Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1777475 | Journal of Atmospheric and Solar-Terrestrial Physics | 2010 | 5 Pages |
Abstract
A survey of dayside aurora excitation at 557.7Â nm, which was acquired from an all-sky imager at Yellow River Station in Ny-Ã
lesund, Svalbard, shows that there are 4 intense emission maxima in the dayside oval, centered near 0630/76, 0830/76, 1400/75, and 1600/75 (unit: MLT/MLAT), respectively. Tracing the magnetospheric sources of these cores along geomagnetic field lines, the 0830- and 1400-MLT cores correspond with the prenoon and postnoon magnetospheric boundary layers (MBLs), and the 0630- and 1600-MLT cores are located at the dusk and dawn MBLs, respectively. The potential solar wind-magnetosphere dynamic processes resulting in these auroral features are discussed.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
Ze-Jun Hu, H. Yang, J. Liang, D. Han, D. Huang, H. Hu, B. Zhang, R. Liu, Z. Chen,