12 October 2006 Comparison of cloudiness derived from MSG satellite data with standard surface observations: preliminary results for Poland
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Abstract
The recently launched geostationary meteorological satellite METEOSAT-8 with the excellent temporal resolution as well as with well suited spectral channels of SEVIRI instrument is a useful source of the information about cloud cover. The paper presents the work aimed at the validation of the cloud mask derived from MSG/SEVIRI data with the use of the NWC SAF software. The total cloudiness amount obtained from satellite data for each Polish synoptic station was compared with the simultaneous surface observation. The analysis was performed for three hourly observations. The preliminary results for the day time conditions show a good coherence of the satellite cloudiness retrieval with ground observations. Mean difference between these two variables ranges from -0.7 octas to 1.7 octas depending on the illumination conditions. The largest differences were found for nighttime and twilight observations. However, during the night, in snow conditions, the cloudiness is grossly overestimated by the satellite.
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Bozena Lapeta, Izabela Dyras, Danuta Serafin-Rek, Zbigniew Ustrnul, "Comparison of cloudiness derived from MSG satellite data with standard surface observations: preliminary results for Poland", Proc. SPIE 6362, Remote Sensing of Clouds and the Atmosphere XI, 63621W (12 October 2006); doi: 10.1117/12.689694; https://doi.org/10.1117/12.689694
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