Polar Mesospheric Summer Echo
Taken by Rob Stammes on May 20, 2019 @ Polarlightcenter Lofoten Norway.
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Last night,May 19-20 2019 I had the first radio reflection signals from Polar Mesospheric Clouds this season on my instruments.
VHF signals from Eastern Europe in a recognizable structure and very strong,sometimes related with visible NLC,s or Noctilucent Clouds.Still waiting for the first pictures from NLC.s on the Spaceweather gallery.
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Which type of value on vertical axis ? Thanks for information.
Posted by astrocb 2019-05-20 07:49:19
How do you distinguish between PSME and sporadic E (Es)?
Posted by W9IP 2019-05-23 06:25:29
Vertical is only the ADC voltage input after amplifying the signal,the AGC output of the receiver.

Youre right,sometimes Im not sure and then I dont post the data.
Sporadic E is almost not around or after midnight and when it is magnetically quiet it is not polar Es.
There is also a different in signals on my instruments.
In addition,Iam always happy with NLC pictures from the same moment.

Thank you both. Rob.
Posted by polarlight 2019-05-27 15:18:34
12 thumbs up
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