Publication Abstracts
Allison 1992
, 1992: A preliminary assessment of the Titan planetary boundary layer. In Proceedings Symposium on Titan, Toulouse, France, 9-12 September 1991, ESA SP-338, ESA Publications Division, ESTEC, pp. 113-118.
Prelimary estimates of the characteristic features of the Titan planetary boundary layer (PBL) are derived from the combined application of a patched Ekman-surface layer model and Rossby number similarity theory. A characteristic Ekman depth of 0.7 km is anticipated with an eddy viscosity K ∼ 103 cm2/s, an associated friction velocity u* ∼ 10-2 m/s, and a surface wind typically smaller than 0.6 m/s. Actual values of these parameters probably vary by as much as a factor of two or three, however, in response to local-temporal variations in surface roughness and stability. The saltation threshold for the wind-blown injection of ∼50 µm particulates into the atmosphere is less than twice the nominal friction velocity, suggesting that dusty breezes might be an occasional feature of the Titan meteorology. The direct measurement of Titan's PBL may be realized during the last two minutes of the Huygens Probe descent to its surface.
- Get PDF (937 kB. Document is scanned, no OCR.)
- PDF documents require the free Adobe Reader or compatible viewing software to be viewed.
Export citation: [ BibTeX ] [ RIS ]
BibTeX Citation
@inproceedings{al02000x,
author={Allison, M.},
title={A preliminary assessment of the Titan planetary boundary layer},
booktitle={Proceedings Symposium on Titan, Toulouse, France, 9-12 September 1991},
year={1992},
pages={113--118},
publisher={ESA Publications Division, ESTEC},
address={Noordwijk, The Netherlands},
}
[ Close ]
RIS Citation
TY - CPAPER ID - al02000x AU - Allison, M. PY - 1992 TI - A preliminary assessment of the Titan planetary boundary layer BT - Proceedings Symposium on Titan, Toulouse, France, 9-12 September 1991 SP - 113 EP - 118 PB - ESA Publications Division, ESTEC CY - Noordwijk, The Netherlands ER -
[ Close ]
