Publication Abstracts

Folkner et al. 2006

Folkner, W.M., S.W. Asmar, J.S. Border, G.W. Franklin, S.G. Finley, J. Gorelik, D.V. Johnston, V.V. Kerzhanovich, S.T. Lowe, R.A. Preston, M.K. Bird, R. Dutta-Roy, M. Allison, D.H. Atkinson, P. Edenhofer, D. Plettemeier, and G.L. Tyler, 2006: Winds on Titan from ground-based tracking of the Huygens probe. J. Geophys. Res., 111, E07S02, doi:10.1029/2005JE002649.

Large radio telescopes on Earth tracked the radio signal transmitted by the Huygens probe during its mission at Titan. Frequency measurements were conducted as a part of the Huygens Doppler Wind Experiment (DWE) in order to derive the velocity of the probe in the direction to Earth. The DWE instrumentation on board Huygens consisted of an ultrastable oscillator which maintained the high Doppler stability required for a determination of probe horizontal motion during the atmospheric descent. A vertical profile of the zonal wind velocity in Titan's atmosphere was constructed from the Doppler data under the plausible assumption of generally small meridional wind, as validated by tracked images from the Huygens Descent Imager/Spectral Radiometer (DISR). We report here on improved results based on data with higher temporal resolution than that presented in the preliminary analysis by Bird et al. (2005), corroborating the first in situ measurement of Titan's atmospheric superrotation and a region of strong vertical shear reversal within the lower stratosphere. We also present the first high-resolution display and interpretation of the winds near the surface and planetary boundary layer.

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BibTeX Citation

  author={Folkner, W. M. and Asmar, S. W. and Border, J. S. and Franklin, G. W. and Finley, S. G. and Gorelik, J. and Johnston, D. V. and Kerzhanovich, V. V. and Lowe, S. T. and Preston, R. A. and Bird, M. K. and Dutta-Roy, R. and Allison, M. and Atkinson, D. H. and Edenhofer, P. and Plettemeier, D. and Tyler, G. L.},
  title={Winds on Titan from ground-based tracking of the Huygens probe},
  journal={J. Geophys. Res.},

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RIS Citation

ID  - fo02000x
AU  - Folkner, W. M.
AU  - Asmar, S. W.
AU  - Border, J. S.
AU  - Franklin, G. W.
AU  - Finley, S. G.
AU  - Gorelik, J.
AU  - Johnston, D. V.
AU  - Kerzhanovich, V. V.
AU  - Lowe, S. T.
AU  - Preston, R. A.
AU  - Bird, M. K.
AU  - Dutta-Roy, R.
AU  - Allison, M.
AU  - Atkinson, D. H.
AU  - Edenhofer, P.
AU  - Plettemeier, D.
AU  - Tyler, G. L.
PY  - 2006
TI  - Winds on Titan from ground-based tracking of the Huygens probe
JA  - J. Geophys. Res.
VL  - 111
SP  - E07S02
DO  - 10.1029/2005JE002649
ER  -

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