Articles | Volume 25, issue 14
https://doi.org/10.5194/acp-25-8087-2025
https://doi.org/10.5194/acp-25-8087-2025
Research article
 | 
29 Jul 2025
Research article |  | 29 Jul 2025

Ambient and intrinsic dependencies of evolving ice-phase particles within a decaying winter storm during IMPACTS

Andrew DeLaFrance, Lynn A. McMurdie, Angela K. Rowe, and Andrew J. Heymsfield

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Cited articles

Bansemer, A., Delene, D., Heymsfield, A., and OBrien, J.: NCAR Particle Probes IMPACTS, NASA Global Hydrometeorology Resource Center DAAC [data set], Huntsville, Alabama, USA, https://doi.org/10.5067/IMPACTS/PROBES/DATA101, 2022. 
Benjamin, S. G., Weygandt, S. S., Brown, J. M., Hu, M., Alexander, C. R., Smirnova, T. G., Olson, J. B., James, E. P., Dowell, D. C., Grell, G. A., Lin, H., Peckham, S. E., Smith, T. L., Moninger, W. R., Kenyon, J. S., and Manikin, G. S.: A North American Hourly Assimilation and Model Forecast Cycle: The Rapid Refresh, Mon. Weather Rev., 144, 1669–1694, https://doi.org/10.1175/MWR-D-15-0242.1, 2016. 
Boucher, R. J. and Wieler, J. G.: Radar Determination of Snowfall Rate and Accumulation, J. Appl. Meteorol. Clim., 24, 68–73, https://doi.org/10.1175/1520-0450(1985)024<0068:RDOSRA>2.0.CO;2, 1985. 
Brdar, S. and Seifert, A.: McSnow: A Monte-Carlo Particle Model for Riming and Aggregation of Ice Particles in a Multidimensional Microphysical Phase Space, J. Adv. Model Earth Sy., 10, 187–206, https://doi.org/10.1002/2017MS001167, 2018. 
Bringi, V., Seifert, A., Wu, W., Thurai, M., Huang, G.-J., and Siewert, C.: Hurricane Dorian Outer Rain Band Observations and 1D Particle Model Simulations: A Case Study, Atmosphere, 11, 879, https://doi.org/10.3390/atmos11080879, 2020. 
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Short summary
Numerical modeling simulations are used to investigate ice crystal growth and decay processes within a banded region of enhanced precipitation rates during a prominent winter storm. We identify robust primary ice growth in the upper portion of the cloud but decay exceeding 70 % during fallout through a subsaturated layer. The ice fall characteristics and decay rate are sensitive to the ambient cloud properties, which has implications for radar-based measurements and precipitation accumulations.
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