Determination of the TROPOMI-SWIR instrument spectral response function

Richard M. van Hees; Paul J. J. Tol; Sidney Cadot; Matthijs Krijger; Stefan T. Persijn; Tim A. van Kempen; Ralph Snel; Ilse Aben; Ruud W. M. Hoogeveen

doi:10.5194/amt-11-3917-2018

Determination of the TROPOMI-SWIR instrument spectral response function

Richard M. van Hees, Paul J. J. Tol, Sidney Cadot, Matthijs Krijger, Stefan T. Persijn, Tim A. van Kempen, Ralph Snel, Ilse Aben, Ruud W. M. Hoogeveen

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The Tropospheric Monitoring Instrument (TROPOMI) is the single instrument on board the ESA Copernicus Sentinel-5 Precursor satellite. TROPOMI is a nadir-viewing imaging spectrometer with bands in the ultraviolet and visible, the near infrared and the shortwave infrared (SWIR). An accurate instrument spectral response function (ISRF) is required in the SWIR band where absorption lines of CO, methane and water vapor overlap. In this paper, we report on the determination of the TROPOMI-SWIR ISRF during an extensive on-ground calibration campaign. Measurements are taken with a monochromatic light source scanning the whole detector, using the spectrometer itself to determine the light intensity and wavelength. The accuracy of the resulting ISRF calibration key data is well within the requirement for trace-gas retrievals. Long-term in-flight monitoring of SWIR ISRF is achieved using five on-board diode lasers.

Original language	English
Pages (from-to)	3917-3933
Number of pages	17
Journal	Atmospheric Measurement Techniques
Volume	11
Issue number	7
DOIs	https://doi.org/10.5194/amt-11-3917-2018
Publication status	Published - 4 Jul 2018

Funding

TROPOMI is a collaboration between Airbus Defence and Space Netherlands, KNMI, SRON and TNO, on behalf of NSO and ESA. Airbus Defence and Space Netherlands is the main contractor for the design, building and testing of the instrument. KNMI and SRON are the principal investigator institutes for the instrument. TROPOMI is funded by the following ministries of the Dutch government: the Ministry of Economic Affairs, the Ministry of Education, Culture and Science, and the Ministry of Infrastructure and the Environment.

Funders	Funder number
Ministerie van Economische Zaken
Ministerie van Onderwijs, Cultuur en Wetenschap
Ministerie van Infrastructuur en Milieu

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title = "Determination of the TROPOMI-SWIR instrument spectral response function",

abstract = "The Tropospheric Monitoring Instrument (TROPOMI) is the single instrument on board the ESA Copernicus Sentinel-5 Precursor satellite. TROPOMI is a nadir-viewing imaging spectrometer with bands in the ultraviolet and visible, the near infrared and the shortwave infrared (SWIR). An accurate instrument spectral response function (ISRF) is required in the SWIR band where absorption lines of CO, methane and water vapor overlap. In this paper, we report on the determination of the TROPOMI-SWIR ISRF during an extensive on-ground calibration campaign. Measurements are taken with a monochromatic light source scanning the whole detector, using the spectrometer itself to determine the light intensity and wavelength. The accuracy of the resulting ISRF calibration key data is well within the requirement for trace-gas retrievals. Long-term in-flight monitoring of SWIR ISRF is achieved using five on-board diode lasers.",

author = "{van Hees}, {Richard M.} and Tol, {Paul J. J.} and Sidney Cadot and Matthijs Krijger and Persijn, {Stefan T.} and {van Kempen}, {Tim A.} and Ralph Snel and Ilse Aben and Hoogeveen, {Ruud W. M.}",

year = "2018",

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doi = "10.5194/amt-11-3917-2018",

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AU - van Hees, Richard M.

AU - Tol, Paul J. J.

AU - Cadot, Sidney

AU - Krijger, Matthijs

AU - Persijn, Stefan T.

AU - van Kempen, Tim A.

AU - Snel, Ralph

AU - Aben, Ilse

AU - Hoogeveen, Ruud W. M.

PY - 2018/7/4

Y1 - 2018/7/4

N2 - The Tropospheric Monitoring Instrument (TROPOMI) is the single instrument on board the ESA Copernicus Sentinel-5 Precursor satellite. TROPOMI is a nadir-viewing imaging spectrometer with bands in the ultraviolet and visible, the near infrared and the shortwave infrared (SWIR). An accurate instrument spectral response function (ISRF) is required in the SWIR band where absorption lines of CO, methane and water vapor overlap. In this paper, we report on the determination of the TROPOMI-SWIR ISRF during an extensive on-ground calibration campaign. Measurements are taken with a monochromatic light source scanning the whole detector, using the spectrometer itself to determine the light intensity and wavelength. The accuracy of the resulting ISRF calibration key data is well within the requirement for trace-gas retrievals. Long-term in-flight monitoring of SWIR ISRF is achieved using five on-board diode lasers.

AB - The Tropospheric Monitoring Instrument (TROPOMI) is the single instrument on board the ESA Copernicus Sentinel-5 Precursor satellite. TROPOMI is a nadir-viewing imaging spectrometer with bands in the ultraviolet and visible, the near infrared and the shortwave infrared (SWIR). An accurate instrument spectral response function (ISRF) is required in the SWIR band where absorption lines of CO, methane and water vapor overlap. In this paper, we report on the determination of the TROPOMI-SWIR ISRF during an extensive on-ground calibration campaign. Measurements are taken with a monochromatic light source scanning the whole detector, using the spectrometer itself to determine the light intensity and wavelength. The accuracy of the resulting ISRF calibration key data is well within the requirement for trace-gas retrievals. Long-term in-flight monitoring of SWIR ISRF is achieved using five on-board diode lasers.

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JO - Atmospheric Measurement Techniques

JF - Atmospheric Measurement Techniques

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Determination of the TROPOMI-SWIR instrument spectral response function

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