LIDAR TECHNOLOGIES FOR AEROSOL PROFILING IN PLANETARY ATMOSPHERES (Abstract/Poster in convegno)

Type
Label
  • LIDAR TECHNOLOGIES FOR AEROSOL PROFILING IN PLANETARY ATMOSPHERES (Abstract/Poster in convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • AdrianiA. (1), Cairo F. (2), MoriconiM. L. (2,1), Di DonfrancescoG. (3), Di LibertoL. (2) (2012)
    LIDAR TECHNOLOGIES FOR AEROSOL PROFILING IN PLANETARY ATMOSPHERES
    in International Planetary Probe Workshop, Toulouse, France, 18-22 Giugno 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • AdrianiA. (1), Cairo F. (2), MoriconiM. L. (2,1), Di DonfrancescoG. (3), Di LibertoL. (2) (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) IAPS-INAF, (2) CNR-ISAC, (3) ENEA (literal)
Titolo
  • LIDAR TECHNOLOGIES FOR AEROSOL PROFILING IN PLANETARY ATMOSPHERES (literal)
Abstract
  • An assessment of the aerosol abundance and distribution in planetary atmospheres is mandatory for an accurate retrieval of both atmosphere chemical compositions and surface characterization.The LIDAR (Light Detection And Ranging) technique allows for a determination and characterization of aerosol profiles. This technique allows for profiling a semi-transparent medium as long as its optical depth is of the order of some unity. In such cases, elastic multi-wavelength LIDARs are apted to describe suspended particles, permitting an estimation of the aerosol size, and to deliver information on particle shapesby means of the polarization diversity techniques. Airborne and spaceborne LIDARs, or automated ground-based instrument deployed in heavy duty conditions (deserts, poles), have been used since a long time for a description of the aerosol content of the terrestrial atmosphere and the technology is now mature enough for planning the deployment of such instruments in an extra-terrestrial mission. In fact, the current technology has allowed mission in the terrestrial stratosphere, with long duration balloons and stratospheric aircraft, as well as on spacecraft and satellites on polar orbit. So, such instruments would be in principle usable wherever environmental conditions, as pressure, temperature and adverse chemical conditions, would allow. As instance, a light-weight and low power instrument with dual wavelength and polarization diversity capability would be a perfect candidate for exploring the aerosol content of several planets and satellites atmospheres, namely the terrestrial planets as Mars and Venus, but also outer planets or moons like Jupiter, Saturn and Titan. Depending on the specific target, the instrument could be deployed on small orbiting platforms, on balloons drifting in the atmosphere, on parachute and even from grounds, allowing the remote sensing of aerosol for a range of several chilometers. A survey of current capabilities of LIDAR systems and an outlook toward their usage in sounding planetary atmosphere will be here presented, with special emphasis on possible advantages and drawbacks of specific planetary environments. (literal)
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