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Fluvial erosion and post-erosional processes on Titan

Sotin, Christophe; Barnes, Jason W.; Rodriguez, Sebastien +16 more

The surface of Titan has been revealed by Cassini observations in the infrared and radar wavelength ranges as well as locally by the Huygens lander instruments. Sand seas, recently discovered lakes, distinct landscapes and dendritic erosion patterns indicate dynamic surface processes. This study focus on erosional and depositional features that ca…

Diagnostics of Titan's stratospheric dynamics using Cassini/CIRS data and the 2-dimensional IPSL circulation model

Teanby, N. A.; Bézard, B.; Lebonnois, S. +6 more

The dynamics of Titan's stratosphere is discussed in this study, based on a comparison between observations by the CIRS instrument on board the Cassini spacecraft, and results of the 2-dimensional circulation model developed at the Institute Pierre-Simon Laplace, available at http://www.lmd.jussieu.fr/titanDbase [Rannou, P., Lebonnois, S., Hourdin…

The Schumann resonance: A tool for exploring the atmospheric environment and the subsurface of the planets and their satellites

López-Moreno, J. J.; Berthelier, J. -J.; Molina-Cuberos, G. J. +7 more

The propagation of extremely low frequency (ELF) electromagnetic waves and resonance phenomena in the Earth atmosphere has been extensively studied, in relation with ionospheric dynamics, and thunderstorm and lightning activities. A similar investigation can be performed for any other planet and satellite environment, provided this body is wrapped…

Evidence of electrical activity on Titan drawn from the Schumann resonances sent by Huygens probe

Morente, Juan A.; Portí, Jorge A.; Navarro, Enrique A. +1 more

A procedure is shown for extracting weak resonances from the responses of electromagnetic systems excited by electric discharges. The procedure, based on analysis of the late-time system response, is first checked using an analytical function and later with the data for the electric field generated by the computational simulation of Titan's atmosp…

In situ thermal conductivity measurements of Titan's lower atmosphere

Lorenz, R. D.; Hagermann, A.; Leese, M. R. +8 more

Thermal conductivity measurements, presented in this paper (Fig. 3), were made during the descent of the Huygens probe through the atmosphere of Titan below the altitude of 30 km. The measurements are broadly consistent with reference values derived from the composition, pressure and temperature profiles of the atmosphere; except in narrow altitud…