Articles | Volume 18, issue 21
https://doi.org/10.5194/amt-18-6233-2025
https://doi.org/10.5194/amt-18-6233-2025
Research article
 | 
05 Nov 2025
Research article |  | 05 Nov 2025

Detection of multi-modal Doppler spectra – Part 1: Establishing characteristic signals in radar moment data

Sarah Wugofski, Matthew R. Kumjian, Mariko Oue, and Pavlos Kollias

Data sets

ARM: KAZRCFRSPCGECOPOL N. Bharadwaj et al. https://doi.org/10.5439/1608603

MWRLOS (b1) Cadeddu, M. and Tuftedal, M. https://doi.org/10.5439/1999490

Data Product: Ka ARM Zenith Radar (KAZR), in CfRadial format: general mode, corrected Toto, T. and Giangrande, S https://doi.org/10.5439/1560129

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Short summary
Doppler spectral data inform on how particles of varying vertical velocities contribute to total backscattered power observed. Through examining three case studies, consistent features in radar moment data were found to be characteristic of multi-modal spectra. We quantified how spectrum width and mean Doppler velocity can be used to determine whether or not a layer is multi-modal. The identification criteria and methods are described in Part 1 and assessed in Part 2.
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