太陽總輻照的演化特征分析
發(fā)布時間：2019-02-11 13:36
【摘要】：太陽總輻照(Total Solar Irradiance, TSI)是指在平均日地距離處，單位時間到達地球大氣層頂部單位面積的所有波段的太陽電磁輻射能量總和。TSI影響著進入地球系統(tǒng)的總的能量，而這個總能量幾乎驅(qū)動著地球系統(tǒng)內(nèi)部所有已知的自然規(guī)律和生物圈的循環(huán)，是地球最重要的能量來源。在1978年10月“Hickey-Frieden空腔輻射器”(Hickey-Frieden cavity radiometer, HF)觀測TSI之前，由于地面觀測設(shè)備的低準(zhǔn)確性，人們認(rèn)為TSI是一個不變的常數(shù)，因此被稱為“太陽常數(shù)”。自從HF被發(fā)射升空以后, TSI就得到了幾個輻射計相繼進行的連續(xù)觀測(一般有2～4個輻射計在地球大氣層外同時進行)。由于這些空間輻射計具有較高的準(zhǔn)確性,人們認(rèn)識到TSI從幾分鐘到數(shù)十年的時間尺度上都是變化的。TSI產(chǎn)生地球的輻射環(huán)境并且影響地球溫度和大氣,即使較小的持續(xù)的TSI的變化都會對地球氣候產(chǎn)生深遠的影響。因此,弄清楚TSI的變化怎樣影響地球氣候是非常重要的，，并且現(xiàn)在有了許多這方面的調(diào)查研究，尤其是TSI對地球長周期氣候變化的影響以及目前全球氣候變暖方面都具有非常重要的意義。同時，TSI的研究對我們認(rèn)識太陽表面及內(nèi)部的物理過程、地球大氣、日地關(guān)系等有著非常重要的意義。TSI的空間觀測僅僅從1978年開始,由于只有短短的34年的直接觀測數(shù)據(jù),重構(gòu)較長時間尺度的TSI是非常重要和必須的,并且現(xiàn)在TSI重構(gòu)方面取得了長足的進步，但同時也存在一定的不足，所以需要進一步弄清楚TSI變化的物理機制。 首先介紹了太陽輻照目前的研究進展情況以及一些重大成果，包括太陽輻照的觀測、重構(gòu)和演化特征分析。然后我們利用連續(xù)小波分析、小波交叉和小波調(diào)諧等方法分析TSI與太陽黑子面積和Mg II特征指數(shù)的關(guān)系，得到了TSI在23和24太陽活動周的準(zhǔn)旋轉(zhuǎn)周期是不同的，并且分析出TSI與這些代理物之間的相互關(guān)系。 我們利用美國宇航局太陽輻射和氣候試驗衛(wèi)星(Solar RadiationClimateExperiment, SORCE)上的太陽總輻照檢測儀(Total Irradiance Monitor, TIM)所觀測的TSI，以及太陽黑子面積和Mg II線心線翼比的研究表明，太陽總輻照在23和24太陽活動周的顯著周期分別為35和26d,進而推斷太陽的準(zhǔn)旋轉(zhuǎn)周期在23和24太陽活動周也分別為35和26d.太陽總輻照在24周極小期的值可能與蒙德極小期的值相近。在一個太陽旋轉(zhuǎn)周到幾個月的時間尺度上,太陽黑子是引起太陽總輻照變化的主要原因,但不是唯一的原因。在幾天到一個太陽旋轉(zhuǎn)周的時間尺度上,太陽總輻照的變化與Mg II特征指數(shù)是不相關(guān)的。利用ACRIM合成的TSI研究發(fā)現(xiàn)，在太陽活動周時間尺度上，TSI的變化與太陽黑子和Mg II特征指數(shù)是不相關(guān)的。
[Abstract]:Total solar radiation (Total Solar Irradiance, TSI) is the sum of solar electromagnetic radiation energy per unit time reaching the top of the Earth's atmosphere per unit area at an average solar-terrestrial distance. TSI affects the total energy entering the Earth's system. This total energy, which drives almost all known natural laws and biosphere cycles within the Earth system, is the most important source of energy for the Earth. Before "Hickey-Frieden cavity radiator" (Hickey-Frieden cavity radiometer, HF) observed TSI in October 1978, because of the low accuracy of ground observation equipment, TSI was regarded as an invariable constant, so it was called "solar constant". Since the launch of HF, TSI has obtained successive observations of several radiometers (usually two to four radiometers simultaneously carried out outside the Earth's atmosphere). Because of the accuracy of these space radiometers, it is recognized that TSI varies over time scales from minutes to decades. TSI produces the Earth's radiative environment and affects the Earth's temperature and atmosphere. Even a small and sustained change in TSI will have a profound impact on Earth's climate. So, it's important to know how TSI changes affect the Earth's climate, and there's a lot of research in this area. In particular, the impact of TSI on the Earth's long-period climate change and the current global warming are of great significance. At the same time, the study of TSI is of great significance for us to understand the physical processes of the sun's surface and interior, the earth's atmosphere, the relationship between the sun and earth, etc. TSI's space observations only began in 1978, because there are only 34 years of direct observation data. It is very important and necessary to reconstruct TSI on a long time scale, and now the TSI refactoring has made great progress, but at the same time there are some shortcomings, so we need to further understand the physical mechanism of TSI change. This paper first introduces the research progress of solar irradiation and some important achievements, including observation, reconstruction and evolution analysis of solar radiation. Then we use the methods of continuous wavelet analysis, wavelet crossover and wavelet tuning to analyze the relationship between TSI and sunspot area and Mg II characteristic index. It is concluded that the quasi-rotation periods of TSI in the 23 and 24 solar cycles are different. The relationship between TSI and these agents is analyzed. We use the total solar radiation detector (Total Irradiance Monitor, TIM) on NASA's Solar radiation and Climate Test Satellite (Solar RadiationClimateExperiment, SORCE) to observe the TSI, as well as the sunspot area and the Mg II line central wing ratio. The significant periods of total solar irradiation at 23 and 24 solar cycles are 35 and 26 days, respectively, and the quasi-rotation cycles of the sun are also 35 and 26 days in 23 and 24 solar cycles, respectively. The value of total solar radiation in the 24 cycle minimum period may be similar to that of the Mond minimum period. Sunspots are the main cause, but not the only, cause of total solar radiation on a time scale of several months' rotation. On the time scale from a few days to the rotation of the sun, the variation of total solar irradiation is not related to the characteristic index of Mg II. Using the TSI synthesized by ACRIM, it is found that the variation of TSI is not related to the sunspot and Mg II characteristic index on the time scale of solar cycle.
【學(xué)位授予單位】：中國科學(xué)院研究生院（云南天文臺）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P422.1
本文編號：2419777
[Abstract]:Total solar radiation (Total Solar Irradiance, TSI) is the sum of solar electromagnetic radiation energy per unit time reaching the top of the Earth's atmosphere per unit area at an average solar-terrestrial distance. TSI affects the total energy entering the Earth's system. This total energy, which drives almost all known natural laws and biosphere cycles within the Earth system, is the most important source of energy for the Earth. Before "Hickey-Frieden cavity radiator" (Hickey-Frieden cavity radiometer, HF) observed TSI in October 1978, because of the low accuracy of ground observation equipment, TSI was regarded as an invariable constant, so it was called "solar constant". Since the launch of HF, TSI has obtained successive observations of several radiometers (usually two to four radiometers simultaneously carried out outside the Earth's atmosphere). Because of the accuracy of these space radiometers, it is recognized that TSI varies over time scales from minutes to decades. TSI produces the Earth's radiative environment and affects the Earth's temperature and atmosphere. Even a small and sustained change in TSI will have a profound impact on Earth's climate. So, it's important to know how TSI changes affect the Earth's climate, and there's a lot of research in this area. In particular, the impact of TSI on the Earth's long-period climate change and the current global warming are of great significance. At the same time, the study of TSI is of great significance for us to understand the physical processes of the sun's surface and interior, the earth's atmosphere, the relationship between the sun and earth, etc. TSI's space observations only began in 1978, because there are only 34 years of direct observation data. It is very important and necessary to reconstruct TSI on a long time scale, and now the TSI refactoring has made great progress, but at the same time there are some shortcomings, so we need to further understand the physical mechanism of TSI change. This paper first introduces the research progress of solar irradiation and some important achievements, including observation, reconstruction and evolution analysis of solar radiation. Then we use the methods of continuous wavelet analysis, wavelet crossover and wavelet tuning to analyze the relationship between TSI and sunspot area and Mg II characteristic index. It is concluded that the quasi-rotation periods of TSI in the 23 and 24 solar cycles are different. The relationship between TSI and these agents is analyzed. We use the total solar radiation detector (Total Irradiance Monitor, TIM) on NASA's Solar radiation and Climate Test Satellite (Solar RadiationClimateExperiment, SORCE) to observe the TSI, as well as the sunspot area and the Mg II line central wing ratio. The significant periods of total solar irradiation at 23 and 24 solar cycles are 35 and 26 days, respectively, and the quasi-rotation cycles of the sun are also 35 and 26 days in 23 and 24 solar cycles, respectively. The value of total solar radiation in the 24 cycle minimum period may be similar to that of the Mond minimum period. Sunspots are the main cause, but not the only, cause of total solar radiation on a time scale of several months' rotation. On the time scale from a few days to the rotation of the sun, the variation of total solar irradiation is not related to the characteristic index of Mg II. Using the TSI synthesized by ACRIM, it is found that the variation of TSI is not related to the sunspot and Mg II characteristic index on the time scale of solar cycle.
【學(xué)位授予單位】：中國科學(xué)院研究生院（云南天文臺）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P422.1
【參考文獻】
相關(guān)期刊論文 前1條
1 ;Recent progress of solar physics research in China[J];Research in Astronomy and Astrophysics;2011年12期
本文編號：2419777
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