On the global distribution of three-dimensional Eliassen-Palm fluxes by stationary waves

Details On the global distribution of three-dimensional Eliassen-Palm fluxes by stationary waves On the global distribution of three-dimensional Eliassen-Palm fluxes by stationary waves

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985rere.nasa..100w&link_type=abstract

In its Res. Rev., 1983 p 100-102 (SEE N85-29433 18-47)

Statistics

Air Water Interactions, Atmospheric Circulation, Flux (Rate), Northern Hemisphere, Planetary Waves, Wave Propagation, Geopotential, Meridional Flow, Standing Waves, Statistical Analysis, Vorticity

Scientific paper

The global distribution of three dimensional EP fluxes is investigated by using statistics for Dec. 1980 to Feb. 1981 and June to August 1981 calculated from operational analyses. Results at 1000 and 150 mb are given. During the Northern Hemisphere (NH) winter strong upward fluxes can be seen at 1000 mb in the lee of the Himalayas and Rockies, windward of the Canadian Rockies in the east Pacific, to the north of the Atlantic stormtrack and over the west Pacific in a region of strong land sea thermal contrast. Upward fluxes also appear near the west coasts of the Southern Hemisphere (SH) subtropical continents regions of strong land sea thermal contrast. At 150 mb (Fig. 1b) the strongest upward flux now occurs south of Alaska. The horizontal fluxes imply poleward propagation from the convection over Indonesia to 20 N, a region where the assumptions underlying EP fluxes are not well met. Equatorward propagation dominates the NH midlatitude except over the Pacific. The fluxes given offer hints of the sources of stationary waves, but also show several puzzling features and a rather cavalier disregard of regions of easterly wind. The physical meaning and interpretation of three dimensional EP fluxes is not yet clear.

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