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第23太陽活動周黑子群產(chǎn)生的爆發(fā)性事件的統(tǒng)計研究

發(fā)布時間:2018-08-05 15:03
【摘要】:相對第22太陽活動周,第23太陽活動周太陽活動和空間天氣的觀測,無論是觀測內(nèi)容,還是觀測精度以及觀測的連續(xù)性等方面都有全面的提升,這為我們系統(tǒng)地統(tǒng)計分析第23周的太陽活動及相關(guān)的現(xiàn)象提供了很好的條件。依據(jù)NOAA提供的1996-2008年期間每一個活動區(qū)的數(shù)據(jù),本文統(tǒng)計分析了1996-2008年期間活動區(qū)的面積。在統(tǒng)計分析不同面積的活動區(qū)的數(shù)量,出現(xiàn)的時間,經(jīng)度和緯度時,采用的是一個活動區(qū)在可見日面出現(xiàn)期間的最大面積。經(jīng)過統(tǒng)計分析,我們得到以下結(jié)論:1.活動區(qū)面積較小的占絕大多數(shù),面積在1000μh以上的僅占活動區(qū)總數(shù)的約1%。2.第23周的一個顯著特征是太陽活動水平上升非常快,并且在下降段的很長時間內(nèi)太陽活動依然非常強(qiáng)。3.研究顯示活動區(qū)面積不是決定活動區(qū)是否為超級活動區(qū)的一個關(guān)鍵參量。4.面積超過1000μh的活動區(qū)的卡林頓經(jīng)度分布具有漂移特征。第22周的X級耀斑,美國大氣海洋管理局(NOAA)并不提供每一個軟X射線耀斑在1-8A波段的高時間分辨率的流量值,也不提供耀斑在在1-8A波段流量的積分值。但是,在第23周NOAA提供了每一個耀斑在1-8A波段流量的積分值,我們用FSXR表示一個耀斑在1-8A波段流量的積分值,依據(jù)每一個耀斑的FSXR值和對應(yīng)的活動區(qū)信息,我們可以得到一個活動區(qū)產(chǎn)生的所有耀斑在1-8A波段流量的積分值的總和(用ergs.cm-2表示)。通過對1996-2008年的活動區(qū)耀斑的流量積分的統(tǒng)計分析,我們得到統(tǒng)計分析的結(jié)果如下:1.隨著FAR的增大,相應(yīng)的活動區(qū)數(shù)量急劇下降,活動區(qū)的數(shù)量隨FAR變化的關(guān)系式為:N(FAR)=2026e-22.23FAR。2.一個活動區(qū)產(chǎn)生的所有耀斑的軟X射線流量積分值的和(FAR)與活動區(qū)的最大面積具有很好的相關(guān)性,而一個活動區(qū)產(chǎn)生的一次耀斑的軟X射線的流量值(FSXR)與耀斑爆發(fā)時的活動區(qū)面積沒有相關(guān)性。耀斑爆發(fā)時,絕大多數(shù)能量是在可見光波段,軟X射線波段的光子占耀斑光子輻射總能量很少的一部分,盡管如此,耀斑在1-8A波段流量的積分值大的耀斑,其耀斑的總能量也大,因此,我們采用南北半球活動區(qū)產(chǎn)生的耀斑在軟X射線波段流量的積分值分析了1997-2008年期間太陽南北半球耀斑釋放能量的不對稱性,分析得到的結(jié)果如下:在1997-2000年期間,北半球耀斑爆發(fā)過程釋放的能量比南半球多,而在1997-2008年期間,南半球耀斑釋放的能量超過北半球。超級活動區(qū)與耀斑的關(guān)系有非常多的研究工作,但是,超級活動區(qū)與太陽質(zhì)子事件和磁暴關(guān)系的研究工作非常少。本文從每一個活動區(qū)耀斑釋放能量的角度對12個超級活動區(qū)進(jìn)行了排序,然后簡要分析了第23周超級活動區(qū)的太陽質(zhì)子事件效應(yīng)和地磁暴效應(yīng),得到以下結(jié)果:1.依據(jù)每一個超級活動區(qū)產(chǎn)生的所有耀斑在1-8A波段流量積分值的總和對第23太陽活動周的12個超級活動區(qū)的強(qiáng)弱進(jìn)行排序,12個超級活動區(qū)從強(qiáng)到弱的順序依次為:10486、10808、10720、9415、9393、10930、9077、10484、10488、10069、8307、8100。2.超級活動區(qū)不僅會產(chǎn)生很多強(qiáng)烈的耀斑事件,而且還會產(chǎn)生很多GLE事件和一定數(shù)量的特大磁暴事件.
[Abstract]:Compared with the twenty-second solar activity weeks, the observation of solar activity and space weather in the twenty-third solar activity week, whether it is the content of observation, the accuracy of observation and the continuity of observation, provides a good condition for our systematic statistical analysis of the solar activity and related phenomena for twenty-third weeks. According to NOAA, 19 The area of the active area for the period of 1996-2008 years was statistically analyzed in each area of the 96-2008 year period. In the statistical analysis of the number of active areas in different areas, the occurrence time, the longitude and latitude, the largest area of the active area was used during the visible day. After statistical analysis, we got the following conclusions 1. the vast majority of the area of the active area is small, and the area in the area of more than 1000 mu h accounts for about 1%.2. twenty-third weeks in the total number of active areas. A significant feature of the solar activity is that the solar activity is rising very quickly, and the solar activity is still very strong in the decline segment for a long time. The active area of the area is not determined as to whether the area of the active area is super. The Carrington longitude distribution of a active area with a key parameter of.4. area over 1000 mu h has a drift characteristic. The X flare for twenty-second weeks, the American atmospheric Oceanographic Administration (NOAA) does not provide the high time resolution of each soft X ray flare at the high time resolution of the 1-8A band, nor does it provide the integral value of the flare in the 1-8A band. However, at the twenty-third week NOAA, the integral value of each flare in the 1-8A band flow is provided. We use FSXR to express the integral value of a flare in the 1-8A band. According to the FSXR value of each flare and the corresponding active area information, we can get the sum of the integral values of the flare of a flare in the 1-8A band (E). According to the statistical analysis of the flow integral of the flare of the 1996-2008 year active area, we get the results of the statistical analysis as follows: 1. with the increase of FAR, the number of the corresponding active area drops sharply, and the relation of the number of active area with FAR is all the flares produced by N (FAR) = 2026e-22.23FAR.2.. The sum of the soft X ray flow integral value and (FAR) have a good correlation with the maximum area of the active area, while the flow value of the soft X ray of a flare produced by an active area (FSXR) is not related to the area of the active area when the flare erupts. When the flare erupts, the vast majority of the energy is in the visible light band, and the photon in the soft X ray band is occupied. The total energy of the spot photon radiation is very small, although the flare has a large solar flare in the 1-8A band flow, and the total energy of the flare is large. Therefore, we use the integral of the flare produced by the northern hemisphere active region in the soft X - ray band flow to analyze the misalignment of the solar flare releasing energy during the 1997-2008 year period. The results of the analysis are as follows: during the 1997-2000 years, the solar flare released during the northern hemisphere was more energy than the southern hemisphere, and during the 1997-2008 year the energy released by the southern hemisphere flare exceeded the northern hemisphere. The relationship between the superactive area and the flare has a lot of research work, but the superactivity zone and the solar proton events and magnetism The study of violent relationship is very small. This paper sorted 12 super active regions from the angle of flare release energy from each active area, and then briefly analyzed the solar proton event effect and geomagnetic storm effect in the twenty-third week super activity area, and obtained the following results: 1. according to each of the flares produced in each super activity area in 1-8A The sum of the band flow integral values of the 12 superactive regions of the twenty-third solar activity week is sorted. The order of the 12 superactive regions from strong to weak is the following: the 1048610808107209415939310930907710484104881006983078100.2. superactivity area not only produces a lot of strong flare events, but also produces very strong flare events. Multiple GLE events and a certain number of large magnetic storms.
【學(xué)位授予單位】:南京信息工程大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:P182.41

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 尹素英,陳鵬飛,丁明德,方成;第22太陽活動周軟X射線耀斑的統(tǒng)計研究[J];南京大學(xué)學(xué)報(自然科學(xué)版);2002年04期

2 Ashish Goel;Arnab Rai Choudhuri;;The hemispheric asymmetry of solar activity during the last century and the solar dynamo[J];Research in Astronomy and Astrophysics;2009年01期

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