Venus Atmospheric Dynamics From VIRTIS On Venus Express - Preliminary Results

Details Venus Atmospheric Dynamics From VIRTIS On Venus Express - Preliminary Results Venus Atmospheric Dynamics From VIRTIS On Venus Express - Preliminary Results

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.1608l&link_type=abstract

American Astronomical Society, DPS meeting #38, #16.08; Bulletin of the American Astronomical Society, Vol. 38, p.511

Astronomy and Astrophysics

Astronomy

Scientific paper

The VIRTIS instrument on Venus Express has been operating successfully in Venus orbit since the 12 April 2006. VIRTIS-M channel is an imaging spectrometer, returning images in 864 spectral channels ranging from 0.25 um in the UV to 5 um in the infrared. We present some preliminary analysis of images from VIRTIS-M, concentrating on atmospheric dynamics, i.e. mainly winds retrieval. In particular, we present:
- latitude dependence of zonal wind at roughly 50 km height, from nightside cloud tracking at 1.7 & 2.3 microns
- latitude dependence of zonal wind at cloud-top height (65-70 km), from dayside cloud tracking
- preliminary measurement of rotation rate of S polar dipole
- further images showing cloud structures indicative of wave activity.

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