Polar mesosphere summer echo observations at HF frequencies using the HAARP Gakona Ionospheric Observatory
Polar mesosphere summer echo observations at HF frequencies using the HAARP Gakona Ionospheric Observatory
复制标题
使用 HAARP Gakona 电离层天文台进行极地中间层夏季高频回波观测
DOI：
10.1029/2001gl013411
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发表时间：
2002
影响因子：
5.2
通讯作者：
E. Kennedy
中科院分区：
文献类型：
--
作者：
M. Kelley;M. Huaman;Charlie Y. Chen;C. Ramos;F. Djuth;E. Kennedy
我们提出了初步的极地中层夏季回波（PMSE）观测阿拉斯加在HF波段。回声检测到附近85公里超过50%的观测时间，即使它是晚在PMSE季节。信噪比有时超过25 dB。我们还提出了不同的发射功率和天线指向方向上的PMSE强度和发生的影响。有一些证据表明，使用4.5 MHz的电子加热发生，即使在使用的低占空比。
We present initial polar mesosphere summer echo (PMSE) observations over Alaska in the HF band. Echoes were detected near 85 km over 50% of the observation time even though it was late in the PMSE season. The signal‐to‐noise ratio sometimes exceeded 25 dB. We also present the effects of different transmitted powers and antenna pointing directions on PMSE strength and occurrence. There is some evidence that using 4.5 MHz electron heating occurred, even at the low duty cycle used.