Publication Abstracts

Chellappan et al. 2024

Chellappan, S., P. Zuidema, S. Kirschler, C. Voigt, B. Cairns, E.C. Crosbie, R. Ferrare, J. Hair, D. Painemal, T. Shingler, M. Shook, K.L. Thornhill, F. Tornow, and A. Sorooshian, 2024: Microphysical evolution in mixed-phase midlatitude marine cold-air outbreaks. J. Atmos. Sci., 81, no. 10, 1725-1747, doi:10.1175/JAS-D-23-0203.1.

Five cold-air outbreaks are investigated with aircraft offshore of continental northeast America. Flight paths aligned with the cloud-layer flow from January through March span cloud-top temperatures from -5° to -12°C, in situ liquid water paths of up to 500 g/m2, while in situ cloud droplet number concentrations exceeding 500 cm-3}^ maintain effective radii below 10 µm. Rimed ice is detected in the four colder cases within the first cloud pass. After further fetch, ice particle number concentrations reaching 2.5 L-1support an interpretation that secondary ice production is occurring. Rime splintering is clearly evident, with dendritic growth increasing ice water contents within deeper clouds with colder cloud-top temperatures. Buoyancy fluxes reach 400-600 W/m2}^ near the Gulf Stream's western edge, with 1-s updrafts reaching 5 m/s supporting closely spaced convective cells. Near-surface rainfall rates of the three more intense cold-air outbreaks are a maximum near the Gulf Stream's eastern edge, just before the clouds transition to more open-celled structures. The milder two cold-air outbreaks transition to lower-albedo cumulus with little or no precipitation. The clouds thin through cloud-top entrainment.

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BibTeX Citation

@article{ch07610l,
  author={Chellappan, S. and Zuidema, P. and Kirschler, S. and Voigt, C. and Cairns, B. and Crosbie, E. C. and Ferrare, R. and Hair, J. and Painemal, D. and Shingler, T. and Shook, M. and Thornhill, K. L. and Tornow, F. and Sorooshian, A.},
  title={Microphysical evolution in mixed-phase midlatitude marine cold-air outbreaks},
  year={2024},
  journal={Journal of the Atmospheric Sciences},
  volume={81},
  number={10},
  pages={1725--1747},
  doi={10.1175/JAS-D-23-0203.1},
}

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RIS Citation

TY  - JOUR
ID  - ch07610l
AU  - Chellappan, S.
AU  - Zuidema, P.
AU  - Kirschler, S.
AU  - Voigt, C.
AU  - Cairns, B.
AU  - Crosbie, E. C.
AU  - Ferrare, R.
AU  - Hair, J.
AU  - Painemal, D.
AU  - Shingler, T.
AU  - Shook, M.
AU  - Thornhill, K. L.
AU  - Tornow, F.
AU  - Sorooshian, A.
PY  - 2024
TI  - Microphysical evolution in mixed-phase midlatitude marine cold-air outbreaks
JA  - J. Atmos. Sci.
JO  - Journal of the Atmospheric Sciences
VL  - 81
IS  - 10
SP  - 1725
EP  - 1747
DO  - 10.1175/JAS-D-23-0203.1
ER  -

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