Theory of Time-Dependent Freezing. Part I: Description of Scheme for Wet Growth of Hail
Phillips, Vaughan LU
; Khain, Alexander
; Benmoshe, Nir
and Ilotoviz, Eyal
(2014)
In Journal of Atmospheric Sciences
71(12).
p.133-163
- Abstract
- At subzero temperatures, cloud particles can contain both ice and liquid water fractions. Wet growth of precipitation particles occurs when supercooled cloud liquid is accreted faster than it can freeze on impact. With a flexible framework, the theory of wet growth of hail is extended to the case of the inhomogeneities of surface temperature and of liquid coverage over the surface of the particle. The theory treats the heat fluxes between its wet and dry parts and radial heat fluxes from the sponge layer through the liquid skin to the air. The theory parameterizes effects of nonsphericity of hail particles on their growth by accretion. Gradual internal freezing of any liquid soaking the hail or graupel particle's interior during dry growth... (More)
- At subzero temperatures, cloud particles can contain both ice and liquid water fractions. Wet growth of precipitation particles occurs when supercooled cloud liquid is accreted faster than it can freeze on impact. With a flexible framework, the theory of wet growth of hail is extended to the case of the inhomogeneities of surface temperature and of liquid coverage over the surface of the particle. The theory treats the heat fluxes between its wet and dry parts and radial heat fluxes from the sponge layer through the liquid skin to the air. The theory parameterizes effects of nonsphericity of hail particles on their growth by accretion. Gradual internal freezing of any liquid soaking the hail or graupel particle's interior during dry growth ("riming") is treated as well. In this way, the microphysical recycling envisaged by Pflaum in a paper in 1980 is treated, with alternating episodes of wet and dry growth. The present paper, the first of a two-part paper, describes the scheme to treat wet growth, accounting for dependencies on condensate content, temperature, and particle size. Comparison with the laboratory experiments is presented. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4957580
- author
- Phillips, Vaughan
LU
; Khain, Alexander
; Benmoshe, Nir
and Ilotoviz, Eyal
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Atmospheric Sciences
- volume
- 71
- issue
- 12
- pages
- 133 - 163
- publisher
- Amer Meteorological Soc
- external identifiers
-
- wos:000345886100009
- scopus:84916230081
- ISSN
- 1520-0469
- DOI
- 10.1175/JAS-D-13-0375.1
- language
- English
- LU publication?
- yes
- id
- e278a952-8e55-4d58-89d5-e07d863702e8 (old id 4957580)
- date added to LUP
- 2016-04-01 10:05:42
- date last changed
- 2022-02-02 06:17:22
@article{e278a952-8e55-4d58-89d5-e07d863702e8,
abstract = {{At subzero temperatures, cloud particles can contain both ice and liquid water fractions. Wet growth of precipitation particles occurs when supercooled cloud liquid is accreted faster than it can freeze on impact. With a flexible framework, the theory of wet growth of hail is extended to the case of the inhomogeneities of surface temperature and of liquid coverage over the surface of the particle. The theory treats the heat fluxes between its wet and dry parts and radial heat fluxes from the sponge layer through the liquid skin to the air. The theory parameterizes effects of nonsphericity of hail particles on their growth by accretion. Gradual internal freezing of any liquid soaking the hail or graupel particle's interior during dry growth ("riming") is treated as well. In this way, the microphysical recycling envisaged by Pflaum in a paper in 1980 is treated, with alternating episodes of wet and dry growth. The present paper, the first of a two-part paper, describes the scheme to treat wet growth, accounting for dependencies on condensate content, temperature, and particle size. Comparison with the laboratory experiments is presented.}},
author = {{Phillips, Vaughan and Khain, Alexander and Benmoshe, Nir and Ilotoviz, Eyal}},
issn = {{1520-0469}},
language = {{eng}},
number = {{12}},
pages = {{133--163}},
publisher = {{Amer Meteorological Soc}},
series = {{Journal of Atmospheric Sciences}},
title = {{Theory of Time-Dependent Freezing. Part I: Description of Scheme for Wet Growth of Hail}},
url = {{http://dx.doi.org/10.1175/JAS-D-13-0375.1}},
doi = {{10.1175/JAS-D-13-0375.1}},
volume = {{71}},
year = {{2014}},
}