Matches in SemOpenAlex for { <https://semopenalex.org/work/W2175498772> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2175498772 endingPage "2750" @default.
- W2175498772 startingPage "2728" @default.
- W2175498772 abstract "The linear normal modes of large-scale atmospheric motions are computed in a spherical quasi-geostrophic model extending from the surface up to 80 km to investigate the stability of zonal motions in the stratosphere and mesosphere. The basic states are taken from the Northern Hemisphere winter and summer solstitial conditions. The winter basic state is able to generate growing planetary waves 1 and 2, which extend into the stratosphere and the mesosphere at high latitudes. They are identified as Green modes which propagate very slowly. The structure of the Green mode compares favorably with the observed quasi-stationary planetary waves. Waves 4–6, generated in the troposphere, can also penetrate into the lower stratosphere but an trapped them and resemble Charney modes. Energetics analysis indicates that the ratio of the local energy conversion versus energy flux from below is about 1:2 for the Omen modes waves 1 and 2 in the stratosphere while the mean flow and the planetary waves in the mesosphere are all supported by wave energy flux from below. In summer, the growing normal mode solutions are significant only either in the troposphere or in the mesosphere, with little amplitude in the stratosphere. The mesosphere supports westward propagating waves 1–4, especially wavenumber 3, which may be identified as a 2-day wave observed in the summer mesosphere. In addition, a comparison is made of the stabilities of the stratospheric basic states before and after the 1976/1977 sudden warming event. Before the sudden warming, waves 1 and 2 were almost stationary. They are identified as the deep Green modes with their maximum geopotential amplitude in the upper stratosphere. After the sudden warming, the planetary waves 1, 2 and 3 were all confined to the troposphere, resembling the external Charney mode, and propagated with a much larger phase speed. Ale associated energetics in the stratosphere underwent a reversal from a typical baroclinic energy conversion (before the sudden warming) to the opposite conversion (after the sudden warming). These characteristics of transient planetary waves and the associated enegetics agree fairly well with the observations." @default.
- W2175498772 created "2016-06-24" @default.
- W2175498772 creator A5003764812 @default.
- W2175498772 creator A5042686557 @default.
- W2175498772 date "1985-12-01" @default.
- W2175498772 modified "2023-09-23" @default.
- W2175498772 title "A Linear Stability Analysis of the Stratospheric and Mesospheric Zonal Mean State in Winter and Summer" @default.
- W2175498772 doi "https://doi.org/10.1175/1520-0469(1985)042<2728:alsaot>2.0.co;2" @default.
- W2175498772 hasPublicationYear "1985" @default.
- W2175498772 type Work @default.
- W2175498772 sameAs 2175498772 @default.
- W2175498772 citedByCount "4" @default.
- W2175498772 crossrefType "journal-article" @default.
- W2175498772 hasAuthorship W2175498772A5003764812 @default.
- W2175498772 hasAuthorship W2175498772A5042686557 @default.
- W2175498772 hasBestOaLocation W21754987721 @default.
- W2175498772 hasConcept C121332964 @default.
- W2175498772 hasConcept C125405218 @default.
- W2175498772 hasConcept C127313418 @default.
- W2175498772 hasConcept C1276947 @default.
- W2175498772 hasConcept C133877212 @default.
- W2175498772 hasConcept C153294291 @default.
- W2175498772 hasConcept C163861444 @default.
- W2175498772 hasConcept C177707082 @default.
- W2175498772 hasConcept C185975314 @default.
- W2175498772 hasConcept C39432304 @default.
- W2175498772 hasConcept C44886760 @default.
- W2175498772 hasConcept C49204034 @default.
- W2175498772 hasConcept C55519028 @default.
- W2175498772 hasConcept C62520636 @default.
- W2175498772 hasConcept C65440619 @default.
- W2175498772 hasConcept C69976271 @default.
- W2175498772 hasConcept C88582754 @default.
- W2175498772 hasConcept C9075549 @default.
- W2175498772 hasConcept C91586092 @default.
- W2175498772 hasConceptScore W2175498772C121332964 @default.
- W2175498772 hasConceptScore W2175498772C125405218 @default.
- W2175498772 hasConceptScore W2175498772C127313418 @default.
- W2175498772 hasConceptScore W2175498772C1276947 @default.
- W2175498772 hasConceptScore W2175498772C133877212 @default.
- W2175498772 hasConceptScore W2175498772C153294291 @default.
- W2175498772 hasConceptScore W2175498772C163861444 @default.
- W2175498772 hasConceptScore W2175498772C177707082 @default.
- W2175498772 hasConceptScore W2175498772C185975314 @default.
- W2175498772 hasConceptScore W2175498772C39432304 @default.
- W2175498772 hasConceptScore W2175498772C44886760 @default.
- W2175498772 hasConceptScore W2175498772C49204034 @default.
- W2175498772 hasConceptScore W2175498772C55519028 @default.
- W2175498772 hasConceptScore W2175498772C62520636 @default.
- W2175498772 hasConceptScore W2175498772C65440619 @default.
- W2175498772 hasConceptScore W2175498772C69976271 @default.
- W2175498772 hasConceptScore W2175498772C88582754 @default.
- W2175498772 hasConceptScore W2175498772C9075549 @default.
- W2175498772 hasConceptScore W2175498772C91586092 @default.
- W2175498772 hasIssue "24" @default.
- W2175498772 hasLocation W21754987721 @default.
- W2175498772 hasOpenAccess W2175498772 @default.
- W2175498772 hasPrimaryLocation W21754987721 @default.
- W2175498772 hasRelatedWork W1971643479 @default.
- W2175498772 hasRelatedWork W1975255003 @default.
- W2175498772 hasRelatedWork W2009075203 @default.
- W2175498772 hasRelatedWork W2013998943 @default.
- W2175498772 hasRelatedWork W2023813189 @default.
- W2175498772 hasRelatedWork W2051835949 @default.
- W2175498772 hasRelatedWork W2052243718 @default.
- W2175498772 hasRelatedWork W2122579231 @default.
- W2175498772 hasRelatedWork W2461567931 @default.
- W2175498772 hasRelatedWork W4323657029 @default.
- W2175498772 hasVolume "42" @default.
- W2175498772 isParatext "false" @default.
- W2175498772 isRetracted "false" @default.
- W2175498772 magId "2175498772" @default.
- W2175498772 workType "article" @default.