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| 1 | Using repeated precise gps campaigns for research of present-day crustal movement and strain in the Qinghai-Tibetan Plateau显示文摘The problem of crustal movement in the Qing-hai-Tibetan Plateau is a hotstopic of the present-day international geodetic world. GPS observations in 1993, 1995 and 1997 are used to survey the three-dimensional displacement of GPS monitoring station in the Qinghai-Tibetan Plateau, and to calculate and analyze the present-day crustal movement and strain in the Qinghai-Tibetan Plateau. The result of repeated campaign shows that the crustal movement in the Qinghai-Tibetan Plateau is still compressing in the north and south directions, extending in the west and east directions, and uplifting in the vertical direction. The relative convergence velocity of the Himalayan block is approximately (19.5±1.7)mm/a, the strain velocity is about (5.5±6.0) mm/a, and the uplifting velocity is some (7.6±5.2) mm/a. The compression velocity of the Tibet block relative to Golmud in the north and south directions is (9.3±4.6) mm/a, the strain velocity of the middle part in the west and east directions is (15.6±6.3) mm/a, | LIU Jingnan XU Caijun SONG Chenghua SHI Chuang JIANG Weiping DONG Lixiang | 2001 | Chinese Science Bulletin2001，46，8： | 8 |
| 2 | A new charging scheme in an emergency department observation unit under Beijing's basic medical insurance显示文摘 | He Xinhua Gao Li Teng Fei Liu Changhai Wang Shuo Wu Caijun Xu Li Li Chunsheng | 2014 | Chinese Medical Journal2014，，18： | 3 |
| 3 | Numerical simulation of influences of the earth medium's lateral heterogeneity on co- and post-seismic deformation显示文摘Many studies revealed that the Earth medium's lateral heterogeneity can cause considerable effects on the co- and post-seismic deformation field. In this study, the threedimensional finite element numerical method are adopted to quantify the effects of lateral heterogeneity caused by material parameters and fault dip angle on the co- and postseismic deformation in the near- and far-field. Our results show that: 1) the medium's lateral heterogeneity does affect the co-seismic deformation, with the effects increasing with the medium's lateral heterogeneity caused by material parameters; 2) the Lame parameters play a more dominant role than density in the effects caused by lateral heterogeneity; 3) when a fault's dip angle is smaller than 90, the effects of the medium's lateral heterogeneity on the hanging wall are greater than on the footwall; 4) the impact of lateral heterogeneity caused by the viscosity coefficient on the post-seismic deformation can affect a large area, including the near- and far-field. | Xu Bei Xu Caijun | 2015 | Geodesy and Geodynamics2015，6，1： | 3 |
| 4 | Recent developments in seismological geodesy显示文摘With the advanced development of the modern geodetic techniques, the geodetic observations have been proved to be more powerful to uncover the geophysical phenomena,especially the seismic one, than that in the past time. The recent developments and achievements in the seismological geodesy are summarised here. Several popular geodetic techniques, such as high-rate GNSS, In SAR and Satellite Gravimetry, are introduced first to present their recent contributions in studying the seismic deformations. The developments of the joint inversion of the seismic source parameters from multiple observations are then highlighted. Some outlooks in seismological geodesy are presented in the end. | Caijun Xu Zheng Gong Jieming Niu | 2016 | Geodesy and Geodynamics2016，7，3： | 3 |
| 5 | Adaptive Filter in SAR Interferometry Derived DEM显示文摘In this paper, the performance of median filter, elevation dependent adaptive sigma median filter, and directionally dependent adaptive sigma median filter are tested on both InSAR Tandem DEM and simulated high-level noisy DEM. Through the comparison, the directionally dependent adaptive sigma median filter is proved to be the most effective one not only in the noise removing but also in the boundary preserve. | XU Caijun WANG Hua WANG Jianglin GE Linlin | 2005 | Geo-Spatial Information Science2005，8，3： | 3 |
| 6 | Comparative Study of Three Warm-season Forage Varieties in Southern China显示文摘The plant height,tiller number,yield of three warm-season forage varieties in Southern China were studied for consecutive two years.The result showed that the three varieties all adapted to the environmental conditions.The annual fresh grass yield of Pennisetum purpureum Schum ev.Taiwan,Guimu-1 hybrid P.purpureum and P.sinese Roxb were 220.85,163.18,186.20 t/hm^2;the crude protein content were 17.39%,19.02%and 20.91%;the crude fat content were 6.37%,5.37%and 4.69%;and the crude fiber content were 33.49%,32.22%and 33.58%,respectively.P.purpureum Schum ev.Taiwan had stronger cold resistance,fast growth after overwintering and strong resistance,and no plant diseases and insect pests were found during the test.P.purpureum Schum ev.Taiwan is a high yield and high quality forage variety,which is worth popularizing and applying. | Sun Ao Deng Huifen Li Caijun Jiang Guitao Zhang Xu Li Jianbo | 2019 | Animal Husbandry and Feed Science2019，11，3： | 2 |
| 7 | RESEARCH ON THE DEFORMATIONS IN QINGHAI_TIBET PLATEAU AND ITS MARGINS BY INVERTING SEISMIC MOMENT TENSORS AND GPS VELOCITIES显示文摘We have determined approximate average rates of deformation in the Qinghai_Tibet plateau and its margins from the GPS data for last 10 years and the moment tensors from earthquakes between 1900 and 1999.We also determined the strain rate (seismic strain rate) associated with the seismic deformation using 254 M w ≥5.0 earthquakes,and estimated the shortening and extension rates for every block in the area as well.We also estimated the strain rate (geodetic strain rate)by 80 GPS sites’ velocity vectors and analyzed characteristic of kinematics by two kinds of strain rates and discussed earthquake potential in the area.As a result,the deformation rates from seismic moment tensors and from GPS velocities are basically agreed with each other.It is feasible to analyze seismic risk by comparing geodetic strain rate with seismic strain rate based on the opinion that strain energy will be released through earthquake.It is concluded that there is no strong earthquake potential (>M7) in the Qinghai_Tibet plateau and its margins,but there is earthquake potential (>M5) in middle Tibet in a few years. | Xu Caijun Liu Jingnan Li Zhicai Dong Lixiang | 2000 | Geo-Spatial Information Science2000，3，4： | 2 |
| 8 | Study on crustal deformation of Wenchuan Ms8.0 earthquake using wide-swath ScanSAR and MODIS显示文摘This paper presents a broad-range study of the co-seismic deformation field of Wenchuan Ms8.0 earthquake by ScanSAR interferometry.The results show co-seismic displacements ranging from-19.8 on the footwall side of the seismogenic fault to 73.6 cm on the hanging-wall side,or from-22.4 to 77.2 cm with atmospheric-delay correction by MODIS.These results differ from the GPS line-of-sight results by 4.58 cm to 2.78 cm,respectively,on the average.We could not obtain the displacements near the earthquake-rupture zone due to incoherence problem. | Xu Caijun Wang Hao Jiang Guoyan | 2011 | Geodesy and Geodynamics2011，2，2： | 1 |
| 9 | Identification and analyze of crustal motion and deformation models in the Si- ehuan-Yunnan region 显示文摘 | XU Caijun WEN Yangmao | 2007 | Journal Applied Geodesy2007，1，4： | 1 |
| 10 | Research on an Intraplate Movement Model by Inversion of GPS Data in North China显示文摘 | Wu Jichang Xu Caijun Chao Dingbo | 2001 | Journal of Geodynamics2001，31，： | 1 |
| 11 | Identification and analyze of crustal motion and deformation models in the Sichuan-Yun- nan region 显示文摘 | Xu Caijun and Wen Yangmao | 2007 | Journal of Applied Geodesy2007，1，4： | 1 |
| 12 | Dual threshold search method for asperity boundary determination based on geodetic and seismic catalog data显示文摘As an important model for explaining the seismic rupture mode,the asperity model plays an important role in studying the stress accumulation of faults and the location of earthquake initiation.Taking Qilian-Haiyuan fault as an example,this paper combines geodetic method and b-value method to propose a multi-source observation data fusion detection method that accurately determines the asperity boundary named dual threshold search method.The method is based on the criterion that the b-value asperity boundary should be most consistent with the slip deficit rate asperity boundary.Then the optimal threshold combination of slip deficit rate and b-value is obtained through threshold search,which can be used to determine the boundary of the asperity.Based on this method,the study finds that there are four potential asperities on the Qilian-Haiyuan fault:two asperities(A1 and A2)are on the Tuolaishan segment and the other two asperities(B and C)are on Lenglongling segment and Jinqianghe segment,respectively.Among them,the lengths of asperities A1 and A2 on Tuolaishan segment are 17.0 km and 64.8 km,respectively.And the lower boundaries are 5.5 km and 15.5 km,respectively;The length of asperity B on Lenglongling segment is 70.7 km,and the lower boundary is 10.2 km.The length of asperity C on Jinqianghe segment is 42.3 km,and the lower boundary is 8.3 km. | Xiaohang Wang Zhongzheng Zhou Caijun Xu Yangmao Wen Hu Liu | 2022 | Geodesy and Geodynamics2022，13，4： | 1 |
| 13 | Strain rates in the Sichuan-Yunnan region based upon the total least squares heterogeneous strain model from GPS data 显示文摘 | Xu Caijun Wang Leyang Wen Yangmao | 2011 | Terr Atmos Ocean Sci2011，22，2： | 1 |
| 14 | InSAR tropospheric delay mitiga tion by GPS observations:A case study in Tokyo area显示文摘 | Xu Caijun | | 0，，： | 1 |
| 15 | 2000a, GPS measurement of present day uplift in the southern Tibet显示文摘 | Xu Caijun Liu Jingnan Song Chenhua | 2000 | Earth Planet Space2000，52，： | 1 |
| 16 | GPS measurements of present-day uplift in the Southern Tibet 显示文摘 | Xu Caijun | 2000 | Earth Planets Space2000，52，： | 1 |
| 17 | InSAR tropospheric Delay mitigation by GPS observations: A case study in Tokyo area显示文摘 | Caijun Xu | 2006 | Journal of Atmospheric and Solar-Terrestrial Physics2006，68，6： | 1 |
| 18 | Methods of Determining Weight Scaling Factors for Geodetic-geophysical Joint Inversion显示文摘 | Xu Caijun Ding Kaihua Cai Jianqing | 2009 | Journal of Geodynamics2009，47，： | 1 |
| 19 | Strain Rates in the Sichuan-Yunnan Region Based upon the Total Least Squares Heterogeneous Strain Model from GPS Data显示文摘 | XU Caijun WANG Leyang WEN Yangmao | 2011 | Terrestrial Atmospheric and Oceanic Sciences2011，22，2： | 1 |
| 20 | InSAR tropospheric delay mitigation by GPS observations : A case study in Tokyo area 显示文摘 | Caijun Xu | 2006 | Journal of Atmospheric and Solar- Terrestrial Physics2006，68，6： | 1 |
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