Results 1 to 10 of about 6,971 (293)
Simulating deep convection with a shallow convection scheme [PDF]
Atmospheric Chemistry and Physics, 2011 Convective processes profoundly affect the global water and energy balance of our planet but remain a challenge for global climate modeling. Here we develop and investigate the suitability of a unified convection scheme, capable of handling both shallow ...
C. Hohenegger, C. S. Bretherton
doaj +7 more sources
Is Shallow Convection Sensitive to Environmental Heterogeneities? [PDF]
Geophysical Research Letters, 2019 The key assumption underlying convection parameterizations is that rising plumes develop in a horizontally homogeneous environment. With this in mind, we investigate the impact of environmental cloud layer heterogeneities on shallow convection using ...
Marcin J Kurowski +2 more
exaly +4 more sources
Atmosphere, 2023 Idealized large-eddy simulations of shallow convection often utilize horizontally periodic computational domains. The development of precipitation in shallow cumulus convection changes the spatial structure of convection and creates large-scale ...
Oumaïma Lamaakel +2 more
exaly +4 more sources
Journal of Advances in Modeling Earth Systems, 2020 In order to improve the physical consistency between shallow and deep convection, we modify the deep convective closure in the Community Atmosphere Model version 5 (CAM5) coupled with a third‐order turbulence closure parameterization (i.e., Cloud Layers ...
Ben Yang, Minghuai Wang, Guang J Zhang
exaly +2 more sources
Improving the representation of shallow cumulus convection with the simplified-higher-order-closure–mass-flux (SHOC+MF v1.0) approach [PDF]
Geoscientific Model Development, 2023 Parameterized boundary layer turbulence and moist convection remain some of the largest sources of uncertainty in general circulation models. High-resolution climate modeling aims to reduce that uncertainty by explicitly attempting to resolve deep moist ...
M. J. Chinita +11 more
doaj +1 more source
The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications [PDF]
Geoscientific Model Development, 2021 Recent developments and options in the GF (Grell and Freitas, 2014; Freitas et al., 2018) convection parameterization are presented. The parameterization has been expanded to a trimodal spectral size to simulate three convection modes: shallow, congestus,
S. R. Freitas +4 more
doaj +1 more source
Shallow cirrus convection – a source for ice supersaturation [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2014 The origin and persistence of high ice supersaturation is still not well understood. In this study, the impact of local dynamics as source for ice supersaturation inside cirrus clouds is investigated.
Peter Spichtinger
doaj +1 more source
The Environment of Precipitating Shallow Cumulus Convection [PDF]
Journal of the Atmospheric Sciences, 2009 Abstract Quantitative estimates of precipitation in a typical undisturbed trade wind region are derived from 2 months of radar reflectivity data and compared to the meteorological environment determined from soundings, surface flux, and airborne-lidar data.
Nuijens, L. +2 more
openaire +2 more sources
Parameterizing deep convection using the assumed probability density function method [PDF]
Geoscientific Model Development, 2015 Due to their coarse horizontal resolution, present-day climate models must parameterize deep convection. This paper presents single-column simulations of deep convection using a probability density function (PDF) parameterization.
R. L. Storer +7 more
doaj +1 more source
Journal of Advances in Modeling Earth Systems, 2021 We modify the Zhang‐McFarlane (ZM) deep convection scheme in the Community Atmosphere Model version 5 to couple it with a unified parameterization for boundary‐layer turbulence and shallow convection, that is, Cloud Layers Unified by Binormals (CLUBB ...
Ben Yang +6 more
doaj +1 more source