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http://hdl.handle.net/2445/191613
Title: | Multiple Characteristics of Precipitation Inferred from Wind Profiler Radar Doppler Spectra |
Author: | Garcia Benadi, Albert Bech, Joan Udina Sistach, Mireia Campistron, Bernard Paci, Alexandre |
Keywords: | Radar Efecte de Doppler Vents Radar Doppler effect Winds |
Issue Date: | 2022 |
Publisher: | MDPI |
Abstract: | A methodology to process radar wind profiler Doppler spectra is presented and implemented for an UHF Degreane PCL1300 system. First, double peak signal detection is conducted at each height level and, then, vertical continuity checks for each radar beam ensure physically consistent measurements. Second, horizontal and vertical wind, kinetic energy flux components, Doppler moments, and different precipitation-related variables are computed. The latter include a new precipitation type estimate, which considers rain, snow, and mixed types, and, finally, specific variables for liquid precipitation, including drop size distribution parameters, liquid water content and rainfall rate. The methodology is illustrated with a 48 h precipitation event, recorded during the Cerdanya-2017 field campaign, carried out in the Eastern Pyrenees. Verification is performed with a previously existing process for wind profiler data regarding wind components, plus precipitation estimates derived from Micro Rain Radar and disdrometer observations. The results indicated that the new methodology produced comparable estimates of wind components to the previous methodology (Bias < 0.1 m/s, RMSE ≈ 1.1 m/s), and was skilled in determining precipitation type when comparing the lowest estimate of disdrometer data for snow and rain, but did not correctly identify mixed precipitation cases. The proposed methodology, called UBWPP, is available at the GitHub repository. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/rs14195023 |
It is part of: | Remote Sensing, 2022, vol. 14, num. 19, p. 1-23 |
URI: | http://hdl.handle.net/2445/191613 |
Related resource: | https://doi.org/10.3390/rs14195023 |
ISSN: | 2072-4292 |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
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725871.pdf | 6.05 MB | Adobe PDF | View/Open |
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