论文标题
在第一个Covid-19锁定期间，西欧记录了高太阳辐照度，这在很大程度上是由于不寻常的天气
Record high solar irradiance in Western Europe during first COVID-19 lockdown largely due to unusual weather
论文作者
论文摘要
2020年春季打破了整个西欧的阳光记录。荷兰记录了自1928年以来最高的地面辐照度，超过了2011年的先前极端，降低了13％，辐射分数的弥散性分数得出了创纪录的低百分比（38％）。共同的辐照度极端和因199衡量标准而引起的人为污染的降低引发了这样的假设，即清洁剂的空气比常规的空气有助于记录。基于对辐射转移模型的基于地面和卫星的观察和实验的分析，我们估计，相对于2010- 2019年平均值，由于气中平均值低，因此，由于气中平均值低1.3％（2.3 w m $^{ - 2} $），由于光学含量低，因此由于低频率和17.6％（30.7 w m $^m $^m $^2} $），因此估计估计的平均值相对于2010- 2019年的平均值。 全面的。我们的分析表明，与干燥，尤其是无云的天气相比，由于COVID-19的措施而导致的气溶胶和围栏减少的重要性要小得多。
Spring 2020 broke sunshine duration records across western Europe. The Netherlands recorded the highest surface irradiance since 1928, exceeding the previous extreme of 2011 by 13 %, and the diffuse fraction of the irradiance measured a record low percentage (38 %). The coinciding irradiance extreme and a reduction in anthropogenic pollution due to COVID-19 measures triggered the hypothesis that cleaner-than-usual air contributed to the record. Based on analyses of ground-based and satellite observations and experiments with a radiative transfer model, we estimate a 1.3 % (2.3 W m$^{-2}$) increase in surface irradiance with respect to the 2010-2019 mean due to a low median aerosol optical depth, and a 17.6 % (30.7 W m$^{-2}$) increase due to several exceptionally dry days and a very low cloud fraction overall. Our analyses show that the reduced aerosols and contrails due to the COVID-19 measures are far less important in the irradiance record than the dry and particularly cloud-free weather.
