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- Title
PHOTO-POLARIMETRIC SENSITIVITIES TO LAYERING AND MIXING OF ABSORBING AEROSOLS.
- Authors
Kalashnikova, Olga V.; Garay, Michael J.; Davis, Anthony B.; Diner, David J.; Martonchik, John V.
- Abstract
We investigate to what extent multi-angle polarimetric measurements are sensitive to vertical mixing/layering of absorbing aerosols, adopting calibration uncertainty of 1.5% in intensity and 0.5% in the degree of linear polarization of Multiangle Spectro-Polarimetric Imager (MSPI). Employing both deterministic and Monte Carlo radiative transfer codes with polarization, we conduct modeling experiments to determine how the measured Stokes vector elements are affected at UV and short visible wavelengths by the vertical distribution, mixing and layering of smoke and dust aerosols for variety of microphysical parameters. We find that multi-angular polarimetry holds the potential to infer dust-layer heights and thicknesses at blue visible channel due to its lesser sensitivity to changes in dust coarse mode optical properties, but higher sensitivity to the dust vertical profiles. Our studies quantify requirements for obtaining simultaneous information on aerosol layer height and absorption under MSPI measurement uncertainties.
- Subjects
POLARIMETRY; AEROSOLS; DUST; OPTICAL polarization; MONTE Carlo method; STOKES equations
- Publication
AAPP Physical, Mathematical & Natural Sciences / Atti della Accademia Peloritana dei Pericolanti: Classe di Scienze Fisiche, Matematiche e Naturali, 2011, Vol 89, Issue S1, p046-1
- ISSN
0365-0359
- Publication type
Article
- DOI
10.1478/C1V89S1P046