Published in

European Geosciences Union, Atmospheric Measurement Techniques, 6(14), p. 4565-4574, 2021

DOI: 10.5194/amt-14-4565-2021

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Evaluation of micro rain radar-based precipitation classification algorithms to discriminate between stratiform and convective precipitation

Journal article published in 2021 by Andreas Foth ORCID, Janek Zimmer, Felix Lauermann, Heike Kalesse-Los ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

In this paper, we present two micro rain radar-based approaches to discriminate between stratiform and convective precipitation. One is based on probability density functions (PDFs) in combination with a confidence function, and the other one is an artificial neural network (ANN) classification. Both methods use the maximum radar reflectivity per profile, the maximum of the observed mean Doppler velocity per profile and the maximum of the temporal standard deviation (±15 min) of the observed mean Doppler velocity per profile from a micro rain radar (MRR). Training and testing of the algorithms were performed using a 2-year data set from the Jülich Observatory for Cloud Evolution (JOYCE). Both methods agree well, giving similar results. However, the results of the ANN are more decisive since it is also able to distinguish an inconclusive class, in turn making the stratiform and convective classes more reliable.