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| Titel |
Polarimetry as a Tool for Investigation of Clouds in Polar Regions |
| VerfasserIn |
Victoria Falaleeva, Aleksey Mamontov, Alexander Chernokulsky, Arseniy Artamonov |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250150551
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| Publikation (Nr.) |
 EGU/EGU2017-15023.pdf |
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| Zusammenfassung |
| Polar Regions are the most susceptible to climate change. And clouds with their strong
impact on the radiative fluxes are important subjects to study. Since clouds are the main
polarizing factors in atmosphere, polarized remote sensing seems to be a useful
tool for investigation of their macro- and microphysics. The aim of this work is to
evaluate the capabilities of passive sounding of the polarized radiation in visible,
near- and thermal infrared channels in obtaining information on polar clouds from
satellites.
We have calculated the spectra of the Stokes vector for a set of cloudy cases
(different effective diameter of ice particles/droplets, cloud phase, cloud height, surface
albedo) using the 1-D forward Fast Line-by-Line Model (FLBLM). The numerical
experiments show that sensitivity of the linear polarization to the change of cloud
structure is about 10% for solar radiation and 1% for thermal one. The vertical
structure could be retrieved, if the instruments meet certain requirements, such
as high spectral resolution. And FLBLM can be applied for planning the satellite
missions.
This work is supported by RFBR, research project No. 16-35-00585. |
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