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Advances in Science and Research Contributions in Applied Meteorology and Climatology
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Volume 13
Adv. Sci. Res., 13, 27–35, 2016
https://doi.org/10.5194/asr-13-27-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Sci. Res., 13, 27–35, 2016
https://doi.org/10.5194/asr-13-27-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

  16 Mar 2016

16 Mar 2016

SATIN–Satellite driven nowcasting system

Ingo Meirold-Mautner, Alexander Kann, and Florian Meier Ingo Meirold-Mautner et al.
  • ZAMG – Zentralanstalt fü Meteorologie und Geodynamik, Department of forecasting models, Vienna, Austria

Abstract. A precipitation nowcasting system (SATIN) is presented which relies entirely on satellite based precipitation products and rain gauge measurements. Thus, the proposed system is most suitable for areas where ground based radar observations are not available, or potentially suffer from low quality. SATIN delivers analyses on a 1 km grid every 15 min and nowcasts (obtained through motion vectors) in 15 min time steps. Nowcasts are gradually merged with NWP precipitation forecasts. An extensive validation including comparisons to different NWP models yields superior performance for SATIN analyses as well as nowcasts for lead times up to 1 h. Reducing the station density still yields better performance than operationally available NWP's.

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Short summary
In this study a precipitation nowcasting method is developed which relies on satellite products and automatic weather station data only. It thus omits ground based radar observations which are not readily available in large parts of the world. The system shows improved skill when compared to numerical weather prediction models for analysis and for lead times up to one hour. This type of nowcasting could be valuable in data sparse regions where radar observations are lacking or of poor quality.
In this study a precipitation nowcasting method is developed which relies on satellite products...
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