Results 301 to 310 of about 213,098 (343)

The Tropical Mixed Layer and Cumulus Parameterization

Journal of the Atmospheric Sciences, 1974
Abstract A model of the convectively driven mixed layer is used to interpret BOMEX Phase III data. It is concluded that the compensating downdrafts and the moisture transports due to trade cumulus must be included explicitly in any theory of the dynamics of the tropical mixed layer.
openaire   +1 more source

Parameterization of Entrainment Rate and Mass Flux in Continental Cumulus Clouds: Inference From Large Eddy Simulation

Journal of Geophysical Research: Atmospheres, 2019
Large eddy simulation with contrasting environmental humidity is used to study entrainment and detrainment rates and convective mass flux during the development stages of continental deep cumulus clouds.
S. Bera, T. Prabha
semanticscholar   +1 more source

Generalization of Albrecht's Cumulus Cloud Amount Parameterization

Journal of the Atmospheric Sciences, 1996
Abstract A diagnostic parameterization of cumulus cloud amount based on the decay of passive cloud material is reinvestigated. It is shown that assumptions previously made in the derivation may be relaxed by taking into account the heat budget of the decay process.
openaire   +1 more source

A sensitivity study of WRF model microphysics and cumulus parameterization schemes for the simulation of tropical cyclones using GPM radar data

Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences, 2021
Harish Baki, Sandeep Chinta, C. Balaji, B. Srinivasan   +3 more
semanticscholar   +1 more source

A General Form of Kuo's Cumulus Parameterization

Monthly Weather Review, 1985
Abstract A formulation of Kuo's cumulus parameterization is described which satisfies arbitrary vertical profiles of apparent heat source (Q1) and apparent moisture sink (Q2). The approach requires little calculation, and for a given Q1 and Q2, contains only one parameter, the partitioning of available moisture between storage and precipitation.
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A Midlatitude Cumulus Parameterization that Incorporates Cloudtop Entrainment

Monthly Weather Review, 1987
Abstract In this paper we present a Kuo-type cumulus parameterization that includes a steady state one-dimensional cloudtop entraining cloud model and ice phase microphysics. Heating profiles computed with this parameterization are compared with those computed using the Kuo scheme and Anthes' scheme using data from SESAME-79.
Gregory R. Taylor, Marcia B. Baker
openaire   +1 more source

A cumulus parametrization with a prognostic closure

Quarterly Journal of the Royal Meteorological Society, 1998
AbstractThe paper describes the introduction of a prognostic cumulus kinetic energy (CKE) as a replacement for the quasi‐equilibrium closure hypothesis of Arakawa and Schubert (AS).In the original version of the AS parameterization, the cloud work function, a measure of the convective available potential energy, is assumed to be maintained at ‘small ...
Dzong‐Ming Pan, Davi D. A. Randall
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Prognostic Evaluation of Assumptions Used by Cumulus Parameterizations

Monthly Weather Review, 1993
Abstract Using a spectral-type cumulus parameterization that includes moist downdrafts within a three-dimensional mesoscale model, various disparate closure assumptions are systematically tested within the generalized framework of dynamic control, static control, and feedback.
openaire   +1 more source

Response of Cumulus Clouds to Large-Scale Forcing Using the Arakawa-Schubert Cumulus Parameterization

Journal of the Atmospheric Sciences, 1987
Abstract A cumulus parameterization scheme developed by Arakawa and Schubert was tested through a semiprognostic approach using two different datasets: one for a tropical cloud band, the other for tropical composite easterly wave disturbances. Both were observed in GARP (Global Atmospheric Research Program) Atlantic Tropical Experiment using a ...
Chih-Yue Jim Kao, Yoshi Ogura
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On Parameterization of Turbulent Transport in Cumulus Clouds

Journal of the Atmospheric Sciences, 1975
Abstract A one-dimensional time-dependent cumulus model is developed and discussed. Data predicted by the model along with a bulk entrainment model are compared with a case study observation and Warner's mean profile of Q/QA. While a great deal of the discrepancy between observed and predicted data can he attributed to the transient nature of ...
openaire   +1 more source