Other
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jgra..11506302t&link_type=abstract
Journal of Geophysical Research, Volume 115, Issue A6, CiteID A06302
Other
6
Atmospheric Composition And Structure: Airglow And Aurora, Ionosphere: Equatorial Ionosphere, Ionosphere: Wave Propagation (0689, 3285, 4275, 4455, 6934), Atmospheric Composition And Structure: Middle Atmosphere: Energy Deposition (3334)
Scientific paper
Simultaneous monitoring of mesospheric and thermospheric airglow emissions over low latitudes in the Pacific sector is utilized to study the signatures of mesospheric waves during equatorial spread F events as characterized by their optical signature in the thermospheric airglow layer, equatorial plasma bubbles (EPBs). Two case studies are presented, each consisting of two consecutive nights, one on which EPBs were observed and the other without EPBs. Significant differences are observed in mesospheric wave growth during EPB nights compared to the nights when no EPBs were observed. It is also found that short-period gravity waves with periods less than 3 h exhibited larger wave growth between the OH and O2 emission altitudes during the nights when EPBs were observed. The observed mesospheric wave signatures are discussed in connection with the causative mechanisms for EPBs.
Makela Jarmo
Taori Alok
Taylor Michael
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