Publication Abstracts

Ferek et al. 2000

Ferek, R.J., T. Garrett, P.V. Hobbs, S. Strader, D. Johnson, J.P. Taylor, K. Nielsen, A.S. Ackerman, Y. Kogan, Q. Liu, B.A. Albrecht, and D. Babb, 2000: Drizzle suppression in ship tracks. J. Atmos. Sci., 57, 2707-2728, doi:10.1175/1520-0469(2000)057<2707:DSIST>2.0.CO;2.

Although drizzle was a relatively infrequent occurrence during the Monterey Area Ship Track study, diverse measurements from several sources produced data signals consistent with a reduction in drizzle drops in stratus clouds affected by ship effluents. Concurrent increases in liquid water in the cloud droplet size range, due to redistribution from the drizzle mode, were not always observed, possibly because of the relatively small and often negligible amounts of water in the drizzle mode. Significant changes in cloud droplet size distribution, as well as reductions in drizzle flux and concentrations of drops > 50-µm radius, were observed in ship tracks when drizzle was more uniformly present in the ambient cloud.

Radiometric measurements showed that increased droplet concentrations in ship tracks, which resulted in reduced droplet sizes, can significantly alter the liquid water path. Radar observations indicated that the reduced reflectivities of ship tracks compared with ambient clouds may be due to reductions in the concentrations of larger drops and/or reductions in the sizes of these drops. Two independent modeling studies showed decreases in drizzle in ship tracks due to the presence of smaller cloud droplets that reduced the efficiency of drop growth by collisions.

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BibTeX Citation

  author={Ferek, R. J. and Garrett, T. and Hobbs, P. V. and Strader, S. and Johnson, D. and Taylor, J. P. and Nielsen, K. and Ackerman, A. S. and Kogan, Y. and Liu, Q. and Albrecht, B. A. and Babb, D.},
  title={Drizzle suppression in ship tracks},
  journal={J. Atmos. Sci.},

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RIS Citation

ID  - fe04000r
AU  - Ferek, R. J.
AU  - Garrett, T.
AU  - Hobbs, P. V.
AU  - Strader, S.
AU  - Johnson, D.
AU  - Taylor, J. P.
AU  - Nielsen, K.
AU  - Ackerman, A. S.
AU  - Kogan, Y.
AU  - Liu, Q.
AU  - Albrecht, B. A.
AU  - Babb, D.
PY  - 2000
TI  - Drizzle suppression in ship tracks
JA  - J. Atmos. Sci.
VL  - 57
SP  - 2707
EP  - 2728
DO  - 10.1175/1520-0469(2000)057%3C2707%3ADSIST%3E2.0.CO;2
ER  -

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