Thunderstorms are a common atmospheric phenomenon that cause abundant acoustic disturbances, which can interact with the ground surface, creating a link between atmospheric and solid Earth processes. This article reports seismological observations of four thunderstorms through the spring and summer of 2019, as recorded by the distributed acoustic sensing fiber‐optic array (4.9 km) on the Penn State campus in State College, Pennsylvania. With a dense sensor array in the local region, we are able to construct the seismic full waveform response of the thunderstorm events (hereafter referred to as thunderquakes) and track the wave propagation across the array. We use a time‐domain grid search to obtain the back azimuth and slowness of the waves, and a modified Geiger’s method to pinpoint source locations of the thunderquakes. Correlated with the time of the recorded signal, this data allows reconstruction of thunderstorm movement as well as offering measurements of the seismic velocity.

中文翻译：

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使用地下光纤阵列对四次雷暴的地震观测

雷暴是一种常见的大气现象，会引起大量声扰动，这些扰动可以与地表相互作用，在大气和固体地球过程之间建立联系。本文报告了 2019 年春季和夏季对四场雷暴的地震学观测，这些观测由宾夕法尼亚州立大学宾夕法尼亚州立大学的分布式声学传感光纤阵列（4.9 公里）记录。通过局部区域的密集传感器阵列，我们能够构建雷暴事件（以下简称雷震）的地震全波形响应并跟踪波在阵列中的传播。我们使用时域网格搜索来获得波的后方位角和慢度，并使用改进的盖革方法来确定雷震的震源位置。