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Article

The Results of Applying Different Methodologies to 10 Years of Quantitative Precipitation Estimation in Catalonia Using Weather Radar

1
Meteorological Service of Catalonia, 08029 Barcelona, Spain
2
Department of Applied Physics, University of Barcelona, 08007 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Naser El-Sheimy
Geomatics 2021, 1(3), 347-368; https://doi.org/10.3390/geomatics1030020
Received: 26 April 2021 / Revised: 27 May 2021 / Accepted: 16 July 2021 / Published: 18 July 2021
The single polarization C-Band weather radar network of the Meteorological Service of Catalonia covers the entire region (32,000 km2), which allows it to apply a series of corrections that improve preliminary estimations of the rainfall field (hourly and daily). In addition, an automatic re-processing using automatic weather stations helps to incorporate ground-based information. The last process of the quantitative precipitation estimation (QPE) is running the end-product again eight days later, when the data have been reviewed and corrected in the case of detecting anomalies in the radar or gauge data. These corrections are applied operationally, with the fields generated and stored automatically. The QPE fields are generated in the GeoTIFF format, allowing easy use with multiple applications and simplifying processes such as quality control. In this way, the analysis of a 10 year period of GeoTIFF QPE daily data compared with ground rainfall values is introduced. The results help to understand different points regarding the functioning of the network such as the dependance on the type of precipitation and the seasonality. In addition, the description of a heavy rainfall episode (22 October 2019) shows the variations and improvements in the different products. The main conclusions refer to how using GeoTIFF combined with point data (rain gauges), it is possible to ensure simple but effective quality control of an operational radar network. View Full-Text
Keywords: QPE; weather radar; bias; rain gauges; corrections; heavy rainfall; quality control; GeoTIFF QPE; weather radar; bias; rain gauges; corrections; heavy rainfall; quality control; GeoTIFF
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MDPI and ACS Style

Rigo, T.; Llasat, M.C.; Esbrí, L. The Results of Applying Different Methodologies to 10 Years of Quantitative Precipitation Estimation in Catalonia Using Weather Radar. Geomatics 2021, 1, 347-368. https://doi.org/10.3390/geomatics1030020

AMA Style

Rigo T, Llasat MC, Esbrí L. The Results of Applying Different Methodologies to 10 Years of Quantitative Precipitation Estimation in Catalonia Using Weather Radar. Geomatics. 2021; 1(3):347-368. https://doi.org/10.3390/geomatics1030020

Chicago/Turabian Style

Rigo, Tomeu, Maria C. Llasat, and Laura Esbrí. 2021. "The Results of Applying Different Methodologies to 10 Years of Quantitative Precipitation Estimation in Catalonia Using Weather Radar" Geomatics 1, no. 3: 347-368. https://doi.org/10.3390/geomatics1030020

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