强地磁暴期间,罕见的北极光现身洛杉矶

【美洲华联社11月12日洛杉矶讯】受强地磁暴的影响,北极光于周二晚间罕见地造访了南加州,将天使国家森林公园上空染成了令人眼花缭乱的粉色和紫色。

虽然北极光通常只出现在北极地区,但周二的这场极光秀在美国大陆的许多地方都能看到。这是因为一股强烈的太阳能量与地球磁场碰撞,将带电粒子高速喷射到大气层中。 这场奇观是由近年来最强烈的地磁暴之一造成的,根据美国国家海洋和大气管理局(NOAA)的五级地磁暴等级,它被评为G4级。

照片拍摄于周三,当时太阳正处于G4级(即强地磁暴)之中。(NOAA)

在洛杉矶县,由于城市光污染严重,大多数居民可能并未意识到附近正在发生这种现象。 但在该地区较为黑暗的地带——例如天使国家森林、约书亚树国家公园以及部分高沙漠地区,观星者和摄影师更有可能看到夜空中绚丽多彩的极光。

周二晚间,NOAA空间天气预报中心宣布,地磁暴已达到“强地磁暴”级别。虽然这些风暴能带来极光的壮丽景象,但也会干扰GPS和电力系统。

“我们一直在与一些州级监测中心、联邦紧急事务管理局(FEMA),甚至白宫最高层政府官员沟通,告知他们这类活动,”该中心空间天气预报员肖恩·达尔在X频道的一段视频中说道。“因为这些活动可能会影响我们国家的电网也就是电力系统,—甚至会影响卫星运行和通信。”

周二晚间,在堪萨斯州瓦利福尔斯附近的圣约瑟夫木匠圣殿后方,北极光照亮了夜空。(查理·里德尔/美联社)

北加州以及南至佛罗里达州也能看到北极光,科罗拉多州和华盛顿州拍摄到的景象尤其壮观。

达尔表示,预计另一股被称为日冕物质抛射的太阳物质将于周三中午抵达美国。然而,届时白昼光线可能会遮蔽北极光的观测。

Geomagnetic storms can cause disruptions to critical communication infrastructure, and NOAA had said they could make the northern lights visible in even the southern U.S. starting on Tuesday night. More northern lights could be seen again on Wednesday night in some areas. 

美国各地的北极光:

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