scholarly journals Linear response functions of two convective parameterization schemes

2013 ◽  
Vol 5 (3) ◽  
pp. 510-541 ◽  
Author(s):  
Michael J. Herman ◽  
Zhiming Kuang
Keyword(s):  
Linear Response ◽  
Response Functions ◽  
Convective Parameterization ◽  
Parameterization Schemes

scholarly journals Calculating linear-response functions for finite temperatures on the basis of the alloy analogy model

2015 ◽  
Vol 91 (16) ◽  
Author(s):  
H. Ebert ◽  
S. Mankovsky ◽  
K. Chadova ◽  
S. Polesya ◽  
J. Minár ◽  
...  
Keyword(s):  
Linear Response ◽  
Response Functions

scholarly journals NON-LINEAR RESPONSE FUNCTIONS FOR TRANSVERSELY ISOTROPIC ELASTIC MEMBRANES/NETIESINĖS MEDŽIAGOS DARBĄ APIBŪDINANČIOS FUNKCIJOS SKERSAI IZOTROPINEI TAMPRIAI MEMBRANAI

2001 ◽  
Vol 7 (5) ◽  
pp. 345-351
Author(s):  
Rasa Kazakevičiūtė-Makovska
Keyword(s):  
Linear Response ◽  
Transversely Isotropic ◽  
Response Functions ◽  
Non Linear ◽  
Elastic Membranes

Membranai, pagamintai iš medžiagos, kurios fizinės savybės aprašomos deformacijos energijos funkcija W tūrio vienetui, deformacijos energijos funkcija Φ membranos vidurinio paviršiaus ploto vienetui gaunama integruojant funkciją W pagal membranos storį. (Nagrinėjama deformacijos energijos funkcija W neturi nustatytų apribojimų ir yra leidžiamos bet kokio dydžio deformacijos.) Funkcijos Φ tiksli išraiška yra išvesta skersai izotropinei medžiagai, kai izotropijos ašis sutampa su membranos nedeformuoto vidurinio paviršiaus normale. Parodoma, kad skersai izotropinei medžiagai gauta dvimatė membranos darbą apibūdinanti funkcija yra izotropinė ir išsamiai ištirta gautų fizinių priklausomybių struktūra. Tokios fizinės priklausomybės yra išvestos keturiems kontinuumo mechanikoje dažnai nagrinėjamų medžiagų tipams.

scholarly journals Charge-current correlation equalities for quantum systems far from equilibrium

2019 ◽  
Vol 6 (6) ◽  
Author(s):  
Dragi Karevski ◽  
Gunter Schütz
Keyword(s):  
Linear Response ◽  
Space Dimension ◽  
Lattice Models ◽  
Quantum Systems ◽  
Translation Invariance ◽  
Response Functions ◽  
Current Correlation ◽  
Far From Equilibrium ◽  
Conserved Currents ◽  
A Current

We prove that a recently derived correlation equality between conserved charges and their associated conserved currents for quantum systems far from equilibrium [O.A. Castro-Alvaredo, B. Doyon, and T. Yoshimura, Phys. Rev. X 6, 041065 (2016)], is valid under more general conditions than assumed so far. Similar correlation identities, which in generalized Gibbs ensembles give rise to a current symmetry somewhat reminiscent of the Onsager relations, turn out to hold also in the absence of translation invariance, for lattice models, and in any space dimension, and to imply a symmetry of the non-equilibrium linear response functions.

scholarly journals Why Does Deep Convection Have Different Sensitivities to Temperature Perturbations in the Lower versus Upper Troposphere?

2018 ◽  
Vol 76 (1) ◽  
pp. 27-41 ◽  
Author(s):  
Yang Tian ◽  
Zhiming Kuang
Keyword(s):  
Water Content ◽  
Vertical Velocity ◽  
Liquid Water ◽  
Deep Convection ◽  
Liquid Water Content ◽  
Cloud Base ◽  
Base Temperature ◽  
Upper Troposphere ◽  
Convective Parameterization ◽  
Parameterization Schemes

Abstract Previous studies have documented that deep convection responds more strongly to above-the-cloud-base temperature perturbations in the lower troposphere than to those in the upper troposphere, a behavior that is important to the dynamics of large-scale moist flows, such as convectively coupled waves. A number of factors may contribute to this differing sensitivity, including differences in buoyancy, vertical velocity, and/or liquid water content in cloud updrafts in the lower versus upper troposphere. Quantifying the contributions from these factors can help to guide the development of convective parameterization schemes. We tackle this issue by tracking Lagrangian particles embedded in cloud-resolving simulations within a linear response framework. The results show that both the differences in updraft buoyancy and vertical velocity play a significant role, with the vertical velocity being the more important, and the effect of liquid water content is only secondary compared to the other two factors. These results indicate that cloud updraft vertical velocities need to be correctly modeled in convective parameterization schemes in order to properly account for the differing convective sensitivities to temperature perturbations at different heights of the free troposphere.

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