On 01/23/2013 07:39 AM, Bill Tippett wrote:
"Weather Events" in the Upper Atmosphere
D-region Winter Anomaly is a period of enhanced radio wave absorption
usually occurring in late winter and thought to be associated with a sudden
stratospheric warming
http://www.albany.edu/faculty/rgk/atm101/weather.htm
I see something called D-region Bite-Out in this link. That's a new one
for me, and defined as:
"D-region Bite-Out is a daytime depletion of electron density as the
result of electrons attaching to polar mesopheric cloud ice particles"
Seems like that would be good for 160 meters. Is it measurable ?
73,
Steve, N2IC
_________________
Topband Reflector
|