Results 51 to 60 of about 7,980 (145)
Stochastically Perturbed Parameterizations in an HRRR-Based Ensemble [PDF]
Monthly Weather Review, 2018 Abstract A stochastically perturbed parameterization (SPP) approach that spatially and temporally perturbs parameters and variables in the Mellor–Yamada–Nakanishi–Niino planetary boundary layer scheme (PBL) and introduces initialization perturbations to soil moisture in the Rapid Update Cycle land surface model was developed within the ...
Jeffrey Beck +7 more
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Stochastic parameterization of dust emission and application to convective atmospheric conditions [PDF]
Atmospheric Chemistry and Physics, 2012 We develop a parameterization scheme of convective dust emission for regional and global atmospheric models. Convective dust emission occurs in the absence of saltation as large eddies intermittently produce strong shear stresses on the surface and ...
M. Klose, Y. Shao
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Journal of Advances in Modeling Earth Systems, 2020 Unresolved temperature and salinity fluctuations interact with a nonlinear seawater equation of state to produce significant errors in the ocean model evaluation of the large‐scale density field.
Z. Stanley +5 more
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Comparison of stochastic parameterizations in the framework of a coupled ocean-atmosphere model [PDF]
Nonlinear Processes in Geophysics, 2018 Abstract. A new framework is proposed for the evaluation of stochastic subgrid-scale parameterizations in the context of MAOOAM, a coupled ocean-atmosphere model of intermediate complexity. Two physically-based parameterizations are investigated, the first one based on the singular perturbation of Markov operator, also known as homogenization.
Jonathan Demaeyer, Stéphane Vannitsem
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Journal of Advances in Modeling Earth SystemsA stochastic horizontal subgrid‐scale mixing scheme is evaluated in ensemble simulations of a tropical oceanic deep convection case using a horizontal grid spacing (Δh) of 3 km.
McKenna W. Stanford +2 more
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Eddy‐Mean Flow Interaction With a Multiple Scale Quasi Geostrophic Model
Journal of Advances in Modeling Earth Systems, 2023 Parameterization of mesoscale eddies in coarse resolution ocean models is necessary to include the effect of eddies on the large‐scale oceanic circulation.
Bruno Deremble +3 more
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Journal of Advances in Modeling Earth Systems, 2019 The cloud‐permitting model (CPM) of the superparameterized Community Atmosphere Model (SP‐CAM) is a stochastic parameterization. As reported in a companion paper, we have created a variant of SP‐CAM, called MP‐CAM, that uses the averaged feedback of 10 ...
Todd R. Jones +2 more
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Journal of Advances in Modeling Earth Systems, 2020 Stochastic parameterizations are increasingly being used in climate modeling to represent subgrid‐scale processes. While different parameterizations are being developed considering different aspects of the physical phenomena, less attention is given to ...
Federica Gugole, Christian L. E. Franzke
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A Stochastic Framework for Modeling the Population Dynamics of Convective Clouds
Journal of Advances in Modeling Earth Systems, 2018 A stochastic prognostic framework for modeling the population dynamics of convective clouds and representing them in climate models is proposed. The framework follows the nonequilibrium statistical mechanical approach to constructing a master equation ...
Samson Hagos +4 more
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Toward a stochastic parameterization of ocean mesoscale eddies
Ocean Modelling, 2014 Abstract A stochastic parameterization of ocean mesoscale eddies is constructed in order to account for the fluctuations in subgrid transport and to represent upscale turbulent cascades. Eddy-resolving simulations to derive the parameterization are performed in a quasi-geostrophic (QG) model in a double-gyre configuration.
Mana, P, Zanna, L
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