Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8138111 | Icarus | 2014 | 42 Pages |
Abstract
Nadir observations have also been divided into time series, allowing generating animations to follow the intensity and the displacement of bright patches over time. Apparent wind velocities and characteristic decay/rise times and have been deduced from these time series. The speed of the displacements varies from â¼0 up to 213 m sâ1, with a mean value of 54 m sâ1. Owing to the high variability of the direction of the displacements both in the short and the long terms, no clear trend of a global motion at â¼96 km can be deduced from these observations. The mean decay time is â¼750 min while the mean rise time is â¼1550 min. The decay time can be explained as a combination of radiative decay and atomic oxygen transport.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
Lauriane Soret, Jean-Claude Gérard, Giuseppe Piccioni, Pierre Drossart,