Very strong high latitude polar mesospheric winter echoes have broken out in the past 24 hours. I wasn't active on the bands today, so I wonder if there was any 6m or higher HF enhancement?
The second plot shows the situation 24 hours later, with an intensification in echoes.
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| PMWE echoes at 53.5MHz/ MAARSY/IAP Leinbiz Institute for Atmospheric Research. |
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