solar diurnal variation

After analyzing the 11-yr, 27 days and diurnal variation of upper atmosphere caused by solar activity, a calculation method for MET model atmosphere density is presented in which solar activity is taken into account.

该文分析了高层大气与太阳活动有关的11周年变化、27天变化以及周日变化，讨论了考虑太阳活动的MET模式大气密度计算途径，并且介绍了卫星大气阻力加速度模型。

This paper deals with the study of the spatial distribution of the amplitude of diurnal variation of geomagnetic vertical component in China, based on the data recorded at some Chinese geomagnetic stations, using the method of analysis of solar daily variation of geomagnetic field in local regions.

本文利用我国部分台站地磁垂直分量日变幅的资料，采用局部地区日变场的分析方法，研究了地磁垂直分量日变幅在中国地区的空间分布特征。

The impact of the diurnal variation of solar radiation on the climate modeling

太阳辐射日变化对气候模拟的影响