Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 14, issue 8
Articles | Volume 14, issue 8
https://doi.org/10.5194/amt-14-5459-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-5459-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 8
Research article
 | 
10 Aug 2021
Research article |  | 10 Aug 2021

Slit homogenizer introduced performance gain analysis based on the Sentinel-5/UVNS spectrometer

Timon Hummel, Christian Meister, Corneli Keim, Jasper Krauser, and Mark Wenig

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Cited articles

Amann, S., Duong-Ederer, Q., Haist, T., Sierk, B., Guldimann, B., and Osten, W.: Characterization of fiber-based slit homogenizer devices in the NIR and SWIR, in: International Conference on Space Optics – ICSO 2018, 7–10 October 2014, La Caleta, Tenerife, Canary Islands, edited by: Sodnik, Z., Karafolas, N., and Cugny, B., vol. 11180, 2276–2286, International Society for Optics and Photonics, SPIE, https://doi.org/10.1117/12.2536147, 2019. a
Berlich, R. and Harnisch, B.: Radiometric assessment method for diffraction effects in hyperspectral imagers applied to the earth explorer 8 mission candidate flex, in: International Conference on Space Optics – ICSO 2014, 7–10 October 2014, La Caleta, Tenerife, Canary Islands, edited by: Sodnik, Z., Cugny, B., and Karafolas, N., vol. 10563, 1475–1483, International Society for Optics and Photonics, SPIE, https://doi.org/10.1117/12.2304079, 2017. a
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The impact of heterogeneous scene radiance affects the quality of trace gas retrieval products of Earth observation imaging spectrometers. This effect can be mitigated by introducing on-board hardware solutions called slit homogenizers, which scramble the light entering the instrument and thereby make it insensitive to Earth scene contrast. Here we present a comprehensive modeling of the slit homogenizer present in the Sentinel-5/UVNS instrument and quantify the spectral performance.
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