Models of cloud-topped mixed layers under a strong inversion

@article{Lilly1968ModelsOC,
  title={Models of cloud-topped mixed layers under a strong inversion},
  author={Douglas K. Lilly},
  journal={Quarterly Journal of the Royal Meteorological Society},
  year={1968},
  volume={94},
  pages={292-309}
}
  • D. Lilly
  • Published 1 July 1968
  • Environmental Science
  • Quarterly Journal of the Royal Meteorological Society
Theoretical models are constructed with the aim of relating, explaining and predicting features of a radiatively active turbulent cloud layer over the sea and under a strong subsidence inversion. Both dry aerosol clouds (no phase change) and wet clouds (with a phase change and latent heat exchanges) are considered. For the wet cloud case an important element of the theory is the requirement that the wet-bulb potential temperature must increase upwards in the inversion. For both cases… Expand

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References

SHOWING 1-10 OF 18 REFERENCES
Thermal Equilibrium of the Atmosphere with a Convective Adjustment
Abstract The states of thermal equilibrium (incorporating an adjustment of super-adiabatic stratification) as well as that of pure radiative equilibrium of the atmosphere are computed as theExpand
Observations from aircraft of temperatures and humidities near stratocumulus clouds
Observations from aircraft of the Meteorological Research Flight flying near stratocumulus clouds showed steep inversions and hydrolapses directly above the tops of the clouds. Turbulence wasExpand
Wave Clouds in the Marine Layer Upwind of Pt. Sal, California
Abstract An Instrumented light plane was flow through three wave clouds formed at the upper boundary of the marine layer just upwind of a headland, Pt. Sal, along the California coast. TemperaturesExpand
TEMPERATURE CHANGES DURING FORMATION AND DISSIPATION OF WEST COAST STRATUS
Abstract At three-hourly intervals during three 24- to 48-hour periods in the summer of 1943, radiosonde observations were made at the University of California at Los Angeles; to ascertain theExpand
Radiative Transfer in Water Clouds in the 10-Micron Window Region
Abstract The equation of radiative transfer as applied to water clouds in the window region near 10 microns is solved numerically by using values of the phase function and albedo for singleExpand
Control of inversion height by surface heating
Viscous dissipation is inadequate to account for the destruction of all the thermal turbulence generated by upward transfer of heat in a deep convection layer. It is suggested that the surplusExpand
Modification of the Marine Layer over Coastal Southern California
Abstract The modification and eventual destruction of the marine layer by heating from below is documented by measuring the temperature and humidity fields in a vertical section from the coast ofExpand
Scale Analysis of Deep and Shallow Convection in the Atmosphere
Abstract The approximate equations of motion derived by Batchelor in 1953 are derived by a formal scale analysis, with the assumption that the percentage range in potential temperature is small andExpand
REFLECTION, ABSORPTION, AND TRANSMISSION OF INSOLATION BY STRATUS CLOUD
Abstract Using Eppley pyrheliometers mounted on a blimp, observations were made of the upward and downward flux of short-wave radiation above, in, and below coastal stratus throughout the summer ofExpand
Thermal Equilibrium of the Atmosphere with a Given Distribution of Relative Humidity
Abstract Radiative convective equilibrium of the atmosphere with a given distribution of relative humidity is computed as the asymptotic state of an initial value problem. The results show that itExpand
...
1
2
...