| 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. |
| 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. AMSglossary
GCW |