Articles | Volume 15, issue 10
https://doi.org/10.5194/amt-15-3121-2022
https://doi.org/10.5194/amt-15-3121-2022
Research article
 | 
19 May 2022
Research article |  | 19 May 2022

DARCLOS: a cloud shadow detection algorithm for TROPOMI

Victor J. H. Trees, Ping Wang, Piet Stammes, Lieuwe G. Tilstra, David P. Donovan, and A. Pier Siebesma

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This preprint is open for discussion and under review for Geoscientific Model Development (GMD).
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Cited articles

Ackerman, S. A., Strabala, K. I., Menzel, W. P., Frey, R. A., Moeller, C. C., and Gumley, L. E.: Discriminating clear sky from clouds with MODIS, J. Geophys. Res., 103, 32141–32157, https://doi.org/10.1029/1998JD200032, 1998. a
Adeline, K. R. M., Chen, M., Briottet, X., Pang, S. K., and Paparoditis, N.: Shadow detection in very high spatial resolution aerial images: A comparative study, ISPRS J. Photogramm., 80, 21–38, https://doi.org/10.1016/j.isprsjprs.2013.02.003, 2013. a, b, c
Beirle, S., Borger, C., Dörner, S., Li, A., Hu, Z., Liu, F., Wang, Y., and Wagner, T.: Pinpointing nitrogen oxide emissions from space, Science Advances, 5, eaax9800, https://doi.org/10.1126/sciadv.aax9800, 2019. a
Bo, P., Fenzhen, S., and Yunshan, M.: A Cloud and Cloud Shadow Detection Method Based on Fuzzy c-Means Algorithm, IEEE J. Sel. Top. Appl., 13, 1714–1727, https://doi.org/10.1109/JSTARS.2020.2987844, 2020. a
Bovensmann, H., Burrows, J. P., Buchwitz, M., Frerick, J., Noël, S., Rozanov, V. V., Chance, K. V., and Goede, A. P. H.: SCIAMACHY: Mission Objectives and Measurement Modes, J. Atmos. Sci., 56, 127–150, https://doi.org/10.1175/1520-0469(1999)056<0127:SMOAMM>2.0.CO;2, 1999. a
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Short summary
Cloud shadows are observed by the TROPOMI satellite instrument as a result of its high spatial resolution. These shadows contaminate TROPOMI's air quality measurements, because shadows are generally not taken into account in the models that are used for aerosol and trace gas retrievals. We present the Detection AlgoRithm for CLOud Shadows (DARCLOS) for TROPOMI, which is the first cloud shadow detection algorithm for a satellite spectrometer.
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