Estimation of entrainment rate in simple models of convective clouds

By D. Gregory. 2001

167 citations recorded by the source corpus.

Subfields: Atmospheric Science, Environmental Engineering, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/b0cec7f9f2bda3085d8974b856523c12dc01d725

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Citations in the corpus

Will moist convection be stronger in a warmer climate? (2007, methodology): “We diagnose convective updraft speed wc(z) following Gregory [2001] :”
A New Parameterization for Shallow Cumulus Convection and Its Application to Marine Subtropical Cloud-Topped Boundary Layers. Part I: Description and 1D Results (2004, background): “Previous authors (Simpson and Wiggert 1969; Gregory 2001; Siebesma et al. 2003) have parameterized P as a linear combination the first two terms on the right-hand side of (15), yielding”
Entrainment and detrainment in cumulus convection: an overview (2013, unknown): “(2008), Nordeng(1994) andGregory and Rowntree (1990) can be ordered in terms of the right-hand side (RHS) of ( 3).”
Improved Climate Simulation by MIROC5: Mean States, Variability, and Climate Sensitivity (2010, methodology): “Its formulation is similar to the scheme by Gregory (2001), who assumed that a certain fraction of buoyancy-generated energy is consumed by the entrainment process.”
Size Statistics of Cumulus Cloud Populations in Large-Eddy Simulations (2003, methodology): “Second, convection schemes in GCMs are used to predict the vertical transport of heat, moisture, and momentum by convective cloud fields (e.g., Arakawa and Schubert 1974; Tiedtke 1989; Gregory 2001).”
The Tropical Subseasonal Variability Simulated in the NASA GISS General Circulation Model (2012, methodology): “1) Convective entrainment and updraft speed are diagnosed using the parameterization of Gregory (2001), as described in Del Genio et al. (2007), with different values of the entrainment coefficients to capture less entraining and more entraining components of the mass flux.”
Configuration and assessment of the GISS ModelE2 contributions to the CMIP5 archive (2014, methodology): “In moist convection, entrainment rates and cumulus updraft speeds are calculated interactively as a function of parcel buoyancy and updraft speed [Gregory, 2001; Del Genio et al., 2007].”
A Combined Eddy-Diffusivity Mass-Flux Approach for the Convective Boundary Layer (2007, methodology): “The formulation (15) is identical to formulations used in moist convection schemes (Gregory 2001) but with different coefficients.”
The Role of Entrainment in the Diurnal Cycle of Continental Convection (2010, methodology): “For example, J. Wu et al. (2009) found that break period deep convective updraft speed profiles in an SCM with the Gregory (2001) entrainment parameterization and constant C were reasonable up to ;300 mb but became unrealistically strong at higher levels.”
A Multiparcel Model for Shallow Cumulus Convection (2002, methodology): “…the mixing terms using LES Finding the mixing rate between cumulus clouds and the air surrounding them is one of the major issues in parameterizing cumulus convection, and various parameterizations have been formulated (Nordeng 1994; Siebesma 1998; Grant and Brown 1999; Gregory 2001).”
A Unified Convection Scheme (UNICON). Part I: Formulation (2014, background): “…other than the constant R̂, such as the geometric height, updraft buoyancy, updraft vertical velocity, and the relative humidity of the environment (Gregory 2001; Neggers et al. 2002; Bechtold et al. 2008; PB09; de Rooy and Siebesma 2010; Stirling and Stratton 2012; Dawe and Austin 2013) for…”
Intercomparison and evaluation of cumulus parametrizations under summertime midlatitude continental conditions (2002, methodology): “…mass ux (Hack 1994) The deep convection scheme applicable to all types of convection Scripps ZM No MOUM Bulk mass ux (Gregory and Rowntree 1990; Gregory 1995) The deep convection scheme applicable to all types of convection The bulk entrainment rate as a function of height is the same as a…”
CORRIGENDUM of the MJO Transition from Shallow to Deep Convection in Cloudsat-Calipso Data and GISS GCM Simulations (2012, methodology): “First, convective entrainment and updraft speed are diagnosed using the parameterization of Gregory (2001), as described in Del Genio et al. (2007).”
A mass-flux cumulus parameterization scheme for large-scale models: description and test with observations (2012, background): “2002), an inverse-height relationship (Jakob and Siebesma 2003; Zhang 2009), a function with parcel buoyancy and inversely as the square of the updraft speed (Gregory 2001) or decreasing over the course of the day (Grabowski et al.”
A Large Eddy Simulation Intercomparison Study of Shallow Cumulus Convection (2003, methodology): “This ratio was further explored by Brown (1999a) who showed that it increases with stronger shear.”