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第十二届全国日地空间物理学术讨论会

作者： TANG Chao-Ling~1 LU Li~2.LI Zhong-Yuan~1 1)School of Earth and space sciences.University of {2. and Technology of China,Hefei 2.002. 2.center for space {2. and applied research,chinese academy of sciences,beijing {12.

＜正＞Using four spacecraft observations from Cluster with a tetrahedron scale of～2.0 km,we analyzed plasma and field signatures which are associated with the magnetic reconnection region in the near-Earth magnetotail at XGSM=～17.5 RE on September 19,*** speed proton flow,with reversal from tailward to Earthward,was *** clear signatures of Hall quadrupolar （GSM-y） magnetic fields

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On the relationship between the postmidnight thermospheric equatorial mass anomaly and equatorial ionization anomaly under geomagnetic quiet conditions

On the relationship between the postmidnight thermospheric e...

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中国科学院地质与地球物理研究所第11届（2.11年度）学术年会

作者： Jing Liu,Libo Liu,Biqiang Zhao,Jiuhou Lei,and Weixing Wan 1 beijing National Observatory of space Environment,Institute of Geology and Geophysics,{2. academy of sciences,beijing,China. 2.Also at State Key Laboratory of space Weather,center for space science and applied research,{2. academy of sciences,beijing,China. 3 Graduate University of chinese academy of sciences,beijing,China. 4 School of Earth and space sciences,University of science and Technology of China,Hefei,China.

[1]The equatorial mass anomaly(EMA) in the thermosphere and equatorial ionization anomaly(EIA) in the ionosphere are two interesting phenomena in low-equatorial latitude *** studies have shown that the EMA appears between 1000 and 2.00 local time(LT) and its location of trough is aligned with dip equator,indicating the plausible role of the EIA structure in the development of *** this report,we conducted a statistical study of the occurrence of postmidnight EMA and EIA on the basis of the CHAMP in situ measurements during *** results revealed that clear EMA and EIA structures are sometimes visible in the postmidnight sector(0100-0600 LT) during geomagnetic quiet periods(Kp2.00 LT to %at 0600 *** occurrence of postmidnight EIA presents a wave-like pattern;however,no salient feature appears for the longitudinal occurrence of *** EMA is more likely to occur at lower solar activity,whereas an opposite trend presents in the *** the basis of above results,our findings imply that a simple EIA-EMA cause-effect relationship does not hold in the postmidnight sector.

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大椭圆空间碎片轨道寿命分析

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天文学报 2008年第3期49卷 297-305页

作者：熊建宁吴连大赵长印中国科学院紫金山天文台南京210008

日月摄动是影响大椭圆空间碎片轨道变化的主要动力学因素.本文推导出了日月摄动引起的大椭圆轨道近地点高度长周期项的分析表达式,对日月摄动引起的近地点变化基本特征进行了分析,并根据这种轨道变化特点给出了有利于空间碎片减缓的发... 详细信息

日月摄动是影响大椭圆空间碎片轨道变化的主要动力学因素.本文推导出了日月摄动引起的大椭圆轨道近地点高度长周期项的分析表达式,对日月摄动引起的近地点变化基本特征进行了分析,并根据这种轨道变化特点给出了有利于空间碎片减缓的发射窗口选择方法,通过仿真计算验证了该选择方法的正确性.

关键词：天体力学轨道计算和定轨,天体力学摄动理论

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Effects of a hypogeomagnetic field on gravitropism and germination in soybean

Effects of a hypogeomagnetic field on gravitropism and germi...

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2.11年空间生命与生命起源暨航天医学工程学术研讨会

作者： Wei-chuan Mo~(1,2.,Zi-jian Zhang~(1,2.,Ying Liu~(1,2.,Guang-jie Zhai~3, Yuan-da Jiang~3,Rong-qiao He~(1,2. 1 The State Key Laboratory of Brain and Cognitive sciences,Institute of Biophysics,chinese {2. of sciences,15 Datun Road,Chaoyang District,beijing 100101,China 2.Graduate University of the chinese academy of sciences,Yuquan Road,beijing 100049,China 3 center for space science and applied research,chinese {2. of sciences,1 Zhongguancun Nanertiao Road,Haidian District,beijing 100190,China.

＜正＞Hypogeomagnetic field（HGMF）refers to a geomagnetic field（GMF）eliminated environment,which is one of the characteristic environmental factor in outer space. Any plants grown during long-term space missions will inevitably experience the hypogeomagnetic *** is possible that the innate adaptation of plants to the

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The global image of the Moon obtained by the Chang'E-1:Data processing and lunar cartography

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science China Earth sciences 2010年第8期53卷 1091-1102页

作者： LI ChunLai1, LIU JianJun1, REN Xin1, MOU LingLi1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang2. YANG JianFeng2. ZOU XiaoDuan1, WANG Min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan11 National astronomical observatories,{2., beijing 100012, China 2.Xi’an Institute of Optics and Precision Mechanics,{2., Xi’an 710119, China 1. National astronomical observatories Chinese Academy of Sciences Beijing 100012 China2. Xi’an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi’an 710119 China

The global lunar image of the first phase of chinese Lunar Exploration Program is the first image that covered all over the surface of the Moon. It will serve as a critical foundation for succeeding exploration and scientific research. In this paper, the acquisition, characteristics, and data quality of Chang'E-1 CCD image data are described in detail. Also described are the methodology and procedure of data processing. According to rule of planetary cartography, the image data have been processed, geometrically corrected, and then mosaicked and merged in a scale of 1:2.5 million. The results of data processing and charting show that the image data of Chang'E-1 CCD and their geometric precision meet the demand of charting a map in the scale of 1:2.5 million. The relative geometric positioning precision of the global image is better than 2.0 m, and the absolute geometric positioning precision is slightly better than that of the ULCN2.05 and Clementine lunar basemap (V2.0). The plane positioning precision is approximately 100-1500 m. This global image proves to be the best global image of the Moon so far in terms of {2. coverage, image quality, and positioning precision.

关键词： Chang’E-1 lunar CCD data processing lunar image position lunar global image

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Ionospheric TEC Response to Small and Faint Solar Flares

Ionospheric TEC Response to Small and Faint Solar Flares

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第十一届全国日地空间物理学术讨论会

作者： HUANG Wen-geng GU Shi-fen CHEN Yan-hong MA Guan-yi SHEN Hua (center for space {2. and applied research, The chinese academy of {2., beijing 100080

＜正＞Using GPS observational data of multi-sites provided by International GPS Service （IGS）, the effect of below M-class small and faint solar flares on ionospheric total electron content （TEC） of sunlit hemisphere were analyzed. By traditional method, the results show that one cannot see and distinguish this typical flare occurred from curves for TEC and its change rate with time obtained by single line of sight （LOS） between receiver on the ground and GPS satellite, because their fluctuation levels are comparable with normal ionospheric variations, which make flare information be immerged in background noise. In this paper, a data processing method name by coherent summation was used to investigate ionospheric TEC enhancement caused by a small and faint C-class SF solar flare derived from 18 GPS stations data （which is composed of more than 90 LOS at any time during flare）. It is found that this method can substantially eliminate background ionospheric TEC variation "noise", and ionospheric response to flare is very clear and obvious by this method, which can usually only be seen in big flares. By comparison, the time characteristic of TEC variation is in good agreement with X-ray data from GOES satellite in start, peak and end time of flare occurred, and the maximum enhancement of average TEC is below 0.1TECU, which is about one or more orders smaller than that caused by X-class solar flares.

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A comparison of mesospheric winds measured by FPI and meteor radar located at 40N

A comparison of mesospheric winds measured by FPI and meteor...

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第十四届全国日地空间物理学术研讨会

作者： JIANG GuoYing1 XU JiYao1 Yuan Wei1 Ning BaiQi2.Wan WeiXing2.& Hu LianHuan2.(1 State Key Laboratory of space Weather, center for space science and applied research, chinese academy of sciences, beijing 100190) (2.beijing National Observatory of space Environment, Institute of Geology and Geophysics, chinese academy of sciences, beijing 10002.)

Winds derived from OH Meinel 892.0 nm detection by a FPI （Fabery-Perot Interferometer） are compared with the simultaneous wind measurements from a meteor radar during April - May of 2.10. The peak height of OH Meinel 892.0 nm is about 87 km. The variation of FPI wind at 87 km mostly have the similar track to meteor radar wind at 87 km, and the data values of FPI wind mainly fall into the range of meteor radar wind. However, there are still quantitative differences between the observations of the two systems. The best linear correlation occurs in meridional winds of two systems in April of 2.10;and （3） An obvious wave signal with 0.2.cycle/day frequency is found in meridional winds observed by both FPI and meteor radar.

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Oxidation Experiment of Natural Megacrystal Ch'nopyroxene: Implications for Assignment of Mossbauer Spectra

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Acta Geologica Sinica(English Edition) 2001年第1期 51-58页

作者： ZHI Xiachen, CHEN PengDepartment of Earth and space sciences, University of {2. and Technology of China Laboratory of Chemical Geodynamics, USTC Advanced research center for Earth {2. and Astronomy in USTC, Third World academy of {2., Hefei 2.002. LIN Chengzhong, CHEN Shuqing, ZHANG guilanInstitute of Mineral Resources, chinese academy of Geology sciences, {12. 100037LI Yuzhi and LIN Lei Open Laboratory of Structure Analysis, USTC, Hefei 2.002.

The Mossbauer spectra of natural megacrystal clinopyroxene are usually fitted by 4 sets of symmetric doublets, A-A', B-B', C-C' and D-D', respectively, in terms of increasing Qs value in literature. But the assignments of those doublets are quite different, except the D-D' doublet assigned to Fe3+ at the lattice site Ml in previous papers. Particularly, the assignment and interpretation of the C-C' doublet are *** oxidation experiments of natural megacrystal clinopyroxene collected from the Hannuoba basalt, North China, were performed under controlled conditions of temperature at 1000℃ and oxygen fugacity of FMQ buffer in 1, 2. 3 and 5 days respectively. The oxidized samples were then measured by X-ray diffraction spectrometry and Mossbauer spectrometry. The oxidation of clinopyroxene is characterized by Fe2.→ Fe3+ at Ml under the subsolidus conditions, which is consistent with the increase of the area of the D-D' doublet when the heating time increases. Accordingly, the area of the A-A' and B

关键词： megacrystal clinopyroxene Mossbauer spectrum oxidation experiment anomalous doublet

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The Analysis of Atmospheric water vapor based on Ground-based Microwave Radiometer

The Analysis of Atmospheric water vapor based on Ground-base...

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2.10 International Conference on Remote Sensing (ICRS 2.10)

作者： HE Jieying SUN Fenglin National microwave remote sensing laboratory center for space {2. and applied research CAS graduate university chinese academy of sciences beijing China ZHANG Shengwei ZHANG Yu National microwave remote sensing laboratory center for space {2. and applied research CAS beijing China

The paper introduces a widely used atmospheric absorption models: MPM by Liebe in *** this absorption model,the paper simulates the temperature and humidity weighting functions and brightness temperature according to the different frequencies and bandwidth of the multi-channel ground-based microwave *** results show that simulated brightness temperatures are very well agreement with the observation values with an acceptable root mean square *** paper uses widely used retrieval method of artificial neural network to obtain the water vapor density profiles and calculates the root mean square error of each ***,to improve the accuracy of retrievals,this paper adopts multi-layers neural network which has two hidden *** results show that the retrievals of water vapor density profiles based on ground-based microwave radiometer are agreement with the water vapor density profile which is observed by radiosonde.

关键词： atmospheric absorption model ground-based root mean square err water vapor density profile

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An X-Band Transmitter For Small Satellites

An X-Band Transmitter For Small Satellites

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2.07 5th International Conference on Microwave and Millimeter Wave Technology(ICMMT’2.07)

作者： Liang Xianfeng Geng Hao Jiang Yaxiang Xie Chunjian Chen Xiaomin Sun Huixian center for space {2. and applied research chinese academy of sciences NO.1 Nanertiao Zhongguancun Haidian district beijing China 100080

An X-Band QPSK transmitter designed for data rates up to 150Mbps for small satellites with power,mass and size constraints is described in this paper.A direct modulation method where the baseband data directly modulate the X-band carrier is applied to the development of the X-band *** method can reduce the complexity and size of the hardware.14W （41.5dBm） RF output power of the X-band transmitter at 8.2.Hz center frequency is obtained by a solid state power amplifier （SSPA）.

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