Adelaide Research & Scholarship
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https://hdl.handle.net/2440/41152
| Type: | Conference paper |
| Title: | The characteristics and dynamics of polar mesosphere summer echoes (PMSE) above Davis, Antarctica |
| Author: | Morris, R. Murphy, D. Vincent, R. Terkildsen, M. Holdsworth, D. Klekociuk, A. Hyde, M. Reid, I. |
| Citation: | 16th National Congress of the Australian Institute of Physics [electronic resource] : physics for the nation : congress proceedings / [Max Colla (ed.): pp.84-87 |
| Issue Date: | 2005 |
| ISBN: | 0959806482 |
| Conference Name: | Australian Institute of Physics Congress (16th : 2005 : Canberra, A.C.T.) |
| Abstract: | The first observations of Polar Mesosphere Summer Echoes (PMSE) above continental Antarctica were detected at the polar station Davis (68.6ϒS) using a 55 MHz atmospheric radar during the 2003–04 austral summer. In this paper we present the characteristics and dynamics of PMSE events observed on 27 days. Satellite temperature measurements revealed that PMSE exist for mesosphere temperatures < 150K. Mesosphere horizontal wind field radar measurements showed that PMSE occurred during conditions of westward zonal winds and equatorward meridional winds. We also consider vertical coupling processes in the PMSE layer at 82–90 km, including: from above with cosmic noise absorption and E-region ionospheric plasma instabilities; and from below with tidal, gravity and planetary waves. |
| Appears in Collections: | Aurora harvest Chemistry and Physics publications |
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