Polarization measurements with the airborne version of the POLDER instrument

Jean Luc Deuze; Francois-Marie Breon; Pierre-Yves Deschamps; Philippe Goloub; Maurice Herman

doi:10.1117/12.138825

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8 December 1992 Polarization measurements with the airborne version of the POLDER instrument

Jean Luc Deuze, Francois-Marie Breon, Pierre-Yves Deschamps, Philippe Goloub, Maurice Herman

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Proceedings Volume 1747, Polarization and Remote Sensing; (1992) https://doi.org/10.1117/12.138825
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The POLDER instrument is designed to perform spectral and directional measurements of the polarized light reflected by the Earth ground-atmosphere system. The instrument is planned to be launched on the future Japanese ADEOS platform. An airborne version of POLDER has been built. As a preparation of the satellite mission, campaign measurements were conducted in 1990 and 1991, over land surfaces, in the south of France. During the flights of the POLDER instrument, ground-based measurements of the skylight were performed in order to derive the characteristics of the atmospheric aerosols. Aerosol remote sensing over land surfaces is known to be a difficult task, because ground reflectances are much larger than the aerosol ones. The POLDER instrument provides reflectance and also polarized reflectance. An interesting feature is that polarized reflectances prove to be mainly informative about atmospheric scattering. The POLDER measurements are compared with simulations of the measurements, based on radiative transfer calculations using as the input the aerosol model derived from the ground-based measurements. The good agreement between simulated and observed polarizations assesses the POLDER capability to detect aerosols over land surfaces.

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Jean Luc Deuze, Francois-Marie Breon, Pierre-Yves Deschamps, Philippe Goloub, and Maurice Herman "Polarization measurements with the airborne version of the POLDER instrument", Proc. SPIE 1747, Polarization and Remote Sensing, (8 December 1992); https://doi.org/10.1117/12.138825

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