Abstract

Satellite-based measurements of the total flow of incoming solar radiation arriving at the Earth (total solar irradiance (TSI)) have been carried out since 1977. By now, a continuous series of variations of the TSI is obtained. The 11-year cycle and its amplitude in multiyear variations of solar radiation are revealed. However, two mechanisms having different physical nature are defined in regulation of the incoming solar radiation to the Earth (with the atmosphere not accounted for), and in its distribution over the Earth surface (solar climate of the Earth). One mechanism is related to the variation in solar activity. Another mechanism is defined by celestial-mechanical processes, which alter the orbit elements of the Earth (Earth–Sun distance, duration of the tropical year, etc.), the Earth rotation axis tilt, and the relevant variations in the Earth’s insolation. The performed calculations of the insolation related to the celestial-mechanical processes were used as a basis for differentiating the satellite observational data on the changes of the TSI with respect to the mechanisms of different physical nature. It was made possible to estimate the contributions of the variation in solar activity and of the celestial-mechanical processes to the total incoming solar radiation.

中文翻译：

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太阳辐射向大气上边界的变化趋势及其空间局域性

摘要

自1977年以来，就已经进行了基于卫星的到达地球的总太阳辐射流量（总太阳辐照度（TSI））测量。到目前为止，已经获得了一系列连续的TSI变化。揭示了11年周期及其在太阳辐射多年变化中的振幅。但是，在调节入射到地球的太阳辐射（不考虑大气）和在地球表面分布（地球的太阳气候）时，定义了两种具有不同物理性质的机制。一种机制与太阳活动的变化有关。天体机械过程定义了另一种机制，该过程改变了地球的轨道元素（地球-太阳的距离，热带年份的持续时间等），地球自转轴倾斜，以及地球日照的相关变化。所进行的与天体力学过程有关的日照计算被用作区分卫星观测数据的基础，这些数据是关于TSI变化的不同物理性质的机制。估计太阳活动和天体过程变化对总入射太阳辐射的贡献是可能的。