Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter

Details Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29v..30c&link_type=abstract

Geophysical Research Letters, Volume 29, Issue 22, pp. 30-1, CiteID 2073, DOI 10.1029/2002GL016062

Physics

7

Meteorology And Atmospheric Dynamics: General Circulation, Meteorology And Atmospheric Dynamics: Waves And Tides, Meteorology And Atmospheric Dynamics: Stratosphere/Troposphere Interactions, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342), Global Change: Climate Dynamics (3309)

Scientific paper

Using NCEP-NCAR reanalysis data from 1958 to 1998, two interannual oscillations in the eddy forcing due to planetary waves (wavenumbers 1-3) are found in the Northern Hemisphere winter, called as the stratospheric interannual oscillation (SIO) and the tropospheric interannual oscillation (TIO). The temporal evolutions are different between the SIO and the TIO, suggesting different dynamic mechanisms. The planetary waves tend to be bent equatorward in the troposphere during a positive TIO phase, and in the mid- and upper stratosphere during a positive SIO phase. The result also suggests that upward propagation of planetary waves into the polar waveguide across the tropopause is closely associated with the TIO. Further regression and correlation analyses suggest that the TIO is closely linked to the Northern Annular Mode (NAM), whereas the SIO is closely associated with the El Niño/Southern Oscillation (ENSO).

Affiliated with

Also associated with

No associations

Rating

Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observed interannual oscillations of planetary wave forcing in the Northern Hemisphere winter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-741850