Emde, Claudia and Buras, R. and Mayer, B. and Blumthaler, M. (2010) The impact of aerosols on polarized sky radiance: model development, validation, and applications. Atmospheric Chemistry and Physics, 10, pp. 383-396. Copernicus Publications. doi: 10.5194/acp-10-383-2010.
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Official URL: http://www.atmos-chem-phys.net/10/383/2010/
Abstract
Although solar radiation initially is unpolarized when entering the Earth's atmosphere, it is polarized by scattering processes with molecules, water droplets, ice crystals, and aerosols. Hence, measurements of the polarization state of radiation can be used to improve remote sensing of aerosols and clouds. The analysis of polarized radiance measurements requires an accurate radiative transfer model. To this end, a new efficient and flexible three-dimensional Monte Carlo code to compute polarized radiances has been developed and implemented into MYSTIC (Monte Carlo code for the phYSically correct Tracing of photons In Cloudy atmospheres). The code has been extensively validated against published benchmark results. The polarized downwelling radiation field is calculated for various aerosol types showing the high sensitivity of polarized ultraviolet radiances to the particle microphysics. Model simulations are compared to ground based measurements and found to be qualitatively in good agreement. Quantitative differences can be attributed to the assumed aerosol models based on the OPAC aerosol database, which does not include exactly the types of aerosols that have been observed. This comparison to the measurements shows that there is a high potential to retrieve information about the aerosol type from polarized radiance measurements.
Item URL in elib: | https://elib.dlr.de/65842/ | |||||||||||||||
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Document Type: | Article | |||||||||||||||
Title: | The impact of aerosols on polarized sky radiance: model development, validation, and applications | |||||||||||||||
Authors: |
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Date: | 1 January 2010 | |||||||||||||||
Journal or Publication Title: | Atmospheric Chemistry and Physics | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | Yes | |||||||||||||||
Gold Open Access: | Yes | |||||||||||||||
In SCOPUS: | Yes | |||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||
Volume: | 10 | |||||||||||||||
DOI : | 10.5194/acp-10-383-2010 | |||||||||||||||
Page Range: | pp. 383-396 | |||||||||||||||
Publisher: | Copernicus Publications | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | radiative transfer, polarization, Monte Carlo method, aerosols, clouds | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||||||||
HGF - Program: | Space (old) | |||||||||||||||
HGF - Program Themes: | W EO - Erdbeobachtung | |||||||||||||||
DLR - Research area: | Space | |||||||||||||||
DLR - Program: | W EO - Erdbeobachtung | |||||||||||||||
DLR - Research theme (Project): | W - Vorhaben Atmosphären- und Klimaforschung (old) | |||||||||||||||
Location: | Oberpfaffenhofen | |||||||||||||||
Institutes and Institutions: | Institute of Atmospheric Physics > Atmospheric Remote Sensing | |||||||||||||||
Deposited By: | Freund, Jana | |||||||||||||||
Deposited On: | 26 Oct 2010 10:15 | |||||||||||||||
Last Modified: | 02 May 2019 14:04 |
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