First polar mesosphere summer echoes observed at Davis, Antarctica (68.6°S)
First polar mesosphere summer echoes observed at Davis, Antarctica (68.6°S)
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在南极洲戴维斯（68.6°S）观测到的第一个极地中间层夏季回波
DOI：
10.1029/2004gl020352
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发表时间：
2004
影响因子：
5.2
通讯作者：
R. Vincent
中科院分区：
文献类型：
--
作者：
R. Morris;D. Murphy;I. Reid;D. Holdsworth;R. Vincent
我们报告了南极洲戴维斯高纬度南半球（SH）站（68.6°S，78.0°E地理; 74.6°S磁）上方极地中间层夏季回波（PMSE）的首次观测结果。观测是使用55兆赫的大气雷达获得的，该雷达的第一阶段是在2002-2003年的南半球夏末投入使用的。该雷达于2003年10月开始进行中间层观测，发射功率约为20千瓦。2003年11月19日至12月3日，以及在雷达工作中断后的2004年1月27日至2月21日，记录到了PMSE。我们提出了最初的季节和昼夜发生形态从180小时的戴维斯PMSE观测。我们的初步研究结果表明，SH PMSE显示出类似的后向散射回波特性和发生特性的报告为北方半球（NH）。
We report the first observations of polar mesosphere summer echoes (PMSE) above the high‐latitude Southern Hemisphere (SH) station Davis, Antarctica (68.6°S, 78.0°E geographic; 74.6°S magnetic). Observations were obtained using a 55 MHz atmospheric radar, the first stage of which was commissioned late in the austral summer of 2002–2003. The radar commenced mesosphere observations with approximately 20 kW of transmitted power in October 2003. PMSE were recorded from 19 November to 3 December 2003 and, after a break in radar operation, from 27 January to 21 February 2004. We present the initial seasonal and diurnal occurrence morphology from 180 hours of Davis PMSE observations. Our initial findings reveal that SH PMSE show similar backscatter echo characteristics and occurrence properties to those reported for the Northern Hemisphere (NH).