国家自然科学基金(10921303)

作品数：23被引量：37H指数：4
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相关作者：颜毅华翟倩李可军冯雯占腊生更多>>
相关机构：中国科学院国家天文台昆明理工大学中国科学院研究生院景德镇陶瓷学院更多>>
相关期刊：《第四纪研究》《Science China(Physics,Mechanics & Astronomy)》《Science Bulletin》《Research in Astronomy and Astrophysics》更多>>
相关主题：SUNFLARESMAGNETIC_FIELDSUNSPOTSSOLAR_ACTIVITY更多>>
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Observational cross helicity on the solar surface被引量：1
《Science China(Physics,Mechanics & Astronomy)》2014年第3期589-596,共8页ZHAO MingYu WANG XiaoFan ZHANG HongQi 
supported by the National Natural Science Foundation of China(Grant Nos.10611120338,10673016,10733020,10921303,41174153 and 11103041);the National Basic Research Program of China(973 Program)(Grant No.2006CB806301)
We analyzed the correlation of the solar magnetograms and Dopplergrams from SOHO/MDI and SDO/HMI respectively. It is found that the full disk correlation coefficient of Dopplergrams is more than 0.80 between SOHO/MDI ...
关键词：cross helicity photosphere magnetic fields solar activity 
The induced electric field distribution in the solar atmosphere
《Research in Astronomy and Astrophysics》2013年第6期729-738,共10页Rong Chen Zhi-Liang Yang Yuan-Yong Deng 
supported by a grant from the Key Laboratory of Solar Activity at National Astronomical Observatories, Chinese Academy of Sciences;by the National Natural Science Foundation of China (Grant Nos. U1231104, 10921303,11178005 and 11203036)
A method of calculating the induced electric field is presented. The induced electric field in the solar atmosphere is derived by the time variation of the magnetic field when the accumulation of charged particles is ...
关键词：Sun： magnetic fields - Sun： atmosphere - Sun： activity 
The contracting and unshearing motion of flare loops in the X 7.1 flare on 2005 January 20 during its rising phase
《Research in Astronomy and Astrophysics》2013年第5期526-536,共11页Tuan-Hui Zhou Jun-Feng Wang Dong Li Qi-Wu Song Victor Melnikov Hai-Sheng Ji 
supported by the National Natural Science Foundation of China(Grant Nos.10833007,11173062,10921303,11178002,10928307and11111120071);the National Basic Research Program of China(973program,Grant No.2011CB811402);supported by the Chinese Academy of Sciences via a visiting professorship for senior international scientists with grant No.2010t2j36;by the joint RFBR-CNSF(Grant No.11-02-91175);supported by the Open Research Program of the Key Laboratory of Solar Activity ofNational Astronomical Observatories;the Scientific Research Foundation of Nanjing Universityof Information Science and Technology(Grant Nos.S8110136001and N1081005072)
With the aim of studying the relationship between the relative motions of the loop-top （LT） source and footpoints （FPs） during the rising phase of solar flares, we give a detailed analysis of the X7.1 class flare ...
关键词：Sun： activity -- Sun： magnetic fields -- Sun： flares 
Solar flare prediction using highly stressed longitudinal magnetic field parameters被引量：3
《Research in Astronomy and Astrophysics》2013年第3期351-358,共8页Xin Huang Hua-Ning Wang 
supported by the National Basic Research Program of China (973 Program, Grant No. 2011CB811406);the National Natural Science Foundation of China(Grant Nos.11273031,10733020,10921303 and 11078010);the China Meteorological Administration grant (No. GYHY201106011)
Three new longitudinal magnetic field parameters are extracted from SOHO/MDI magnetograms to characterize properties of the stressed magnetic field in active regions, and their flare productivities are calculated for ...
关键词：Sun： magnetic fields -- Sun： flares -- methods： statistical 
基于以太网的CSRH天线阵控制系统研究方案
《天文研究与技术》2013年第1期99-102,共4页刘飞 何俊波 陈志军 颜毅华 王威 张煜 
国家重点基础研究发展计划"973"项目(2011CB811401);国家自然科学基金(10921303);国家重大科研装备研制项目(ZDYZ2009-3)资助
中国频谱日像仪(Chinese Spectral Radioheliograph,CSRH)一期工程包括40面天线(400 MHz～2 GHz)组成的天线阵,二期工程包括60面天线(2～15 GHz)。天线统一控制包括天线指向调整、目标源跟踪、射电定标等。无论何种情况,所有的天线均需...
关键词：射电日像仪 集散式控制系统 以太网 嵌入式单元 
中国北方地区(33°～41°N,108°～115°E)过去500年夏季降水量的周期成分分析被引量：10
《第四纪研究》2013年第1期126-135,共10页冯雯 李可军 翟倩 占腊生 
国家自然科学基金项目(批准号:10921303;10583032和11073010);国家重点基础研究发展规划项目(973项目)(批准号:2011CB811406和2012CB957801)共同资助
利用连续小波分析和经验模态分解方法,对我国北方地区(33°～41°N,108°～115°E)1470～2002年每年夏季降水量指数的时间序列进行了周期成分分析,探索全球气候变暖下的该地区降水量的多尺度变化特征。小波分析表明,降水量指数的可能周...
关键词：气候变化 降水量 经验模式分解分析 太阳活动 
Flares and magnetic non-potentiality of NOAA AR 11158被引量：1
《Research in Astronomy and Astrophysics》2013年第2期226-238,共13页Qiao Song Jun Zhang Shu-Hong Yang Yang Liu 
supported by the National Basic Research Program of China(973 program,Grant No. 2011CB811403);the National Natural Science Foundation of China (Grant Nos. 11025315,10921303,10973019,11003024,40890161,11203037 and 41074123);the CAS Project KJCX2-EW-T07
Magnetic non-potentiality is important for understanding flares and other solar activities in active regions （ARs）. Five non-potential parameters, i.e. electric current, current helicity, source field, photospheric ...
关键词：SUN activity -- Sun flares -- Sun magnetic fields -- Sun photosphere -- sunspots 
超高分辨率太阳射电事件及其相关太阳活动的研究
《天文研究与技术》2012年第4期366-369,共4页王蜀娟 刘玉英 颜毅华 傅其骏 
国家自然科学基金(10921303);973(MOST2011CB811401);国家重大科研装备研制项目(ZDYZ2009-3)资助
从2004年10月起,国家天文台怀柔射电频谱仪增加了新的超高分辨率观测模式:在1.10～1.34 GHz频带其时间分辨率为1.25 ms,频率分辨率为4 MHz。报告了3个超高分辨率下观测到的太阳射电精细结构事件,包括射电尖峰辐射、鱼群结构和重叠的精...
关键词：太阳射电 精细结构 太阳耀斑 日冕物质抛射 
Analysis of the CME-driven shock from the SEP event that occurred on 2006 December 14
《Research in Astronomy and Astrophysics》2012年第11期1535-1548,共14页Xin Wang Yi-Hua Yan 
supported by the National Natural Science Foundation of China (Grant No. 10921303);the National Basic Research Program of the Ministry of Science and Technology (MOST Grant No. 2011CB 811401)
In a solar flare or coronal mass ejection （CME）, observations of the subse- quent interplanetary shock provide us with strong evidence of particle acceleration to energies of multiple MeV, even up to GeV. Diffusive ...
关键词：acceleration of particles -- shock waves -- Sun： coronal mass ejections（CMEs） -- solar wind -- methods： numerical 
Influences of misprediction costs on solar flare prediction被引量：5
《Science China(Physics,Mechanics & Astronomy)》2012年第10期1956-1962,共7页HUANG Xin WANG HuaNing DAI XingHua 
supported by the Young Researcher Grant of National Astronomical Observatories,Chinese Academy of Sciences;the National Basic Research Program of China (Grant No.2011CB811406);the National Natural Science Foundation of China(Grant Nos.10733020,10921303 and 11078010)
The mispredictive costs of flaring and non-flaring samples are different for different applications of solar flare prediction.Hence,solar flare prediction is considered a cost sensitive problem.A cost sensitive solar ...
关键词：flares： forecasting sun： magnetic field cost sensitive learning 
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