Meteorological impacts of the total solar eclipse of 21 August 2017
Meteorological impacts of the total solar eclipse of 21 August 2017
复制标题
2017年8月21日日全食的气象影响
作者：
S. Burt
日食为研究太阳辐射减少对气象条件的影响提供了很多机会，特别是在日食发生前就准确预测日食的情况和范围，以便提前制定观测计划。2017年8月21日的日全食从西北到东南横贯美国（图1），每个州都可以看到日偏食（至少）。据新闻报道，日全食的路径上有超过1000万人，这可能是人类历史上日全食的最大观众。一年中的时间和一天中的时间既有利于沿着大部分日食路径的良好观测条件，也有利于探测日食对地面气象变量的影响。
A solar eclipse presents many opportunities for examining the impact of the reduction in solar radiation upon meteorological conditions, particularly so as accurate predictions of the circumstances and extent of the eclipse well before the event enable bespoke observing programmes to be set out in advance. The total solar eclipse of 21 August 2017 traversed the United States from north-west to south-east (Figure 1) and a partial eclipse (at least) was visible in every state. According to news reports, the path of totality was lined with more than 10 million people, making this probably the largest audience for any total solar eclipse in human history. The time of year and time of day was favourable for both good viewing conditions along much of the eclipse path, and for the detection of eclipse-related impacts on surface meteorological variables.