DARE: dedicated aerosols retrieval experiment

Kees Smorenburg; Gregory Bazalgette Courreges-Lacoste; Rob Decae; Andrew Court; Gerrit de Leeuw; Huib Visser

doi:10.1117/12.507838

2 February 2004 DARE: dedicated aerosols retrieval experiment

Kees Smorenburg, Gregory Bazalgette Courreges-Lacoste, Rob Decae, Andrew Court, Gerrit de Leeuw, Huib Visser

Proceedings Volume 5234, Sensors, Systems, and Next-Generation Satellites VII; (2004) https://doi.org/10.1117/12.507838
Event: Remote Sensing, 2003, Barcelona, Spain

Abstract

At present there is an increasing interest in remote sensing of aerosols from space because of the large impact of aerosols on climate, earth observation and health. TNO has performed a study aimed at improving aerosol characterisation using a space based instrument and state-of-the-art aerosol retrieval algorithms, based on requirements for up-to-date regional and global aerosol transport models. The study has resulted in instrument specifications and a concept design for aerosol detection from space. Based on the study the main requirements for a dedicated aerosol spectrometer are: a spectral range from 330-1000 nm with a spectral resolution from 2 nm (UV) to > 30 nm (NIR), observation in at least 3 polarisation directions (Stokes parameters) over a field of view (FOV) in swath directions of > 114 degrees and observation in at least 3 viewing directions (backwards, nadir, forward). The spectrometer design is a prism imaging spectrometer using a single detector array to measure the complete spectra for 2 polarisation directions. In this way the requirements for each viewing direction can be met with only 2 detector arrays. The system has a modular set-up, which makes the implementation of, for example, a change in the number of observation directions very simple. The basic requirements to discriminate between aerosol types are currently only met POLDER, that combines multiple view angles with polarization. The DARE concept shows an attractive potential for the development of next generation aerosol sensors.

Citation Download Citation

Kees Smorenburg, Gregory Bazalgette Courreges-Lacoste, Rob Decae, Andrew Court, Gerrit de Leeuw, and Huib Visser "DARE: dedicated aerosols retrieval experiment", Proc. SPIE 5234, Sensors, Systems, and Next-Generation Satellites VII, (2 February 2004); https://doi.org/10.1117/12.507838

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KEYWORDS

Aerosols

Sensors

Polarization

Spectroscopy

Prisms

Mirrors

Atmospheric particles

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