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Proceedings Paper

Accurate spectrally modulating polarimeters for atmospheric aerosol characterization
Author(s): Jeroen H. H. Rietjens; Martijn Smit; Gerard van Harten; Antonio Di Noia; Otto P. Hasekamp; Jos de Boer; Hester Volten; Frans Snik; Christoph U. Keller
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Paper Abstract

Highly accurate multi-angle polarimeters are essential for taking the next step in global characterization of atmospheric aerosol. Spectral polarization modulation enables highly accurate snapshot polarimetry and is very suitable for ground-, air- and space-based instrumentation. In this paper we present two instruments that employ this technology, the SPEX prototype and groundSPEX. We have performed ground-based measurements at the CESAR Observatory in the Netherlands with these two instruments. We compare the measured degree of linear polarization of co-located measurements, which show an rms difference of 0.005. Aerosol microphysical properties that have been retrieved from these measurements agree well with similar retrievals from AERONET measurements. Finally, we discuss the current efforts to upgrade the SPEX prototype to an autonomous instrument suitable for flying on NASA’s ER-2 high altitude aircraft.

Paper Details

Date Published: 1 September 2015
PDF: 7 pages
Proc. SPIE 9613, Polarization Science and Remote Sensing VII, 96130S (1 September 2015); doi: 10.1117/12.2188024
Show Author Affiliations
Jeroen H. H. Rietjens, SRON Netherlands Institute for Space Research (Netherlands)
Martijn Smit, SRON Netherlands Institute for Space Research (Netherlands)
Gerard van Harten, Leiden Univ. (Netherlands)
Antonio Di Noia, SRON Netherlands Institute for Space Research (Netherlands)
Otto P. Hasekamp, SRON Netherlands Institute for Space Research (Netherlands)
Jos de Boer, Leiden Univ. (Netherlands)
Hester Volten, National Institute for Public Health and the Environment (Netherlands)
Frans Snik, Leiden Univ. (Netherlands)
Christoph U. Keller, Leiden Univ. (Netherlands)


Published in SPIE Proceedings Vol. 9613:
Polarization Science and Remote Sensing VII
Joseph A. Shaw; Daniel A. LeMaster, Editor(s)

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