Space Weather News for Aug. 31, 2014
http://spaceweather.com
 
Aurora season is now fully underway around the Arctic circle.  With the end of
northern summer approaching, dancing green lights are beaming through the
deepening polar twilight on a regular basis. Unlike lower latitudes, the
Arctic does not require a full-fledged geomagnetic storm for aurora
sightings.  Check the latest images on the front page of http://
paceweather.com
 
Meanwhile, another polar phenomenon is on the wane: noctilucent clouds
(NLCs).  Data from NASA's AIM spacecraft suggest that the northern summer
season for NLCs ended on or about August 26th.  The "noctilucent daisy" shown
on http://spaceweather.com will probably remain blank until November, when NLC
activity shifts to the southern hemisphere.  NLCs are a summertime phenomenon
and they switch back and forth between the hemispheres accordingly.  Stay
tuned for more electric blue ... in a few months.
 
 
Regards,
 
Roger

--- D'Bridge 3.99
 * Origin: NCS BBS - Houma, LoUiSiAna (1:3828/7)