论文标题
2022年汤加火山喷发相关的扰动播种的非季节性超级电离等离子气泡和闪烁
Unseasonal super ionospheric plasma bubble and scintillations seeded by the 2022 Tonga Volcano Eruption related perturbations
论文作者
论文摘要
2022年1月15日UT的04:14:45 UT的Hunga-Tonga火山爆发产生了各种波浪，在全球范围内传播，扰乱了背景大气和电离层。随着扰动波的到来，几个赤道等离子体气泡（EPB）是在烟盘后小时连续产生的，在东/东南亚地区，其扩展最大。这些EPB在中低纬度上引起强烈的L波段振幅闪烁，信号褪色深度高达〜16 dB。考虑到本季节在东亚/东南部部门以及显着调制的背景电离层发生的EPB非常罕见，我们认为火山喷发发射的扰动波触发了令人难以置信的超级EPB的产生。与2022 Tonga火山喷发相关的电离层扰动在日落附近的东/东南亚经度扇区巧合传播，调节了赤道F区域底边等离子体密度，并作为播种来源，是产生不可避免的超级气泡的播种来源。我们的结果表明，火山喷发可能间接影响该地区超过一万公里的卫星通信联系。
The Hunga-Tonga volcano eruption at 04:14:45 UT on 15 January 2022 produced various waves propagating globally, disturbing the background atmosphere and ionosphere. Coinciding with the arrival of perturbation waves, several equatorial plasma bubbles (EPBs) were consecutively generated at post-sunset hours over the East/Southeast Asian region, with the largest extension to middle latitudes. These EPBs caused intense L-band amplitude scintillations at middle-to-low latitudes, with signal fading depths up to ~16 dB. Considering the very rare occurrence of EPBs during this season in East/Southeast Asian sector and the significantly modulated background ionosphere, we believe that the perturbation waves launched by the volcano eruption triggered the generation of unseasonal super EPBs. The ionospheric perturbations linked with the 2022 Tonga volcano eruption propagated coincidently through the East/Southeast Asia longitude sector near sunset, modulated the equatorial F region bottomside plasma density and acted as the seeding source for the generation of unseasonal super bubbles. Our results implicate that volcano eruption could indirectly affect the satellite communication links in the region more than ten thousand kilometers away.
