A physical parametrization of coupled transverse dynamics based on generalized Courant–Snyder theory and its applications

2009 ◽  
Vol 16 (5) ◽  
pp. 050705 ◽  
Author(s):  
Hong Qin ◽  
Ronald C. Davidson
Keyword(s):  
Physical Parametrization

scholarly journals Multi-Higgs doublet models: physical parametrization, sum rules and unitarity bounds

2017 ◽  
Vol 2017 (11) ◽  
Author(s):  
Miguel P. Bento ◽  
Howard E. Haber ◽  
J. C. Romão ◽  
João P. Silva
Keyword(s):  
Sum Rules ◽  
Higgs Doublet ◽  
Physical Parametrization

scholarly journals Supplementary material to "Impacts of physical parametrization on prediction of ethane concentrations for oil and gas emissions"

2018 ◽  
Author(s):  
Maryam Abdi-Oskouei ◽  
Gabriele Pfister ◽  
Frank Flocke ◽  
Negin Sobhani ◽  
Pablo Saide ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Gas Emissions ◽  
Supplementary Material ◽  
Physical Parametrization

scholarly journals On the physical parametrization and magnetic analogs of the Emparan–Teo dihole solution

2008 ◽  
Vol 662 (2) ◽  
pp. 213-216 ◽  
Author(s):  
J.A. Cázares ◽  
H. García-Compeán ◽  
V.S. Manko
Keyword(s):  
Physical Parametrization

scholarly journals Independent perturbations for physics parametrization tendencies in a convection-permitting ensemble (pSPPT)

2019 ◽  
Vol 12 (1) ◽  
pp. 261-273 ◽  
Author(s):  
Clemens Wastl ◽  
Yong Wang ◽  
Aitor Atencia ◽  
Christoph Wittmann
Keyword(s):  
Ensemble Forecasting ◽  
Limited Area ◽  
Test Cases ◽  
Shallow Convection ◽  
Forecasting System ◽  
The Stability ◽  
Physical Parametrization ◽  
Positive Effect ◽  
Total Model ◽  
Stochastic Physics

Abstract. A modification of the widely used SPPT (Stochastically Perturbed Parametrisation Tendencies) scheme is proposed and tested in a Convection-permitting – Limited Area Ensemble Forecasting system (C-LAEF) developed at ZAMG (Zentralanstalt für Meteorologie und Geodynamik). The tendencies from four physical parametrization schemes are perturbed: radiation, shallow convection, turbulence, and microphysics. Whereas in SPPT the total model tendencies are perturbed, in the present approach (pSPPT hereinafter) the partial tendencies of the physics parametrization schemes are sequentially perturbed. Thus, in pSPPT an interaction between the uncertainties of the different physics parametrization schemes is sustained and a more physically consistent relationship between the processes is kept. Two configurations of pSPPT are evaluated over two separate months (one in summer and another in winter). Both schemes increase the stability of the model and lead to statistically significant improvements in the probabilistic performance compared to a reference run without stochastic physics. An evaluation of selected test cases shows that the positive effect of stochastic physics is much more pronounced on days with high convective activity. Small discrepancies in the humidity analysis can be dedicated to the use of a very simple supersaturation adjustment. This and other adjustments are discussed to provide some suggestions for future investigations.

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