Lobe cell convection as a summer phenomenon

Details Lobe cell convection as a summer phenomenon Lobe cell convection as a summer phenomenon

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....9813403c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. A8, p. 13,403-13,407.

Physics

53

Convection Cells, Diurnal Variations, Earth Ionosphere, Ionospheric Conductivity, Annual Variations, Interplanetary Magnetic Fields, Mathematical Models, Polar Regions

Scientific paper

Patterns of average potential over the high-latitude ionosphere in winter show that the dusk convection cell dominates the dawn cell, consistent with the presence of a day-night conductivity gradient, as predicted by a number of models. However, in the summer hemisphere, when IMF B(y) is strongly positive, the dusk cell so dominates the dawn cell that the latter nearly disappears; and when IMF B(y) is strongly negative, the cells are most nearly equal. The difference between winter and summer can be explained by the addition in summer of a single lobe cell, that is, a cell confined to open field lines, circulating within the dusk cell of the two-cell pattern when B(y) is positive and within the dawn cell when B(y) is negative. The result is consistent with predictions of the overdraped lobe model, that lobe cells occur in only one hemisphere at a time, and that their occurrence is controlled by dipole tilt.

Affiliated with

Also associated with

No associations

Rating

Lobe cell convection as a summer phenomenon 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 Lobe cell convection as a summer phenomenon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lobe cell convection as a summer phenomenon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1492987