Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Richard K. Scott"'
We revisit the classical problem of the self-similar, finite-time collapse of three vortices. We extend the study to the generalised two-dimensional Euler equations as well as the generalised three-dimensional quasi-geostrophic equations. In both the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2458d8406efdb677b49be33c71715f06
https://hdl.handle.net/10023/25501
https://hdl.handle.net/10023/25501
Publikováno v:
Journal of Fluid Mechanics. 930
Based on an assumption of strongly inhomogeneous potential vorticity mixing in quasi-geostrophic $\beta$ -plane turbulence, a relation is obtained between the mean spacing of latitudinally meandering zonal jets and the total kinetic energy of the flo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6cab7f890d516ea01bb2fc573d59c11
https://doi.org/10.1017/jfm.2021.898
https://doi.org/10.1017/jfm.2021.898
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44cd1bafa1049e65f13a52d82cf35dc9
https://doi.org/10.1103/physrevfluids.5.074601
https://doi.org/10.1103/physrevfluids.5.074601
A hierarchy of idealized models is used to investigate the roles of Hadley cell forcing and latent heat release from carbon dioxide condensation in determining the annular potential vorticity structure of the Martian winter polar vortex. The angular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e5b665d713d2343b0351f139d1f902
https://hdl.handle.net/10023/23110
https://hdl.handle.net/10023/23110
Autor:
B. H. Burgess, Richard K. Scott
Publikováno v:
Journal of Fluid Mechanics. 850:844-874
We study how the properties of forcing and dissipation affect the scaling behaviour of the vortex population in the two-dimensional turbulent inverse energy cascade. When the flow is forced at scales intermediate between the domain and dissipation sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65cefed4460cfb863fe3fc3e570ab990
https://doi.org/10.1017/jfm.2018.473
https://doi.org/10.1017/jfm.2018.473
Autor:
Luke A. Hatfield, Richard K. Scott
We investigate persistent low-frequency variability of the stratospheric winter polar vortex in a rotating spherical shallow-water model under the action of topographic wave-forcing and radiative cooling to a simple time-varying equilibrium state rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d76435f94135c5bcf858be77fd5cdb5
https://hdl.handle.net/10023/20411
https://hdl.handle.net/10023/20411
Autor:
David G. Dritschel, Richard K. Scott
Publikováno v:
Journal of Fluid Mechanics. 863
Numerical simulations of the surface quasigeostrophic patch indicate the development of a scale-invariant singularity of the boundary curvature in finite time, with some evidence of universality across a variety of initial conditions. At the time of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58a7c21d9d6f093311ecacb43fce72fd
https://doi.org/10.1017/jfm.2019.7
https://doi.org/10.1017/jfm.2019.7
Autor:
Richard K. Scott
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 142:1948-1957
A new class of persistent vacillations of the winter polar vortex, under the action of topographic wave forcing and radiative cooling, is identified in numerical integrations of the rotating shallow water equations. The vacillations are obtained prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58d8224f538af54a11db53df6a5f9413
https://doi.org/10.1002/qj.2788
https://doi.org/10.1002/qj.2788