Physics
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ge%26ae..50...34r&link_type=abstract
Geomagnetism and Aeronomy, Volume 50, Issue 1, pp.34-40
Physics
Scientific paper
The results of the ground-based optical observations of sunlit auroras, performed at Lovozero and Apatity observatories on April 10 (event 1) and April 27, 2007(event 2), are presented. The observations were performed in the (OI) 557.7 nm emission, using a new equipment based on a Fabry-Pérot interferometer connected to a PhotonMAX CCD camera. During event 1, the observations were performed in the Harang discontinuity region at a low magnetic disturbance. It has been indicated that an auroral arc was located in the polar part of the eastward electrojet, and the arc position coincides with the equatorward boundary of structured precipitation (b2e). During event 2, auroras were observed within the average statistical boundaries of the auroral oval and the region of structured precipitation under the conditions of rather high geomagnetic activity. However, during the period of low geomagnetic activity, discrete auroras were registered at a geomagnetic latitude of ~64° on that day, which is 3°—4° equatorward of the structured precipitation region. Such a low latitudinal position of auroras can be explained by the effect of a high solar wind velocity, which was ~580 km/s during the period of observations.
Chernouss S. A.
Roldugin A. V.
Roldugin V. C.
Vorobjev Vyacheslav G.
No associations
LandOfFree
Ground-based observations of auroras under the sunlit conditions 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 Ground-based observations of auroras under the sunlit conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-based observations of auroras under the sunlit conditions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1090993