Retrieval of Venus' clouds and hazes properties with polarimetric data from SPICAV/VEx

Loïc Rossi 1 Emmanuel Marcq 1 Nicolas Bott 1 Franck Montmessin 1 Anna Fedorova 2 Daphne Stam 3 Jean-Loup Bertaux 4 Oleg Korablev 2
1 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
2 IKI - Space Research Institute of the Russian Academy of Sciences
3 Faculty of Aerospace Engineering [Delft]
4 HEPPI - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : The study of Venus’ cloud layers is important in or- der to understand the structure, radiative balance and dynamics of the Venusian atmosphere. Polarization measurements have given important constraints for the determination of the constituents of the clouds and haze.From ground based observations, Hansen and Hovenier[3], using a radiative transfer model includ- ing polarization, found that the main cloud layers be- tween 50 and 70 km consist of r ∼ 1 μm radius spher- ical droplets of a H SO -H O solution. In the early 1980s, Kawabata[4] used the polarization data from the OCPP instrument on the spacecraft Pioneer Venus to constrain the properties of the overlying haze. They found that the haze layer is composed of smaller parti- cles with r ∼ 0.25 μm and similar refractive indices. Our work reproduces the method used by Hansen and Kawabata[3, 4]. We applied a radiative transfer model with polarization on the polarization data of the SPICAV-IR instrument on-board ESA’s Venus Ex- press. Our aim is to better constrain haze and cloud particles at the top of Venus’s clouds, as well as their spatial and temporal variability.
Type de document :
Communication dans un congrès
European Planetary Science Congress 2015, Sep 2015, Nantes, France. 10, pp.EPSC2015-119, 2015
Liste complète des métadonnées

Littérature citée [9 références]  Voir  Masquer  Télécharger
https://hal-insu.archives-ouvertes.fr/insu-01213216
Contributeur : Catherine Cardon <>
Soumis le : jeudi 8 octobre 2015 - 09:37:04
Dernière modification le : jeudi 22 novembre 2018 - 15:04:53
Document(s) archivé(s) le : samedi 9 janvier 2016 - 10:16:20

Fichier

EPSC2015-119.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

  • HAL Id : insu-01213216, version 1

Collections

INSU | UPMC | UVSQ | LATMOS | UNIV-PARIS-SACLAY | SORBONNE-UNIVERSITE

Citation

Loïc Rossi, Emmanuel Marcq, Nicolas Bott, Franck Montmessin, Anna Fedorova, et al.. Retrieval of Venus' clouds and hazes properties with polarimetric data from SPICAV/VEx. European Planetary Science Congress 2015, Sep 2015, Nantes, France. 10, pp.EPSC2015-119, 2015. 〈insu-01213216〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

284

Téléchargements de fichiers

108

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD