Articles | Volume 16, issue 24
https://doi.org/10.5194/amt-16-6123-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-16-6123-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
W-band S–Z relationships for rimed snow particles: observational evidence from combined airborne and ground-based observations
Shelby Fuller
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Samuel A. Marlow
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Samuel Haimov
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Matthew Burkhart
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Kevin Shaffer
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Austin Morgan
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
Department of Atmospheric Science, University of Wyoming, Laramie, WY, USA
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EGUsphere, https://doi.org/10.5194/egusphere-2026-2940, https://doi.org/10.5194/egusphere-2026-2940, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
The processes that establish how mixed-phase closed-cell clouds transition to more open cellular structures are poorly known. First-of-its kind aircraft observations document such a transition in the presence of anomalously high aerosol concentrations over the Nordic Seas at cloud temperatures < -15 °C. The reduces the drop size, discouraging riming. Eventually, ice precipitation produces surface cold pools that drive the convective transition, despite strong counteracting surface fluxes.
Cuong M. Nguyen, Mengistu Wolde, Alessandro Battaglia, Leonid Nichman, Natalia Bliankinshtein, Samuel Haimov, Kenny Bala, and Dirk Schuettemeyer
Atmos. Meas. Tech., 15, 775–795, https://doi.org/10.5194/amt-15-775-2022, https://doi.org/10.5194/amt-15-775-2022, 2022
Short summary
Short summary
An analysis of airborne triple-frequency radar and almost perfectly co-located coincident in situ data from an Arctic storm confirms the main findings of modeling work with radar dual-frequency ratios (DFRs) at different zones of the DFR plane associated with different ice habits. High-resolution CPI images provide accurate identification of rimed particles within the DFR plane. The relationships between the triple-frequency signals and cloud microphysical properties are also presented.
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Short summary
Snowfall rate and radar reflectivity measurements were analyzed. We confirmed that the relationship between snowfall rate and reflectivity is dependent on snow particle type. It is likely that the measured snowfall was produced by solid (ice) particles colliding with liquid cloud droplets, forming rimed snow particles. This analysis is expected to improve snowfall rate estimation based on measurements made using W-band radars.
Snowfall rate and radar reflectivity measurements were analyzed. We confirmed that the...