Spectrograph dedicated to measuring tropospheric trace gas constituents from space

Johan de Vries; Erik C. Laan; Alex F. Deutz; Isabel Escudero-Sanz; Henk Bokhove; Jan Hoegee; Ilse Aben; Rienk Jongma; Jochen Landgraf; Otto P. Hasekamp; Sander Houweling; Michiel van Weele; Roeland van Oss; Gijsbertus van den Oord; Pieternel Levelt

doi:10.1117/12.627008

21 October 2005 Spectrograph dedicated to measuring tropospheric trace gas constituents from space

Johan de Vries, Erik C. Laan, Alex F. Deutz, Isabel Escudero-Sanz, Henk Bokhove, Jan Hoegee, Ilse Aben, Rienk Jongma, Jochen Landgraf, Otto P. Hasekamp, Sander Houweling, Michiel van Weele, Roeland van Oss, Gijsbertus van den Oord, Pieternel Levelt

Author Affiliations +

Proceedings Volume 5978, Sensors, Systems, and Next-Generation Satellites IX; 59780O (2005) https://doi.org/10.1117/12.627008
Event: SPIE Remote Sensing, 2005, Bruges, Belgium

Abstract

Several organizations in the Netherlands are cooperating to develop user requirements and instrument concepts in the line of SCIAMACHY and OMI but with an increased focus on measuring tropospheric constituents from space. The concepts use passive spectroscopy in dedicated wavelength sections in the range of 300 to 2400 nm and wide angle, non-scanning, swath viewing. To be able to penetrate into the troposphere small ground pixels are used to obtain a fair fraction of cloud-free pixels and to allow precise detection of the sources of polluting gases. The trace gas products aimed for are O₃, NO₂, HCHO, H₂O, SO₂, Aerosol (optical depth, type and absorption index), CO and CH₄, covering science issues on air quality and climate. The main challenge in the instrument design is to obtain a good signal-to-noise for cloud free pixels and for low ground albedo and light levels. Also the retrieval of separated tropospheric and stratospheric column amounts from a nadir looking instrument is challenging. The paper discusses the user requirements and compares alternative measurement strategies. It explains the selection of passive UV-Visible-NIR spectroscopy and comes with an instrument concept which provides the current best realisation of the user requirements.

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Johan de Vries, Erik C. Laan, Alex F. Deutz, Isabel Escudero-Sanz, Henk Bokhove, Jan Hoegee, Ilse Aben, Rienk Jongma, Jochen Landgraf, Otto P. Hasekamp, Sander Houweling, Michiel van Weele, Roeland van Oss, Gijsbertus van den Oord, and Pieternel Levelt "Spectrograph dedicated to measuring tropospheric trace gas constituents from space", Proc. SPIE 5978, Sensors, Systems, and Next-Generation Satellites IX, 59780O (21 October 2005); https://doi.org/10.1117/12.627008

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KEYWORDS

Aerosols

Clouds

Sensors

Short wave infrared radiation

Satellites

Carbon monoxide

Climatology

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