国家自然科学基金(41174011)

作品数:16被引量:42H指数:4
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三维各向异性重力正演模型的高阶展开项评估
《地球科学前沿(汉斯)》2018年第3期500-512,共13页肖翼忻 霍学深 申文斌 
国家重点基础研究发展规划项目(973计划)(No.2013CB733305);国家自然科学基金(Nos.41631072,41721003,41429401,41210006,41174011,41128003,41021061)的资助。
全球范围地表浅层质量分布的重力正演,在计算评估布格异常、地壳均衡补偿、超高精度地球重力场构建及地球内部结构反演时具有重要意义。本文在考虑质量分布的三维各向异性的重力正演方法的基础上,考察GEMMA地壳结构模型下各个大地构造...
关键词:重力正演 球谐分析 地壳结构模型 级数展开 
Atmospheric acceleration and Earth-expansion deceleration of the Earth rotation被引量:2
《Geodesy and Geodynamics》2017年第6期421-426,共6页Wenbin Shen Sung-Ho Na 
partly supported by National 973 Project China(2013CB733305);NSFC(41174011,41210006,41504019);supported by a fund from Korea Astronomy and Space Science Institute(2016 Space Geodesy Project about Atmospheric/Ocean Tidal Effects)
Previous studies suggest that tidal friction gives rise to the secular deceleration of the Earth rotation by a quantity of about 2.25 ms/cy. Here we just consider additional contributions to the secular Earth rotation...
关键词:Atmosphere Tides Earth expansion Earth rotation change 
The effect of large reservoirs impoundment to the spatial and temporal variations of regional crustal deformation in Hubei Province, China被引量:1
《Geodesy and Geodynamics》2016年第5期377-386,共10页Wenbin Shen Xueqing Zhang 
supported by National 973 Project China (2013CB733302, 2013CB733305);National Natural Science Foundation of China (41174011, 41429401, 41210006, 41128003, 41021061)
The total capacity of Three Gorges Reservoir(TGR) and Danjiangkou Reservoir(DJR) is large and has significant seasonal fluctuations, which give rise to crustal instability. In this research, we focus on studying t...
关键词:Three Gorges Reservoir Danjiangkou Reservoir IMPOUNDMENT Crustal deformation EARTHQUAKE 
Detection of different-time-scale signals in the length of day variation based on EEMD analysis technique被引量:5
《Geodesy and Geodynamics》2016年第3期180-186,共7页Wenbin Shen Cunchao Peng 
supported by National 973 Project China (2013CB733305);National Natural Science Foundation of China (NSFCs) (41174011,41429401,41210006,41128003,41021061)
Scientists pay great attention to different-time-scale signals in the lengllh of day (LOD) variations △LOD, which provide signatures of the Earth's interior structure, couplings among different layers, and potenti...
关键词:Earth rotation Variation of length of day Ensemble empirical mode decomposition Periodic signals LOD fluctuation mechanism 
半参数Kalman滤波模型在GPS变形数据处理中的应用被引量:9
《施工技术》2015年第S2期818-821,共4页王成 何美琳 覃婕 文鸿雁 
国家自然科学基金项目(41071294);国家自然科学基金(41174011);广西空间信息与测绘重点实验室资助课题(桂科能1207115-06;1103108-02);广西矿冶与环境科学实验中心资助课题(KH2012ZD004);国家973计划(2013CB733305);国家自然基金创新群体(41021061)
提出半参数回归模型改进经典Kalman滤波系统误差和协方差矩阵,以消除系统误差对滤波的影响。将半参数Kalman滤波模型应用于GPS变形监测数据去噪等数据预处理中,并与自适应Kalman滤波和抗差自适应Kalman滤波进行对比,通过应用实例对比分...
关键词:GPS动态监测 KALMAN滤波 半参数模型 
Feasibility analysis of searching for the Slichter triplet in superconducting gravimeter records被引量:1
《Geodesy and Geodynamics》2015年第5期307-315,共9页Shen Wenbin Luan Wei 
supported by the National 973 Program of China(2013CB733305);the National Natural Science Foundation of China(41174011,41429401,41210006,41128003,41021061,41574007)
The search for the elusive Slichter triplet requires elaborate analysis of the elastic-gravi- tational mode characters and the non-stationary behavior of noisy time-series. A typical question is that it is difficult t...
关键词:Slichter tripletExcitation sourceSynthetic SG (superconductinggravimeter) seriesStacking 
Geopotential difference determination using optic-atomic clocks via coaxial cable time transfer technique and a synthetic test被引量:3
《Geodesy and Geodynamics》2015年第5期344-350,共7页Shen Ziyu Shen Wenbin 
supported by National 973 Project China(2013CB733301,2013CB733305);NSFC(41174011,41429401,41210006,41128003,41021061)
According to the general theory of relativity, two clocks placed at two different positions with different geopotentials run at different rates. Thus one can determine the geopotential difference between these two poi...
关键词:Geopotential differenceAtomic clockTime transferCoaxial cableSynthetic 
Evidences of the expanding Earth from space-geodetic data over solid land and sea level rise in recent two decades被引量:2
《Geodesy and Geodynamics》2015年第4期248-252,共5页Shen Wenbin Shen Ziyu Sun Rong Barkin Yuri 
supported by National 973 Project China(2013CB733305,2013CB733301);National Natural Science Foundation of China(41174011,41429401,41210006,41128003,41021061)
According to the space-geodetic data recorded at globally distributed stations over solid land spanning a period of more than 20-years under the International Terrestrial Reference Frame 2008,our previous estimate of ...
关键词:ITRF2008 coordinates Ice melting Thermal expansion Earth expansion Sea level rise (SLR)Space-geodetic data Velocities altimetry Earth's solid surface 
Estimation of the complex frequency of a harmonic signal based on a linear least squares method
《Geodesy and Geodynamics》2015年第3期220-225,共6页He Meilin Xiu Yanxia 
supported by National 973 Project China (2013CB733302,2013CB733305);NSFCs (41174011, 41429401, 41210006, 41128003, 41021061)
In this study, we propose a simple linear least squares estimation method(LLS) based on a Fourier transform to estimate the complex frequency of a harmonic signal. We first use a synthetically-generated noisy time ser...
关键词:Harmonic signal Complex frequency Least squares es 
Anomalous signals before 2011 Tohoku-oki Mw9.1 earthquake,detected by superconducting gravimeters and broadband seismometers被引量:3
《Geodesy and Geodynamics》2014年第2期24-31,共8页Gu Xiang Jiang Tianxing Zhang Wenqiang Huang Weihang Chang Zhiqiang Shen Wenbin 
supported by National 973 Project China(2013CB733305);NSFC(41174011,41128003,41210006,41021061,40974015)
The 2011 Tohoku-oki earthquake,occurred on 11 March,2011,is a great earthquake with a seismic magnitude Mw9. 1,before which an Mw7. 5 earthquake occurred. Focusing on this great earthquake event,we applied Hilbert-Hua...
关键词:earthquake anomalous signals superconducting gravity data broadband seismic data Hilbert-Huang Transform 
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