Zobrazeno 1 - 10
of 47
pro vyhledávání: '"J. G. Esler"'
Autor:
Ramli, J. G. Esler
Publikováno v:
Geoscientific Model Development, Vol 9, Iss 7, Pp 2441-2457 (2016)
A rigorous methodology for the evaluation of integration schemes for Lagrangian particle dispersion models (LPDMs) is presented. A series of one-dimensional test problems are introduced, for which the Fokker–Planck equation is solved numerically us
Externí odkaz:
https://doaj.org/article/5151946cf12f40e6835579a60ffb2024
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 11, Pp 5477-5493 (2014)
A new methodology for the formulation of an adjoint to the transport component of the chemistry transport model TOMCAT is described and implemented in a new model, RETRO-TOM. The Eulerian backtracking method is used, allowing the forward advection sc
Externí odkaz:
https://doaj.org/article/1527577f6e0f4632b9aec0ac8a0284de
Publikováno v:
Nonlinear Processes in Geophysics, Vol 20, Iss 2, Pp 239-248 (2013)
The fluctuation-dissipation theorem (FDT) has been proposed as a method of calculating the response of the earth's atmosphere to a forcing. For this problem the high dimensionality of the relevant data sets makes truncation necessary. Here we propose
Externí odkaz:
https://doaj.org/article/58bd51833e1e4d79831e3a4dddb5de75
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 19, Pp 7505-7518 (2009)
A high resolution chemical transport model of the marine boundary layer is designed in order to investigate the detailed chemical evolution of a ship plume in a tropical location. To estimate systematic errors due to finite model resolution, otherwis
Externí odkaz:
https://doaj.org/article/fe50718041814ef0bf49112bcf7e5cdc
Publikováno v:
Atmospheric Chemistry and Physics, Vol 4, Iss 7, Pp 1781-1795 (2004)
Limited resolution in chemistry transport models (CTMs) is necessarily associated with systematic errors in the calculated chemistry, due to the artificial mixing of species on the scale of the model grid (grid-averaging). Here, the errors in calcula
Externí odkaz:
https://doaj.org/article/6cd1bed4bc7245ea80a59000f0600cec
Autor:
J. G. Esler, E.J. Goldsmith
Publikováno v:
Journal of Fluid Mechanics. 923
The question of how finite-amplitude, small-scale topography affects small-amplitude motions in the ocean is addressed in the framework of the rotating shallow water equations. The extent to which the dispersion relations of Poincare, Kelvin and Ross
Autor:
M. Mester, J. G. Esler
Publikováno v:
Journal of the Atmospheric Sciences. 77:1167-1180
Elliptical diagnostics provide dynamical and climatological information about the behavior of the Arctic and Antarctic stratospheric polar vortices. Here Kida’s model, describing the evolution of a uniform vortex in a linear, but possibly unsteady,
Autor:
J. G. Esler, Richard K. Scott
Publikováno v:
Physical Review Fluids. 5
An emergent property of decaying two-dimensional turbulence is shown to be a weak but persistent statistical heating, or tendency towards clustering of like-signed vortices. The rate of this heating, which is driven by changes to the vortex populatio
Autor:
M. R. Turner, J. G. Esler, John Norbury, Jacques Vanneste, Bin Cheng, Jingrui Cheng, M. J. P. Cullen
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 143:2925-2939
This paper presents a single-column model of moist atmospheric convection. The problem is formulated in terms of conservation laws for mass, moist potential temperature and specific humidity of air parcels. A numerical adjustment algorithm is devised
Autor:
J. G. Esler, H. M. Ramli
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 143:1721-1733
The problem of shear dispersion in the atmospheric boundary layer (ABL) is revisited. The aim is to improve understanding of how and why the behaviour of state-of-the-art ‘random flight’ Lagrangian particle dispersion models (RFMs) can differ fro