Surface and airborne evidence for plumes and winds on Triton

Details Surface and airborne evidence for plumes and winds on Triton Surface and airborne evidence for plumes and winds on Triton

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990sci...250..421h&link_type=abstract

Science (ISSN 0036-8075), vol. 250, Oct. 19, 1990, p. 421-424.

Physics

11

Atmospheric Circulation, Planetary Meteorology, Triton, Wind (Meteorology), Atmospheric Pressure, Atmospheric Temperature, Ekman Layer, Geysers, Satellite Atmospheres, Wind Profiles

Scientific paper

Aeolian features on Triton that were imaged during the Voyager Mission have been grouped. The term 'aeolian feature' is broadly defined as features produced by or blown by the wind, including surface and airborne materials. Observations of the latitudinal distributions of the features probably associated with current activity (known plumes, crescent streaks, fixed terminator clouds, and limb haze with overshoot) all occur from latitude -37 deg to latitude -62 deg. Likely indicators of previous activity (dark surface streaks) occur from latitude -5 deg to -70 deg, but are most abundant from -15 deg to -45 deg, generally north of currently active features. Those indicators which give information on wind direction and speed have been measured. Wind direction is a function of altitude. The predominant direction of the surface wind streaks is found to be between 40 deg and 80 deg measured clockwise from north. The average orientation of streaks in the northeast quadrant is 59 deg. Winds at 1- to 3-kilometer altitude are eastward, while those at more than 8 kilometers blow west.

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