新一轮太阳黑子周期已经开始A.docx

新一轮太阳黑子周期已经开场图  2021-01-07 10:30:40|  分类： 系内星闻 |  标签： |字号大中小 订阅 从太阳与日光层观测站SOHO观测到，太阳的紫外线图像所显示的正磁极性区域为白色，负磁极性区域为黑色，与一张地图上的正负磁极性区域形成比照。这块高纬度的新活泼区域磁极性发生反转，标志着一个新的太阳活动周期就要到来。美国国家航空航天管理局供图New Sunspot Cycle Begins胡德良 译The National Oceanic and Atmospheric Administration said Friday that the first sunspot of a new 11-year cycle has appeared in the sun's northern hemisphere.   星期五，美国国家海洋及大气管理局NOAA称，在这次为期11年的新一轮太阳活动中，第一个黑子已经出现在太阳的北半球。 The frequency of sunspots rises and falls during these cycles, and the start of a new cycle indicates they are likely to begin increasing.  在太阳活动各周期中，黑子的出现次数往往时增时减，而这个新周期开场时的迹象预示着黑子出现的次数很可能开场增加了。 Sunspots, areas of intense magnetic activity on the sun, can affect Earth by disrupting electrical grids, airline and military communications, GPS signals and even cell phones, the agency said. During periods of intense sunspot activity, known as solar storms, highly charged radiation from the sun may head toward Earth.  美国国家海洋及大气管理局指出，黑子是太阳上磁活动强烈的区域，可以对地球造成影响：破坏电力网格、中断航空及军事通讯、干扰全球定位系统信号、甚至扰乱手机通讯。强烈的黑子活动被称为太阳风暴。发生太阳风暴之时，来自太阳的高能带电放射线会冲向地球。 "Our growing dependence on highly sophisticated, space-based technologies means we are far more vulnerable to space weather today than in the past,'' said NOAA Administrator Conrad C. Lautenbacher.  美国国家海洋及大气管理局的官员康拉德·C·劳顿班彻说：“我们变得越来越依赖高度兴旺的太空技术了，这意味着面对空间天气的影响，当今的我们要脆弱得多。 Last April an international panel of solar experts forecast that Solar Cycle 24 would start in March 2021, plus or minus six months. The panel was split between those predicting a strong or weak cycle.  去年4月份，一个研究太阳的国际专家小组预测，第24个太阳活动周期将于2021年3月份开场，误差为6个月。至于这是一个强烈活动周期还是微弱活动周期，当时专家小组的意见产生了分歧。译自：太空网4 January 2021第 3 页