Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays

Details Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30e..29s&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 5, pp. 29-1, CiteID 1225, DOI 10.1029/2002GL015828

Physics

3

Ionosphere: Auroral Ionosphere (2704), Ionosphere: Particle Precipitation, Magnetospheric Physics: Magnetosphere/Ionosphere Interactions, Magnetospheric Physics: Energetic Particles, Precipitating

Scientific paper

All-sky spectral imagery has been used to study the altitude distribution of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in tall auroral rays appearing at the poleward edge of the auroral oval. The OII(732-733 nm) emission layer was consistently higher than the OI(630 nm) emission layer in these structures; the peak emission altitudes were estimated to be ~380 km and ~240 km, respectively. Neither the high absolute altitude of the OII(732-733 nm) peak nor its >100 km offset from the OI(630 nm) peak are consistent with published model results, which consider electron impact on atomic oxygen as the sole source of auroral O+(2P). The present results suggest that O+(2P) may also be excited directly from ambient ionospheric O+(4S) atoms. Other contributing factors may include a significant underestimation of the rate coefficients for O+(2P) quenching, or field-aligned up-flows of ionospheric O+.

Affiliated with

Also associated with

No associations

Rating

Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays 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 Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical comparison of OII(732-733 nm), OI(630 nm), and N2(1PG) emissions in auroral rays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-997725