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Prediction of uncertainties in atmospheric properties measured by radio occultation experiments

Withers, Paul

Refraction due to gradients in ionospheric electron density, N_e, and neutral number density, n_n, can shift the frequency of radio signals propagating through a planetary atmosphere. Radio occultation experiments measure time series of these frequency shifts, from which N_e and n_n can be determined. Major …

The Planetary Laboratory for Image Analysis (PLIA)

Sánchez-Lavega, A.; Rojas, J. F.; Pérez-Hoyos, S. +4 more

The observation, characterization, and understanding of planetary atmospheres are key components of Solar System exploration. Their study requires, among other observations, the use of image data acquired from spacecrafts. The basic tasks that are generally used to work with planetary image data are: image navigation, projection, image processing,…

The distributions of the OH Meinel and O(a¹Δ-X³Σ) nightglow emissions in the Venus mesosphere based on VIRTIS observations

Drossart, P.; Piccioni, G.; Gérard, J. -C. +2 more

O(aΔ) and recently discovered OH Meinel nightglow emissions have been observed at the limb with the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS-M) instrument on board the Venus Express satellite. Hydroxyl bands belonging to Δv=1 sequence between 2.60and3.14µm and to Δv=2 sequence at 1.40-1.46µm have been unambiguously ide…