Preliminary study on the relation between polar mesosphere summer echoes and polar mesosphere summer echoes-sporadic E layer

Polar mesosphere summer echoes (PMSE) are very strong radar echoes near the polar mesopause in local summer. By analyzing the ionograms detected by ionosonde at Arctic and Antarctica, we study PMSE at Arctic and Antarctica by analyzing the Polar mesosphere summer echoes-sporadic E (PMSE-Es). In order to compare the seasonal variation of the Arctic PMSE and Antarctica PMSE-Es occurrence rate from 1999 to 2003, the new statically method with the data at Antarctica is used to obtain the PMSE-Es seasonal variation. The agreement of the occurrence of PMSE-Es and that of PMSE is obtained. Especially in 2002, both Arctic PMSE and Antarctica PMSE-Es occurrence rates are lower. The results show that PMSE-Es should have some inherent relations with PMSE, the ionosonde in Arctic and Antarctica may be used to detect PMSE conveniently and monitor the environmental problems of global warming.