. and Ingersoll, A. and Janssen, M. and Levin, S. and Bolton, S. and Adumitroaie, V. and Allison, M. and Arballo, J. and Bellotti, A. and Brown, S. and Ewald, S. and Jewell, L. and Misra, S. and Orton, G. and Oyafuso, F. and Steffes, P. and Williamson, R.},
  title={The distribution of ammonia on Jupiter from a preliminary inversion of Juno Microwave Radiometer data},
  year={2017},
  journal={Geophys. Res. Lett.},
  volume={44},
  number={11},
  pages={5317--5325},
  doi={10.1002/2017GL073159},
}

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RIS Citation

TY  - JOUR
ID  - li01900n
AU  - Li, C.
AU  - Ingersoll, A.
AU  - Janssen, M.
AU  - Levin, S.
AU  - Bolton, S.
AU  - Adumitroaie, V.
AU  - Allison, M.
AU  - Arballo, J.
AU  - Bellotti, A.
AU  - Brown, S.
AU  - Ewald, S.
AU  - Jewell, L.
AU  - Misra, S.
AU  - Orton, G.
AU  - Oyafuso, F.
AU  - Steffes, P.
AU  - Williamson, R.
PY  - 2017
TI  - The distribution of ammonia on Jupiter from a preliminary inversion of Juno Microwave Radiometer data
JA  - Geophys. Res. Lett.
VL  - 44
IS  - 11
SP  - 5317
EP  - 5325
DO  - 10.1002/2017GL073159
ER  -

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