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Title: First observations of triple-frequency radar Doppler spectra in snowfall: Interpretation and applications
Authors: Kneifel, S.
Kollias, P.
Battaglia, Alessandro
Leinonen, J.
Maahn, M.
Kalesse, H.
Tridon, F.
First Published: 2-Mar-2016
Publisher: Wiley for American Geophysical Union (AGU)
Citation: Geophysical Research Letters, 2016, 43 (5), pp. 2225-2233
Abstract: The potential of multifrequency Doppler spectra to constrain precipitation microphysics has so far only been exploited for dual-frequency spectra in rain. In this study, we extend the dual-frequency concept to triple-frequency Doppler radar spectra obtained during a snowfall event which included rimed and unrimed snow aggregates. A large selection of spectra obtained from low-turbulence regions within the cloud reveals distinctly different signatures of the derived dual spectral ratios. Due to the third frequency, a characteristic curve can be derived which is almost independent of the underlying particle size distribution and velocity-size relation. This approach provides new opportunities for validating existing and future snow scattering models and reveals how the information content of triple-frequency radar data sets can be further exploited for snowfall studies.
DOI Link: 10.1002/2015GL067618
ISSN: 0094-8276
eISSN: 1944-8007
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2016 American Geophysical Union. Deposited with reference to the publisher’s open access archiving policy.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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