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TitleRevisiting Theories for the Growth of Single Crystalline Ice: Laboratory Data and Code to Compute the Crystal Shape Functions
Date2025
AbstractThis data set comprises individual time-series data for crystals grown in the substrate crystal imaging chamber (Pokrifka et al., 2025) along with surrogate time-series data extracted from free fall chamber measurements (Takahashi et al., 1991). The data set includes Fortran 90 code to compute the crystal shape functions for cylinders (Nelson and Baker, 1996; Nelson, 2001) and for hexagonal prisms using data from the simulations of Wood et al. (2001). Data for the shape functions are also included along with python code to plot the shape function data and output from the Fortran 90 codes. Sample Fortran 90 output is also included. A README file that describes the data is included. These data are described in an article that is submitted to The Journal of the Atmospheric Sciences (Revisiting Theories for the Growth of Solid and Hollow Single Crystals: The Importance of Step Source Location. Authors: Jerry Y. Harrington and Gwenore F. Pokrifka).
MetadataClick here for full metadata
Data DOIdoi:10.26208/XJQK-R076

Researchers
Harrington, J. Y.
Penn State Department of Meteorology
Pokrifka, G.
Penn State Department of Meteorology

Data Access


References
Nelson, J., and M. Baker, 1996: New theoretical framework for studies of vapor growth and sublimation of small ice crystals in the atmosphere. J. Geophys. Res., 101, 7033-7047, https://doi.org/10.1029/95JD03162
Nelson, J., 2001: Growth mechanisms to explain the primary and secondary habits of snow crystals. Philos. Mag. A., 81, 2337-2373, https://doi.org/10.1080/01418610108217152
Pokrifka, G., A. Moyle, and J. Harrington, 2025: Columnar ice dimensional growth rates at temperatures below 40C: Measurements in a novel thermal gradient diffusion chamber. J. Atmos. Sci., https://doi.org/10.1175/JAS-D-25-0030.1
Takahashi, T., T. Endoh, G. Wakahama, and N. Fukuta, 1991: Vapor diffusional growth of free- falling snow crystals between -3 and -23C. J. Meteorol. Soc. Japan, 69, 15-30, https://doi.org/10.2151/jmsj1965.69.1_15