第24个太阳循环中的太阳总辐照度极小值和极大值属性研究

太阳为地球气候系统提供了99.96%以上的能量输入。太阳辐射输出能量的改变将不可避免地改变地球辐射收支平衡，对全球气候产生微妙影响。太阳总辐照度是地球气候模型显性或隐性的基本输入。研究太阳总辐照度的变化及其周期变化规律对于预测未来太阳变化对地球气候的影响有重要意义。本项目将以我国自主的风云三号太阳总辐照度数据为核心数据，通过开展自主数据深度校正、对国外遥感数据中仪器老化成分的再校正、多源数据的数值标度归一化、大数据量的多源遥感数据合成等研究，构建第24个太阳循环太阳总辐照度合成数据序列。在此基础上，分析第二十四个太阳循环中太阳总辐照度的极大值和极小值属性。依托本项目，以中国独有的高精度太阳总辐照度遥感数据为有力支撑点，对受仪器老化影响较大的国外遥感数据进行再校正，我们有可能重新定义近几个太阳循环中太阳总辐照度极大小和极大值属性，有可能发现新的太阳总辐照度变化趋势。

The sun provides more than 99.96% energy input for the climate system of the Earth. Variation of the radiative energy output from the Sun will change the balance of the Earth’s radiation budget, with subtle impact to the global climate. Total Solar Irradiance (TSI) is the basic input of the Earth’s climate model with the dominant form or the recessive form. It is very important to investigate the variation and cycle change of total solar irradiance, for the prediction of the future impact from Sun’s variation to the Earth’s climate. The proposed project will establish the composite of datasets of total solar irradiance in Solar Cycle 24. The datasets of total solar irradiance from Feng-Yun 3 Satellites will be used as the core datasets. Advanced correction of Chinese datasets, re-correction of the components from instrument’s aging for the foreign remote-sensing datasets, normalization of value-scale of multi TSI datasets and composition of multi TSI datasets with a large amount of data. Afterwards, the properties of TSI maxima and TSI minima will be studied. We will re-correct some foreign TSI datasets which suffered impacts from instrument’s aging, by using the Chinese TSI datasets with high precision. It should be noted here that there is nearly no aging component in the Chinese TSI datasets in specific periods. We will probably redefine the TSI maxima and TSI minima in the recent several Solar Cycles, and some new variation trends of TSI will found probably, with the support from the proposed project.