Abstract
PMSE long term observations using SuperDARN SANAE HF radar measurements
Highlights
It has been known that from November to February in the southern hemisphere, lower temperatures (< 130 K, Lübken et al 2004) are usually found at polar latitudes mesopause
We examined SuperDARN-Polar Mesosphere Summer Echoes (PMSE) from SuperDARN SANAE IV high frequency (HF) radar in relation to geomagnetic activity
No significant year-to-year variation is found in the diurnal SuperDARN-PMSE occurrence rate
Summary
It has been known that from November to February in the southern hemisphere, lower temperatures (< 130 K, Lübken et al 2004) are usually found at polar latitudes mesopause (about 90 - 100 km altitudes). Using data from Syowa East HF radar in the Antarctic (during 1999/2000 and 2000/2001 summers) and Iceland HF radar in the Arctic (1999 and 2000 summers), Hosokawa et al (2005) observed a predominant diurnal PMSE variation, similar to Ogunjobi et al (2015) observations, and a weaker PMSE interhemispheric asymmetry occurrence than those earlier reported results. Even so, they noticed possible contamination from ionospheric Eregion echoes. The SuperDARN radar aspect sensitivity along auroral locations has been discussed in the
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