Stunting the growth of drizzle drops

Christopher M. Hartman, Jerry Y. Harrington

Research output: Contribution to journalComment/debate

Abstract

The effect of solar heating on drop growth was examined using a Lagrangian parcel model with detailed microphysics. Results show that since solar heating increases rapidly with drop size, larger drops tend to evaporate preferentially throughout the cloud, narrowing the drop-size spectrum. This narrowing, and its influence on drizzle production, depends on the concentration of drops in the cloud: at intermediate drop concentrations, solar heating suppresses drizzle production; at larger concentrations, solar heating has a weaker effect and infrared cooling can enhance drizzle production.

Original languageEnglish (US)
Pages (from-to)910-911
Number of pages2
JournalBulletin of the American Meteorological Society
Volume86
Issue number7
StatePublished - Jul 1 2005

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drizzle
cooling
solar heating
effect

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

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Stunting the growth of drizzle drops. / Hartman, Christopher M.; Harrington, Jerry Y.

In: Bulletin of the American Meteorological Society, Vol. 86, No. 7, 01.07.2005, p. 910-911.

Research output: Contribution to journalComment/debate

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AU - Harrington, Jerry Y.

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N2 - The effect of solar heating on drop growth was examined using a Lagrangian parcel model with detailed microphysics. Results show that since solar heating increases rapidly with drop size, larger drops tend to evaporate preferentially throughout the cloud, narrowing the drop-size spectrum. This narrowing, and its influence on drizzle production, depends on the concentration of drops in the cloud: at intermediate drop concentrations, solar heating suppresses drizzle production; at larger concentrations, solar heating has a weaker effect and infrared cooling can enhance drizzle production.

AB - The effect of solar heating on drop growth was examined using a Lagrangian parcel model with detailed microphysics. Results show that since solar heating increases rapidly with drop size, larger drops tend to evaporate preferentially throughout the cloud, narrowing the drop-size spectrum. This narrowing, and its influence on drizzle production, depends on the concentration of drops in the cloud: at intermediate drop concentrations, solar heating suppresses drizzle production; at larger concentrations, solar heating has a weaker effect and infrared cooling can enhance drizzle production.

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