Publication Abstracts

Zhou et al. 2018

Zhou, X., A.S. Ackerman, A.M. Fridlind, and P. Kollias, 2018: Simulation of mesoscale cellular convection in marine stratocumulus. Part I: Drizzling conditions. J. Atmos. Sci., 75, 257-274, doi:10.1175/JAS-D-17-0070.1.

This study uses eddy-permitting simulations to investigate the mechanisms that promote mesoscale variability of moisture in drizzling stratocumulus-topped marine boundary layers. Simulations show that precipitation tends to increase horizontal scales. Analysis of terms in the prognostic equation for total water mixing ratio variance indicates that moisture stratification plays a leading role in setting horizontal scales. This result is supported by simulations in which horizontal mean thermodynamic profiles are strongly nudged to their initial well-mixed state, which limits cloud scales. It is found that the spatial variability of sub-cloud moist cold pools surprisingly tends to respond to, rather than determine, the mesoscale variability, which may distinguish them from dry cold pools associated with deeper convection. Simulations also indicate that moisture stratification increases cloud scales specifically by increasing latent heating within updrafts, which increases updraft buoyancy and favors greater horizontal scales.

Export citation: [ BibTeX ] [ RIS ]

BibTeX Citation

@article{zh06200a,
  author={Zhou, X. and Ackerman, A. S. and Fridlind, A. M. and Kollias, P.},
  title={Simulation of mesoscale cellular convection in marine stratocumulus. Part I: Drizzling conditions},
  year={2018},
  journal={J. Atmos. Sci.},
  volume={75},
  pages={257--274},
  doi={10.1175%2FJAS-D-17-0070.1},
}

[ Close ]

RIS Citation

TY  - JOUR
ID  - zh06200a
AU  - Zhou, X.
AU  - Ackerman, A. S.
AU  - Fridlind, A. M.
AU  - Kollias, P.
PY  - 2018
TI  - Simulation of mesoscale cellular convection in marine stratocumulus. Part I: Drizzling conditions
JA  - J. Atmos. Sci.
VL  - 75
SP  - 257
EP  - 274
DO  - 10.1175%2FJAS-D-17-0070.1
ER  -

[ Close ]

• Return to 2018 Publications

• Return to Publications Homepage