地球物理学报最新文献

{"title":"Cenozoic mountain-building processes in the Daliangshan, southeastern margin of the Tibetan Plateau: Evidence from low-temperature thermochronology and thermal modeling","authors":"B. Deng","doi":"10.15496/PUBLIKATION-14471","DOIUrl":"https://doi.org/10.15496/PUBLIKATION-14471","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77130018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GNSS radio occultation technique for near-Earth space environment detection","authors":"X. Yue, Yongxin Guo, Z. Zeng, W. Wan","doi":"10.6038/cjg20160401","DOIUrl":"https://doi.org/10.6038/cjg20160401","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71079411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Source parameters for the 2015 Nepal earthquake revealed by InSAR observations and strong ground motion simulation","authors":"Y. Li, W. Shen, Y. Wen, J. Zhang, Zhenhong Li, W. Jiang, Y. Luo","doi":"10.6038/CJG20160417","DOIUrl":"https://doi.org/10.6038/CJG20160417","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75256454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The research of ocean tide loading effects on gravity and ambient noise at Zhongshan and Syowa station in Antarctic","authors":"Liu Qing-chao, Sun He-ping, Xu Jianqiao, Lt, strong gt, Chen Xiao-Dong lt, Zhang Miao-miao, He Qian-qian","doi":"10.6038/cjg20160805","DOIUrl":"https://doi.org/10.6038/cjg20160805","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71079745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal-spatial variations of sea level over China seas derived from altimeter data of TOPEX/Poseidon, Jason-1 and Jason-2 from 1993 to 2012","authors":"Guo Jin-yun, Wang Jianbo, Hu Zhi-bo, C. Hwang, Chen Chuanfa, Gao Yong-gang","doi":"10.6038/CJG20150908","DOIUrl":"https://doi.org/10.6038/CJG20150908","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75121121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sedimentary evolution since Quaternary in the Shenhu hydrate drilling area, northern South China Sea","authors":"Su Ming, Sha Zhi-bin, Qi Shao-hua, Y. Rui, Wu Nengyou, Cong Xiaorong, L. Jie","doi":"10.6038/CJG20150829","DOIUrl":"https://doi.org/10.6038/CJG20150829","url":null,"abstract":"The marine gas hydrate samples in China were for the first time acquired in the Shenhu area,northern continental slope of the South China Sea.However,due to erosion by the submarine canyons,the stratigraphic comparison and identification of sedimentary facies were difficult,leading to the lack of description of seismic-sedimentary facies,analysis of forming mechanisms and distribution of the sedimentary units.Moreover,few researches focused on the sedimentary evolution since Quaternary,and the crucial controlling factors on the heterogeneous distribution of gas hydrate are not clearly understood.Using high-resolution 2D/3Dseismic data,this study attempts to classify the seismic facies and discuss the sedimentary evolution in this area since Quaternary.This work is based on the high-resolution 2Dand 3Dseismic data obtained by Guangzhou Marine Geological Survey in 2006,with a trace interval of 12.5mand vertical resolution of 10~20 m.Firstly,we make an integrated analysis of seafloor topographic features,sequence stratigraphic framework and high-resolution seismic data,perform a classification of seismic facies have been classified,and describe morphological features and internal architectures accurately.Secondly,in terms of sediment supplies from the north and seafloor topography,deep-water sedimentary process is analyzed.Also,the sedimentary evolutions since Quaternary are re-built.Subsequently,the relationship between deep-water sediments since Quaternary and distribution of gas hydrates are discussed.Five types of seismic facies were identified,involving prograding slopes,small-scale turbidite channels in the Early Quaternary,sediment failures(including slides and slumps),submarine canyons and concomitant transformation of deposits,and the mixture of abysmal deposits and mass transport complex.The three phases of sedimentary evolution since Quaternary in the Shenhu area were re-built,which are turbidite channels erosion and re-deposited sediments,prograding slopes and sediments failures,and erosion and sedimentation of submarine canyons.Eroded by small-scale turbidites,re-deposited sediments would be near-source stacked with relatively good property conditions,which might be regarded as the potential suitable reservoirs for gas hydrates.The deposits transported from prograding slopes could lose the balance easily and result in sediments failures widespread in the Shenhu area.Because of the fine-grain particle and vertical continuity,sediment failures could be thought as the regional cap rock.Abundant submarine canyons and concomitant transformation of deposits could erode and destroy underlying strata,which modified suitable deposits as patch distribution.Hence,the sedimentary evolution since Quaternary was considered as one of the crucial controlling factors on the heterogeneous distribution of gas hydrate in the Shenhu hydrate drilling area,northern South China Sea.","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71079111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications and challenges of near surface geophysics in geotechnical engineering","authors":"Chih‐Ping Lin, Chun-Hung Lin, Po-Lin Wu, Hsin-Chang Liu, Ying-Chun Hung","doi":"10.6038/CJG20150806","DOIUrl":"https://doi.org/10.6038/CJG20150806","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78226339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trends of glacial mass changes in High Asia from satellite gravity observations","authors":"Chuandong Zhu, Yang Lu, Hongling Shi, Zizhan Zhang, Z. Du, Chunchun Gao","doi":"10.6038/CJG20150309","DOIUrl":"https://doi.org/10.6038/CJG20150309","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71078625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ice sheet mass balance in Antarctica measured by GRACE and its uncertainty","authors":"Chunchun Gao, Yang Lu, Zizhan Zhang, Hongling Shi, Chuandong Zhu","doi":"10.6038/CJG20150308","DOIUrl":"https://doi.org/10.6038/CJG20150308","url":null,"abstract":"As a critical component of the cryosphere,the Antarctic Ice Sheet(AIS)has strongconnection with the sea level change and global climate change.Accurate quantification of the current spatial and temporal mass changes of AIS is very important to improve our understanding and prediction of its response and contribution to global change.The Gravity Recovery and Climate Experiment(GRACE)mission has provided new and useful observations to detect AIS mass balance since its launch in March 2002.There are significant differences among the GRACE estimates of the total mass change.The big difference is due in part to considerable uncertainty in the accuracy of glacial isostatic adjustment(GIA)signals,and also due to use of different time spans,different versions of GRACE products and different GRACE post-processing methods.Using 124 monthly GRACE gravity field solutions of Release 5(RL05)produced at the Center for Space Research(CSR)of the University of Texas,Austin,spanning the interval from January of 2003 through December of 2013,the mass balance of AIS is estimated by two postprocessing ways:the optimizing averaging kernel method(also named VW)and the combined filter method(the first step is called P5M11 decorrelation filter to remove correlated noise by fitting and subtracting a fifth-order polynomial to even and odd coefficient pairs at spherical harmonic orders eleven and above,the second involves smoothing with a 250 km Gaussian filter).A detailed error analysis is provided including consideration of leakage-in,leakage-out,and errors in modeling mass variations of the atmosphere,ocean and GIA.In addition,a statistical model selection criterion is employed in computation of trends from mass variation time series,and the impact of K1 tidal alias is analyzed.The results reveal that during 2003—2013,the total mass of the ice sheet decreased significantly at change rates of-163±50,-129±41and-81±27Gt/a for three GIA models:GW13,IJ05,W12 a.There was a distinct region with mass loss in the Amundsen Sea Embayment of West Antarctic ice sheet and the Northern Antarctic Peninsula,while an increasing mass gain was concentrated in the Dronning Maud Land and the Enderby Land of East Antarctic ice sheet.Furthermore,we use hypotheses testing and information criteria evaluation to select the best trend model fitting together with sinusoidal functions of annual(365.0-d)and semi-annual(181.0-d)signals and the S2(161.0-d),K1(2725.4-d)and K2(1362.7-d)tidal aliases.We found that K1 tidal alias has a potential to falsify the acceleration estimates.Although it is not good enough to confirm the K1 tidal alias based on an eleven-year time-series,the impact of K1 tidal alias deserves further notice.By comparing the quantities of total mass balance computed by the two different processing methods and three different GIA models in the Antarctica,we find that the differences are less than 15Gt/a between two processing methods,but the largest difference is about 80 Gt/a between di","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71078606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"澳大利亚悉尼 Long Reef Beach 中新世古土壤岩石磁学特征及环境意义","authors":"Tao Wang, Hu Guo, Xiuming Liu, Bin Lü, Xue-Gang Mao, Zi-Bo Zhou, Changhui Wen, Shun-Min Hou, Long-Jian Su","doi":"10.6038/CJG20150322","DOIUrl":"https://doi.org/10.6038/CJG20150322","url":null,"abstract":"","PeriodicalId":55257,"journal":{"name":"地球物理学报","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71078677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}