It was a hot topic during the cold war period to monitor nuclear tests in the atmosphere . the " comprehensive nuclear test ban treaty " required that a global network of infra - sound sensors be installed to monitor abnormal explosions in the air 全球正在推动的”全面禁止核试验条约”中，便要求在全球范围内设立次声监测网，以监察在大气中有否异常的大规模爆炸。
