Alternate Definitions for Polar mesospheric summer echoes

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Term: Polar mesospheric summer echoes
Definition: Anomalously strong radar echoes received from the mesopause region during summer at high latitudes. (Abbreviated PMSE.) They are loosely associated with the occurrence of noctilucent clouds and polar mesospheric clouds.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
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