检索结果-南通市图书馆

A scalable software package for time series reconstruction of remote sensing datasets on the Google Earth Engine platform

引用

International Journal of Digital Earth 2023年第1期16卷 988-1007页

作者： Jie Zhou Massimo Menenti Li jia Bo Gao Feng Zhao Yilin Cui Xuqian Xiong Xuan liu Dengchao Li Key Laboratory for Geographical Process Analysis&Simulation of Hubei Province College of Urban and Environmental SciencesCentral China Normal UniversityWuhanPeople’s Republic of China State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingPeople’s Republic of China Faculty of Civil Engineering and Geosciences Delft University of TechnologyDelftThe Netherlands College of Resources Environment and Tourism Capital Normal UniversityBeijingPeople’s Republic of China The First geological brigade of Hubei geological Bureau HuangshiPeople’s Republic of China

Spatiotemporal residual noise in terrestrial earth observation products,often caused by unfavorable atmospheric conditions,impedes their broad *** users prefer to use gap-filled remote sensing products with time series reconstruction(TSR)*** currently available implementations of TSR to large-volume datasets is time-consuming and challenging for non-professional users with limited computation or storage *** study introduces a new open-source software package entitled‘HANTS-GEE’that implements a well-known and robust TSR algorithm,*** ANalysis of Time Series(HANTS),on the Google Earth Engine(GEE)platform for scalable reconstruction of terrestrial earth observation *** tasks can be conducted on user-defined spatiotemporal extents when raw datasets are available on *** to site-based and regional-based case evaluation,the new tool can effectively eliminate cloud contamination in the time series of earth observation *** with traditional PC-based HANTS implementation,the HANTS-GEE provides quite consistent reconstruction results for most terrestrial vegetated *** HANTS-GEE can provide scalable reconstruction services with accelerated processing speed and reduced internet data transmission volume,promoting algorithm usage by much broader user *** our knowledge,the software package is thefirst tool to support full-stack TSR processing for popular open-access satellite sensors on cloud platforms.

关键词： Time series reconstruction remote sensing Google Earth Engine HANTS gap-filling

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dinosaur-bearing strata and K/T boundary in the Luanchuan-Tantou Basin of western Henan Province,China

引用

Science China Earth sciences 2011年第8期54卷 1149-1155页

作者： jiaNG XiaoJun liu YongQing JI ShuAn ZHANG XingLiao XU Li jia SongHai LO JunChang YUAN ChongXi LI Ming institute of geology Chinese Academy of Geological Sciences Beijing 100037 China Henan geological Museum Zhengzhou 450000 China

The sequence stratigraphy and geochronology of the terrestrial dinosaur-bearing strata,i.e.,the Qiupa Formation,were poorly studied in the Luanchuan-Tantou Basin in western Henan,*** study shows that these strata represent a complete succession from the Late Cretaceous to the early Paleogene,including the K/T boundary,in this *** we report a detailed study of the K/T boundary,especially its stratigraphic sequence,sedimentary characteristics,integrity,continuity,and geological implications.

关键词： western Henan Luanchuan-Tantou Basin dinosaurs stratigraphy K/T boundary

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Comprehensive Method for the Risk Assessment of Ground Fissures:Case Study of the Eastern Weihe Basin

引用

Journal of Earth Science 2023年第6期34卷 1892-1907页

作者： Zhijie jia jianbing Peng Quanzhong Lu Penghui Ma jianwei Qiao Feiyong Wang Mingdong Zang Yang liu Junyan Zhao Fengji Zhu School of geological Engineering and Geomatics Chang'an UniversityXi'an 710054China Key Laboratory of Western Mineral Resources and geological Engineering Ministry of Education Chang'an UniversityXi'an 710064China China JK institute of Engineering and Design Xian 710043China School of Engineering and Technology China University of GeosciencesBeijing 100083China

Ground fissures are influenced by the coupling of geological factors and human *** threaten the safety of infrastructure and restrict town planning in many areas in *** of the area most severely affected by ground fissures is the Weihe Basin in North China,which has the most extensive distribution of ground fissures and all the elements that control their occurrence,pro-viding an ideal study area for the study of ground *** this study,we took the eastern Weihe Ba-sin as the study area and determined the distribution and hazard characteristics of ground fissures via field *** on the analytic hierarchy process,we propose a multi-level,comprehensive method for evaluating the hazards of ground *** method considers the geological back-ground,development status,and triggering factors of ground fissures,including all nine currently known assessment indices of ground *** used judgment matrices to rank the constructed ground fissure assessment index system at the single and total levels and quantified the nine assessment indices of ground fissures according to the field survey ***,we plotted the ground fissure risk zoning map and evaluated the ground fissure risk at the study *** findings indicated that the proposed method could facilitate ground fissure hazard assessment and prediction and provide support for hazard prevention and urban/rural planning.

关键词： ground fissure analytic hierarchy process hazards risk assessment hazard prevention

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于时序InSAR技术的中贵天然气管道天水市段沿线滑坡隐患识别与形变分析

引用

科学技术与工程 2024年第4期24卷 1357-1369页

作者：方迎潮王小松蒋毅顿佳伟冯文凯刘威丁治文张洋铭中国科学院水利部成都山地灾害与环境研究所山地灾害与地表过程重点实验室成都610041 中国科学院大学北京100049 国家管网集团西南管道有限责任公司成都610041 地质灾害防治与地质环境保护国家重点实验室(成都理工大学) 成都610051 中国石油西南油气田公司川西北气矿绵阳621000

中贵天然气管道天水市段沿线地处黄土高原,地貌类型多样、构造活跃、复杂地质条件下发育多种具有隐蔽性和潜伏性的地质灾害,其中滑坡灾害对中贵天然气管道的安全危害极大,因此,对中贵天然气管道天水段沿线滑坡隐患进行有效识别与分析具... 详细信息

中贵天然气管道天水市段沿线地处黄土高原,地貌类型多样、构造活跃、复杂地质条件下发育多种具有隐蔽性和潜伏性的地质灾害,其中滑坡灾害对中贵天然气管道的安全危害极大,因此,对中贵天然气管道天水段沿线滑坡隐患进行有效识别与分析具有重要意义。采用Sentinel-1A升降轨卫星数据,基于时序合成孔径雷达干涉测量(synthetic aperture radar interferometry,InSAR)对中贵天然气天水段沿线滑坡隐患进行了解译识别、现场复核、发育特征与典型滑坡形变分析。研究区共识别17处滑坡隐患点,现场复核最终确定13处,其余4处为人类工程活动区,其中常沟村和磨峪沟村滑坡形变受降雨影响。统计发现研究区管道沿线滑坡多发生在坡度40°~50°,高差400~600 m,东北坡向和距管道100~150 m范围内,且岩土体强度较低,地层以第四系全新统冲洪积层(Q_(4)^(a1+p1))为主。结果表明:联合升降轨的时序InSAR技术可以有效识别管道沿线滑坡隐患,为油气管线的安全运营及今后油气管道选线提供重要的科学依据和参考。

关键词：中贵天然气管道天水市段时序合成孔径雷达干涉测量(InSAR) 滑坡隐患识别发育特征

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

氦气资源形成地质条件、成因机理与富集规律

引用

石油勘探与开发 2024年第2期51卷 436-452页

作者：陶士振杨怡青陈悦刘祥柏杨威李剑吴义平陶小晚高建荣陈燕燕王晓波吴晓智陈秀艳李谦贾进华中国石油勘探开发研究院北京100083

借鉴含油气系统思路及方法,基于典型富氦气田解剖,并利用地球化学成藏方法技术,研究天然气中氦气资源形成的地质条件、成因机理与富集规律。结果表明:①氦气“生-运-聚”机理与天然气有显著差异性,氦气主要为基底富U、Th元素缓慢α衰变... 详细信息

借鉴含油气系统思路及方法,基于典型富氦气田解剖,并利用地球化学成藏方法技术,研究天然气中氦气资源形成的地质条件、成因机理与富集规律。结果表明:①氦气“生-运-聚”机理与天然气有显著差异性,氦气主要为基底富U、Th元素缓慢α衰变或深部壳幔氦释放,沿岩石圈复合输导体系运移至天然气成藏系统,依附适宜载体气聚集成藏。②氦运移输导主要受“岩石圈断裂、基底断裂、沉积层断裂、有效输导层”复合输导体系控制,基于地下流体中“氦-气-水”相平衡及相-势耦合综合分析,提出氦气运聚过程中具有“水溶相、气溶相、游离相”3种主要赋存状态,存在氦气“集流、渗流、扩散”3种运移方式。③富氦气藏形成和氦气富集通常受控于“优质氦源、高效输导、适宜载体”3大主控要素,具有“脱溶汇聚、浮力驱动、压差驱替”3种聚集成藏动力类型,已发现富氦气藏具有相对“近氦源、邻断裂、低势区、高部位”的分布规律和成藏模式。④氦气富集区勘探和评价需要依托天然气兼探/并探,在评价落实氦气“源-运-聚”要素与天然气“生-储-盖”条件耦合匹配性、局部相对低势高部位有利圈闭载体气区的基础上,综合评价优选“通源连圈、低势高位、气氦适配”的有利氦气富集区。

关键词：氦气富氦气田地质特征形成条件成因机理富集规律

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sensitivity of seismic attenuation and dispersion to dynamic elastic interactions of connected fractures: Quasi-static finite element modeling study

引用

Petroleum Science 2023年第1期20卷 177-198页

作者： Yan-Xiao He Wen-Tao He Meng-Fan Zhang jia-Liang Zhang Wei-Hua liu Xiao-Yi Ma Gen-Yang Tang Shang-Xu Wang Guo-Fa Li Jun-Zhou liu Xiang-Long Song State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing100083China Sinopec Key Laboratory of Seismic Elastic Wave Technology Beijing100083China State Key Laboratory of Petroleum Resources and Prospecting CNPC Key Lab of Geophysical ExplorationChina University of Petroleum(Beijing)Beijing102249China CNOOC(China)Co. Ltd.Hainan BranchHaikouHainan570311China PetroChina Dagang Oilfield Tianjin300280China Sinopec Geophysical Research institute NanjingJiangsu211103China Sinopec Petroleum Exploration and Production Research institute Beijing100083China chinese Academy of geological {2. Beijing100037 China

Prediction of seismic attenuation and dispersion that are inherently sensitive to hydraulic and elastic properties of the medium of interest in the presence of mesoscopic fractures and pores,is of great interest in the characterization of fractured *** has been very difficult,however,considering that stress interactions between fractures and pores,related to their spatial distributions,tend to play a crucial role on affecting overall dynamic elastic properties that are largely *** thus choose to quantitatively investigate frequency-dependent P-wave characteristics in fractured porous rocks at the scale of a representative sample using a numerical scale-up procedure via performing finite element *** on 2.D numerical quasi-static experiments,effects of fracture and fluid properties on energy dissipation in response to wave-induced fluid flow at the mesoscopic scale are quantified via solving Biot's equations of *** show that numerical results are sensitive to some key characteristics of probed synthetic rocks containing unconnected and connected fractures,demonstrating that connectivity,aperture and inclination of fractures as well as fracture infills exhibit strong impacts on the two manifestations of WIFF mechanisms in the connected scenario,and on resulting total wave attenuation and phase ***,in turn,illustrates the importance of these two WIFF mechanisms in fractured rocks and thus,a deeper understanding of them may eventually allow for a better characterization of fracture systems using seismic ***,this presented work combines rock physics predictions with seismic numerical simulations in frequency domain to illustrate the sensitivity of seismic signatures on the monitoring of an idealized geologic CO_(2. sequestration in fractured *** simulation demonstrates that these two WIFF mechanisms can strongly modify seismic records and hence,indicating that incorporating the two energy dis

关键词： Attenuation and dispersion Rock physics Fractured media Frequency dependence Numerical study

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Height prediction of water flowing fractured zones based on BP artificial neural network

引用

Journal of Groundwater Science and Engineering 2019年第4期7卷 354-359页

作者： YANG liu WEN Xue-ru WU Xiao-li PEI Li-xin YUE Chen liu Bing GUO Si-{2. China University of Mining&Technology(beijing) Beijing 10083China institute of Hydrogeology and Environmental geology CAGSShijiazhuang 050061China beijing geological and Mineral Exploration and Development Corporation Beijing 10050China

Factures caused by deformation and destruction of bedrocks over coal seams can easily lead to water flooding(inrush)in mines,a threat to safety *** with high hydraulic conductivity are good watercourses as well as passages for inrush in mines and *** accurate height prediction of water flowing fractured zones is a key issue in today's mine water prevention and *** theory of leveraging BP artificial neural network in height prediction of water flowing fractured zones is analysed and applied in Qianjiaying Mine as an example in this *** the comparison with traditional calculation results,the BP artificial neural network better reflects the geological conditions of the research mine areas and produces more objective,accurate and reasonable results,which can be applied to predict the height of water flowing fractured zones.

关键词： Height of water flowing fractured zone BP artificial neutral network Comparative analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A unified model for the formation and distribution of both conventional and unconventional hydrocarbon reservoirs

引用

Geoscience Frontiers 2021年第2期12卷 695-711页

作者： Xiongqi Pang Chengzao jia Junqing Chen Maowen Li Wenyang Wang Qinhong Hu Yingchun Guo Zhangxin Chen Junwen Peng Keyu liu Keliu Wu State Key Laboratory of Petroleum Resources and Prospecting Beijing 102249China College of Geosciences China University of Petroleum-BeijingBeijing 102249China Exploration&Development Research institute China National Petroleum CorporationBeijing 100724China College of Science China University of Petroleum-BeijingBeijing 102249China State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China Chemical and Petroleum Engineering Schulich School of EngineeringUniversity of CalgaryCalgary T2N 1N4Canada The University of Texas at Arlington ArlingtonTX 76019USA Institue of Geomechanics China Academy of Geological ScienceBeijing 100081China Bureau of Economic geology University of Texas at AustinAustin TX 78713USA CSIRO Energy 26 Dick Perry AveKensingtonWA 6151Australia

The discovery and large-scale exploration of unconventional oil/gas resources since 1980s have been considered as the most important advancement in the history of petroleum geology;that has not only changed the balance of supply and demand in the global energy market,but also improved our understanding of the formation mechanisms and distribution characteristics of oil/gas ***,what is the difference of conventional and unconventional resources and why they always related to each other in petroliferous basins is not *** the differences and correlations between unconventional and conventional resources are complex challenging issues and very critical for resources assessment and hydrocarbon exploration,this paper focused on studying the relationship of formations and distributions among different oil/gas *** results of 12.2.7 exploratory wells in 6 representative petroliferous basins of China and distribution characteristics for 52.92. oil/gas accumulations over the world were applied to clarify the formation conditions and genetic relations of different oil/gas reservoirs in a petroliferous basin,and then to establish a unified model to address the differences and correlations of conventional and unconventional *** this model,conventional reservoirs formed in free hydrocarbon dynamic field with high porosity and permeability located above the boundary of hydrocarbon buoyancy-driven accumulation depth *** tight reservoirs formed in confined hydrocarbon dynamic field with low porosity and permeability located between hydrocarbon buoyancy-driven accumulation depth limit and hydrocarbon accumulation depth *** oil/gas reservoirs formed in the bound hydrocarbon dynamic field with low porosity and ultra-low permeability within the source rock *** than 75%of proved reserves around the world are discovered in the free hydrocarbon dynamic field,which is estimated to contain only 10%of originally gen

关键词： Fossil fuels Hydrocarbon resources Unified model of reservoirs formation Hydrocarbon reservoirs Hydrocarbon accumulation Hydrocarbon dynamic field

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A three-dimensional matching localization algorithm based on helix triangular pyramid array

引用

Journal of Central South University 2021年第3期28卷 816-833页

作者： ZHAO Jiu-bin liu Yuan-xue liu Chang-{2. LING Yue Chongqing Key Laboratory of Geomechanics&Geoenvironmental Protection Department of Military InstallationsArmy Logistics University of PLAChongqing 401311China beijing institute of Special Electromechanical Technology Beijing 100020China

On the eve of the occurrence of geological hazards,part of the rock and soil body begins to burst,rub,and fracture,generating infrasound signals propagating outward.3D advanced positioning of the landslide has remained unsolved,which is important for disaster *** the Fourier transform and Hankel transform of the wave equation in cylindrical coordinates,this work established a three-dimensional axisymmetric sound field model based on normal waves,and designed a 4-element helix triangular pyramid array with vertical and horizontal sampling *** on this,the three-dimensional matching localization algorithm of infrasound for geological hazards is *** the algorithm to the infrasound signal localization of rock and soil layers,it was found that the helix triangular pyramid array can achieve accurate estimation of depth and distance with a smaller number of array elements than the traditional array,and may overcome the azimuth symmetry *** study shows the application prospects of this method for predicting geohazards position several hours in advance.

关键词： geologic hazards infrasound helix triangular pyramid array 3D matchinglocalization algorithm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Rock thin-section analysis and identification based on artificial intelligent technique

引用

Petroleum Science 2022年第4期19卷 1605-1621页

作者： He liua Yi-Li Ren Xin Li Yan-Xu Hu jian-Ping Wu Bin Li Lu Luo Zhi Tao Xi liu jia Liang Yun-Ying Zhang Xiao-Yu An Wen-Kai Fang PetroChina Research institute of Petroleum Exploration&Development Beijing100083China Research institute of Petroleum Exploration and Development PetroChina Huabei Oilfield CompanyHebei Renqiu062552China

Rock thin-section identification is an indispensable geological exploration tool for understanding and recognizing the composition of the *** is also an important evaluation method for oil and gas exploration and *** can be used to identify the petrological characteristics of reservoirs,determine the type of diagenesis,and distinguish the characteristics of reservoir space and pore *** is necessary to understand the physical properties and sedimentary environment of the reservoir,obtain the relevant parameters of the reservoir,formulate the oil and gas development plan,and reserve *** traditional thin-section identification method has a history of more than one hundred years,which mainly depends on the geological experts'visual observation with the optical microscope,and is bothered by the problems of strong subjectivity,high dependence on experience,heavy workload,long identification cycle,and incapability to achieve complete and accurate *** this paper,the models of particle segmentation,mineralogy identification,and pore type intelligent identification are constructed by using deep learning,computer vision,and other technologies,and the intelligent thinsection identification is *** paper overcomes the problem of multi-target recognition in the image sequence,constructs a fine-grained classification network under the multi-mode and multi-light source,and proposes a modeling scheme of data annotation while building models,forming a scientific,quantitative and efficient slice identification *** experimental results and practical application results show that the thin-section intelligent identification technology proposed in this paper does not only greatly improves the identification efficiency,but also realizes the intuitive,accurate and quantitative identification results,which is a subversive innovation and change to the traditional thin-section identification practice.

关键词： Thin-section identification Artificial intelligence Deep learning Computer vision Sedimentary reservoir

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：