Relationship between the Polar‐Night Jet Oscillation and the Annular Mode
- 27 April 2002
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 29 (8) , 132-1-132-4
- https://doi.org/10.1029/2001gl013933
Abstract
The relationship between the Polar‐night Jet Oscillation (PJO) and the Annular Mode (AM) is examined based on a correlation analysis of winter in both the Northern Hemisphere (NH) and Southern Hemisphere (SH). The PJO becomes a nearly zonally symmetric structure from the troposphere to the upper stratosphere when a pattern similar to the AM appears at the troposphere. If the signal of the PJO is removed, the signal of the AM exists only in the troposphere, and the persistency of the signal is largely reduced in the stratosphere. This suggests that the AM is essentially a tropospheric process that tends to strongly interact with the PJO in the active season.This publication has 16 references indexed in Scilit:
- Downward propagation of zonal mean zonal wind anomalies from the stratosphere to the troposphere: Model and reanalysisJournal of Geophysical Research: Atmospheres, 2001
- Stratospheric Harbingers of Anomalous Weather RegimesScience, 2001
- Tropospheric and stratospheric aspects of the Arctic oscillationGeophysical Research Letters, 2000
- Stratospheric sudden warmings and slowly propagating zonal‐mean zonal wind anomaliesJournal of Geophysical Research: Atmospheres, 2000
- Propagation of the Arctic Oscillation from the stratosphere to the troposphereJournal of Geophysical Research: Atmospheres, 1999
- Interannual variability in the troposphere and stratosphere of the southern hemisphere winterJournal of Geophysical Research: Atmospheres, 1998
- The NCEP/NCAR 40-Year Reanalysis ProjectBulletin of the American Meteorological Society, 1996
- On the origin and nature of the interannual variability of the winter stratospheric circulation in the northern hemisphereJournal of Geophysical Research: Atmospheres, 1995
- Observed correlations between winter‐mean tropospheric and stratospheric circulation anomaliesGeophysical Research Letters, 1994
- Stratospheric Analyses Produced by the United Kingdom Meteorological OfficeJournal of Applied Meteorology and Climatology, 1993