Detailed Investigation of the Self-Aggregation of Convection in Cloud-Resolving Simulations

By C. Muller, I. Held. 2012

331 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/ba6e13b62f63e47a84ddd65c83809f28efd94af4

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Citations in the corpus

Self‐aggregation of convection in long channel geometry (2014, methodology): “…sensitivity test, clouds contribute most of the initial positive longwave feedback in the driest regions, as in the channel simulations and also in agreement with Muller and Held (2012), who used the CAM radiation scheme and found that self-aggregation resulted from longwave cooling by low clouds.”
Convective self‐aggregation, cold pools, and domain size (2013, background): “…and Emanuel (Aggregation of convection and the regulation of tropical climate; preprint: https://ams.confex.com/ams/pdfpapers/168418.pdf); Muller and Held, 2012] with cloud-resolving models (CRMs) have shown that horizontally quasi-homogeneous tropical convection can be unstable,…”
Rotating radiative‐convective equilibrium simulated by a cloud‐resolving model (2013, methodology): “CRMs have also been used quite extensively to study problems related to the RCE idealization of the tropics [e.g., Held et al., 1993; Islam et al., 1993; Robe and Emanuel, 1996; Tompkins and Craig, 1998; Xu and Randall, 1999; Tao et al., 1999; Grabowski, 2006; Romps, 2011].”
Uncertainty in Model Climate Sensitivity Traced to Representations of Cumulus Precipitation Microphysics (2016, methodology): “However, model simulations of convective aggregation in RCE are sensitive to many details, including domain size, resolutions, and initial conditions (e.g., Bretherton et al. 2005; Muller and Held 2012).”
What favors convective aggregation and why? (2015, background): “…that has received attention recently is the self-aggregation of convection [see, for instance, Held et al., 1993; Raymond and Zeng, 2000; Bretherton et al., 2005; Sobel et al., 2007; Muller and Held, 2012; Tobin et al., 2012; Craig and Mack, 2013; Jeevanjee and Romps, 2013; Emanuel et al., 2014].”
Convective Self-Aggregation in Numerical Simulations: A Review (2017, methodology): “Although strong longwave cooling in the dry regions, at least partially due to low clouds, was found to be crucial for the onset of aggregation, for maintenance, low cloud longwave cooling is not necessary (Muller and Held, 2012; Muller and Bony, 2015).”
Radiative‐convective instability (2014, methodology): “…to run cloud-resolving models with realistic tropical sea surface temperatures, which by coincidence or not are close to the critical temperature for self-aggregation, may explain why the phenomenon seems exquisitely sensitive to numerical and physical model parameters [Muller and Held, 2012].”
Global‐scale convective aggregation: Implications for the Madden‐Julian Oscillation (2015, background): “Some form of cloud-longwave feedback has generally been found to be essential, although the relative importance of high versus low clouds is disputed [Bretherton et al., 2005; Muller and Held, 2012; Muller and Bony, 2015].”
Organization of tropical convection in low vertical wind shears: Role of updraft entrainment (2017, methodology): “All CRM simulations use a 2 km horizontal spacing [as used by Tompkins and Craig , 1998a; Bretherton et al., 2005; Muller and Held , 2012] and no convective parameterization scheme is used.”
Physical mechanisms controlling self‐aggregation of convection in idealized numerical modeling simulations (2013, methodology): “Our finding contradicts the results of Muller and Held (2012); in their study, aggregation still occurred when the water vapor that entered the longwave calculation was homogenized.”
Climate and climate change in a radiative‐convective equilibrium version of ECHAM6 (2013, background): “[21] A number of studies suggest that the mean RH of the tropical atmosphere depends on the degree of convective aggregation [Bretherton et al., 2005; Muller and Held, 2012; Tobin et al., 2012], with more aggregation leading to an on average drier troposphere.”
Physical mechanisms controlling the initiation of convective self‐aggregation in a General Circulation Model (2015, methodology): “This study thus shows that the phenomenon of self-aggregation pointed out in CRMs [Bretherton et al., 2005; Held et al., 2007; Muller and Held, 2012; Wing and Emanuel, 2014; Wing and Cronin, 2015; Muller and Bony, 2015] and a few other GCMs [Held and Zhao, 2008; Becker and Stevens, 2014; Shi and Bre”