Barotropic effects on atmospheric storm tracks

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The effect of barotropic dynamics on atmospheric midlatitude storm tracks is investigated for the Northern Hemisphere winter season, using both observed data analyses and linear barotropic model experiments. It is shown that when the model flow is initialized with a realistic wave packet, barotropic processes alone can produce key features of the observed storm track structure. The author attributes this result both to the barotropic waveguide effect and to the fact that the geographical locations of barotropic growth coincide reasonably well with the baroclinic growth of the atmospheric storm track eddies. This study also shows that barotropic dynamics are more relevant for storm tracks in lower latitudes than for those in higher latitudes, consistent with the fact that the lower-latitude storm tracks are more closely associated with the subtropical jet, rather than with the polar front jet that is driven by baroclinic eddies.

Original languageEnglish (US)
Pages (from-to)1420-1435
Number of pages16
JournalJournal of the Atmospheric Sciences
Volume57
Issue number9
DOIs
StatePublished - May 1 2000

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storm track
eddy
barotropic wave
polar front
Northern Hemisphere
effect
winter
experiment

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

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title = "Barotropic effects on atmospheric storm tracks",
abstract = "The effect of barotropic dynamics on atmospheric midlatitude storm tracks is investigated for the Northern Hemisphere winter season, using both observed data analyses and linear barotropic model experiments. It is shown that when the model flow is initialized with a realistic wave packet, barotropic processes alone can produce key features of the observed storm track structure. The author attributes this result both to the barotropic waveguide effect and to the fact that the geographical locations of barotropic growth coincide reasonably well with the baroclinic growth of the atmospheric storm track eddies. This study also shows that barotropic dynamics are more relevant for storm tracks in lower latitudes than for those in higher latitudes, consistent with the fact that the lower-latitude storm tracks are more closely associated with the subtropical jet, rather than with the polar front jet that is driven by baroclinic eddies.",
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Barotropic effects on atmospheric storm tracks. / Lee, Sukyoung.

In: Journal of the Atmospheric Sciences, Vol. 57, No. 9, 01.05.2000, p. 1420-1435.

Research output: Contribution to journalArticle

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