Marine boundary layer structure and fractional cloudiness

Bruce A Albrecht, M. P. Jensen, W. J. Syrett

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Radiosonde data collected during the First International Satellite Cloud Climatology Project (ISCCP) Regional Experiment (FIRE), 1987, the Atlantic Stratocumulus Transition Experiment (ASTEX), 1992, and the Tropical Instability and Waves Experiment (TIWE), 1990, were used to develop four composite thermodynamic soundings of the marine boundary layer for cloud conditions ranging from solid stratocumulus to trade cumulus and sea surface temperatures ranging from 16 degrees to 27 degrees C. Average cloud fraction and cloud base height for the composite soundings were estimated using laser ceilometers located at each of the four sites. The effect of cloud top entrainment on fractional cloudiness was evaluated. For the four composite soundings the fractional cloudiness decreases as the slope of the normalized w-theta mixing line increases (greater instability), but this decrease is 4 times less than that from previous studies. Fractional cloudiness diagnosed from parameterizations using cloud layer relative humidity compares well with the observed mean cloudiness. (from Authors)

Original languageEnglish (US)
JournalJournal of Geophysical Research
Volume100
Issue numberD7
StatePublished - 1995
Externally publishedYes

Fingerprint

cloud cover
boundary layers
Boundary layers
boundary layer
sounding
stratocumulus
composite materials
cloud height indicators
ISCCP Project
FIRE (climatology)
Composite materials
radiosondes
sea surface temperature
Radiosondes
Climatology
entrainment
Air entrainment
parameterization
experiment
Experiments

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Albrecht, B. A., Jensen, M. P., & Syrett, W. J. (1995). Marine boundary layer structure and fractional cloudiness. Journal of Geophysical Research, 100(D7).

Marine boundary layer structure and fractional cloudiness. / Albrecht, Bruce A; Jensen, M. P.; Syrett, W. J.

In: Journal of Geophysical Research, Vol. 100, No. D7, 1995.

Research output: Contribution to journalArticle

Albrecht, BA, Jensen, MP & Syrett, WJ 1995, 'Marine boundary layer structure and fractional cloudiness', Journal of Geophysical Research, vol. 100, no. D7.
Albrecht, Bruce A ; Jensen, M. P. ; Syrett, W. J. / Marine boundary layer structure and fractional cloudiness. In: Journal of Geophysical Research. 1995 ; Vol. 100, No. D7.
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