Matches in SemOpenAlex for { <https://semopenalex.org/work/W2059407966> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2059407966 endingPage "984" @default.
- W2059407966 startingPage "972" @default.
- W2059407966 abstract "Abstract Large-scale chaotic stirring stretches tracer contours into filaments containing fine spatial scales until small-scale diffusive processes dissipate tracer variance. Quantification of tracer transport in such circumstances is possible through the use of Nakamura’s “effective diffusivity” diagnostics, which make clear the controlling role of stirring, rather than small-scale dissipation, in large-scale transport. Existing theory of effective diffusivity is based on a layerwise approach, in which tracer variance is presumed to cascade via horizontal (or isentropic) stirring to small-scale horizontal (or isentropic) diffusion. In most geophysical flows of interest, however, baroclinic shear will tilt stirred filamentary structures into almost-horizontal sheets, in which case the thinnest dimension is vertical; accordingly, it will be vertical (or diabatic) diffusion that provides the ultimate dissipation of variance. Here new theoretical developments define effective diffusivity in such flows. In the frequently relevant case of isentropic stirring, it is shown that the theory is, in most respects, unchanged from the case of isentropic diffusion: effective isentropic diffusivity is controlled by the isentropic stirring and, it is argued, largely independent of the nature of the ultimate dissipation. Diabatic diffusion is not amplified by the stirring, although it can be modestly enhanced through eddy modulation of static stability. These characteristics are illustrated in numerical simulations of a stratospheric flow; in regions of strong stirring, the theoretical predictions are well supported, but agreement is less good where stirring is weaker." @default.
- W2059407966 created "2016-06-24" @default.
- W2059407966 creator A5014043544 @default.
- W2059407966 creator A5061530887 @default.
- W2059407966 date "2014-02-27" @default.
- W2059407966 modified "2023-10-18" @default.
- W2059407966 title "Effective Diffusivity in Baroclinic Flow" @default.
- W2059407966 cites W1972134132 @default.
- W2059407966 cites W2000243493 @default.
- W2059407966 cites W2008642300 @default.
- W2059407966 cites W2016411152 @default.
- W2059407966 cites W2039313483 @default.
- W2059407966 cites W2044833299 @default.
- W2059407966 cites W2053858115 @default.
- W2059407966 cites W2060185605 @default.
- W2059407966 cites W2077256449 @default.
- W2059407966 cites W2094622435 @default.
- W2059407966 cites W2109397687 @default.
- W2059407966 cites W2130994049 @default.
- W2059407966 cites W2132232251 @default.
- W2059407966 cites W2135316835 @default.
- W2059407966 cites W2139821670 @default.
- W2059407966 cites W2141520915 @default.
- W2059407966 cites W2142093964 @default.
- W2059407966 cites W2164179306 @default.
- W2059407966 cites W2175080933 @default.
- W2059407966 doi "https://doi.org/10.1175/jas-d-13-0217.1" @default.
- W2059407966 hasPublicationYear "2014" @default.
- W2059407966 type Work @default.
- W2059407966 sameAs 2059407966 @default.
- W2059407966 citedByCount "6" @default.
- W2059407966 countsByYear W20594079662014 @default.
- W2059407966 countsByYear W20594079662016 @default.
- W2059407966 countsByYear W20594079662018 @default.
- W2059407966 countsByYear W20594079662020 @default.
- W2059407966 countsByYear W20594079662021 @default.
- W2059407966 crossrefType "journal-article" @default.
- W2059407966 hasAuthorship W2059407966A5014043544 @default.
- W2059407966 hasAuthorship W2059407966A5061530887 @default.
- W2059407966 hasBestOaLocation W20594079662 @default.
- W2059407966 hasConcept C104196234 @default.
- W2059407966 hasConcept C109663097 @default.
- W2059407966 hasConcept C115852967 @default.
- W2059407966 hasConcept C121332964 @default.
- W2059407966 hasConcept C121864883 @default.
- W2059407966 hasConcept C135402231 @default.
- W2059407966 hasConcept C172959903 @default.
- W2059407966 hasConcept C196558001 @default.
- W2059407966 hasConcept C37668627 @default.
- W2059407966 hasConcept C38349280 @default.
- W2059407966 hasConcept C53631411 @default.
- W2059407966 hasConcept C57879066 @default.
- W2059407966 hasConcept C69357855 @default.
- W2059407966 hasConcept C97355855 @default.
- W2059407966 hasConceptScore W2059407966C104196234 @default.
- W2059407966 hasConceptScore W2059407966C109663097 @default.
- W2059407966 hasConceptScore W2059407966C115852967 @default.
- W2059407966 hasConceptScore W2059407966C121332964 @default.
- W2059407966 hasConceptScore W2059407966C121864883 @default.
- W2059407966 hasConceptScore W2059407966C135402231 @default.
- W2059407966 hasConceptScore W2059407966C172959903 @default.
- W2059407966 hasConceptScore W2059407966C196558001 @default.
- W2059407966 hasConceptScore W2059407966C37668627 @default.
- W2059407966 hasConceptScore W2059407966C38349280 @default.
- W2059407966 hasConceptScore W2059407966C53631411 @default.
- W2059407966 hasConceptScore W2059407966C57879066 @default.
- W2059407966 hasConceptScore W2059407966C69357855 @default.
- W2059407966 hasConceptScore W2059407966C97355855 @default.
- W2059407966 hasIssue "3" @default.
- W2059407966 hasLocation W20594079661 @default.
- W2059407966 hasLocation W20594079662 @default.
- W2059407966 hasOpenAccess W2059407966 @default.
- W2059407966 hasPrimaryLocation W20594079661 @default.
- W2059407966 hasRelatedWork W1965145670 @default.
- W2059407966 hasRelatedWork W1974074945 @default.
- W2059407966 hasRelatedWork W2001944718 @default.
- W2059407966 hasRelatedWork W2059407966 @default.
- W2059407966 hasRelatedWork W2073273630 @default.
- W2059407966 hasRelatedWork W2086403150 @default.
- W2059407966 hasRelatedWork W2123280620 @default.
- W2059407966 hasRelatedWork W2283265782 @default.
- W2059407966 hasRelatedWork W2389385763 @default.
- W2059407966 hasRelatedWork W3132224992 @default.
- W2059407966 hasVolume "71" @default.
- W2059407966 isParatext "false" @default.
- W2059407966 isRetracted "false" @default.
- W2059407966 magId "2059407966" @default.
- W2059407966 workType "article" @default.