黑龙江省东部残留盆地群构造演化特征及其油气勘探意义   总被引：15，自引：3，他引：15  

曹成润  郑庆道 《吉林大学学报(地球科学版)》2003,33(2):167-172

由牡丹江断裂、敦-密断裂、依-舒断裂和大和镇断裂所控制的中新生代盆地群是东北地区重要的合煤、含油气盆地。该盆地群的中新生代成盆过程以脆性伸展为主，发育断陷或裂陷层序，而坳陷层序(热沉降层序)不发育。古构造发育史、盆地沉降史和伸展史研究表明，研究区盆地群普遍经历了早期快速沉降(断陷期)-盆地衰减、抬升剥蚀-后期快速沉降-稳定衰减(或抬升剥蚀)。区内的成盆与构造演化过程分为涉及全区的中生代陆缘断陷期(J3-K1)、第一构造反转期(K2-E1)、新生代陆内裂陷期(E2-E3)和第二构造反转期(N)4个阶段，反映了两大盆地构造演化旋回。构造演化特征一方面为油气的多期成藏提供了盆地动力学条件，另一方面改造或破坏动、静态地质要素的时空分布及其匹配关系。  相似文献   

GIS空间过程建模系统初探   总被引：4，自引：1，他引：4  

何勇  边馥苓  季英 《测绘信息与工程》2003,28(5):22-24

阐述了GIS空间过程和空间过程建模的概念，提出了空间过程建模系统的概念框架，分析了其功能需求和主要的支撑技术。  相似文献   

地图数字化数据处理的相关平差与精度分析   总被引：1，自引：0，他引：1  

余晓红 《武汉大学学报(信息科学版)》2003,28(5):555-558

根据地图数字化坐标转换方法、转换所得地面坐标平差方法 ,得到数字化数据处理的几种方案 ,对不同方案的计算结果进行比较 ,讨论了相关性对平差结果的影响 ,并对数字化数据的精度评定进行了分析  相似文献   

基于GIS和SD方法的社会经济发展与生态环境响应动态模拟预测研究   总被引：9，自引：0，他引：9  

余洁  边馥苓  胡炳清 《武汉大学学报(信息科学版)》2003,28(1):18-24

在着重于空间现象分析处理的GIS与动态模拟的SD方法结合的模式下，动态模拟预测了不同社会经济发展策略对生态环境的影响，揭示了生态经济系统社会经济发展与生态环境相互影响关系，为区域可持续发展提供决策支持服务。  相似文献   

两等级网不使用导数的联合非线性最小二乘估计     

唐为峰  李桂苓 《测绘工程》2003,12(4):12-15

针对不同等级测量控制网的联合平差，介绍一种不使用导数的解析方法，该方法一方面克服了传统平差中由于起算数据误差对低级网的精度影响，而使加密的精度逐次降低的缺点；另一方面，完全避免了导数的计算，大大减少了计算工作量。  相似文献   

GPS RTK测量技术的应用与体会   总被引：17，自引：0，他引：17  

王毅明  钟金宁  黄志洲 《现代测绘》2003,26(2):28-29

GPS RTK测量技术以快捷、精准的特点广泛地被测量人员所接受，但是在到量中仍存在一些问题需要研究。本文介绍了几种经常遇到的棘手问题及其解决方法。  相似文献   

Formation of Concentric Rings Around Sources     

B. P. Harlamov 《Mathematical Geology》2003,35(4):431-449

Zones of increased concentration formed by a solvent flowing from a source are considered. A matehmatical model for forming such zones is proposed. It takes into account that such a zone is composed of a set of independent particles. Hence the distribution of a substance around the source can be explained by movement of an individual particle. In the model this movement is a continuous semi-Markov process with terminal stopping at some random point in space. Parameters of the process depend on the velocity field of the flow. Forward and backward partial differential equations for the distribution density of a random stopping point of the process are derived. The forward equation is investigated for the centrally symmetric case. Solutions of the equation demonstrate either a maximum or a local minimum at the source location. In the latter case a concentric ring around the source is formed. If different substances vary in their absorption rates, they can form separable concentration zones as a family of concentric rings.  相似文献   

Process of Housing Damage Assessment: The 1995 Hanshin-Awaji Earthquake Disaster Case     

Horie  Kei  Maki  Norio  Kohiyama  Masayuki  Lu  Hengjian  Tanaka  Satoshi  Hashitera  Shin  Shigekawa  Kishie  Hayashi  Haruo 《Natural Hazards》2003,29(3):341-370

Rebuilding of victims' livelihoods was a crucial issue in the restoration process in the1995 Hanshin-Awaji Earthquake Disaster. Housing damage assessment influencedmost of the rebuilding of the livelihood in the long term, because the Victim Certificatesissued by the local governments based on the results of the Housing damage assessmentwas required to receive most of the individual assistance measures. In the process ofHousing damage assessment, many complex problems arose, leading to extensivework on the part of the disaster responders. Consequently, a considerable number ofvictims were dissatisfied with the assessment and applied for a resurvey. Due to a floodof requests for resurvey, disaster responders had to work on damage assessment, leavingrelief activities aside.In order to facilitate Housing damage assessment, this paper discusses thefollowing five points: (1) the processes and the problems of assessments performedin the Hanshin-Awaji Earthquake Disaster, (2) the changes in the nature of informationneeded by the victims, (3) the improvements over the present damage assessment, (4)the housing situation in Japan, and (5) the international situation on damage assessment.It is obvious from the results that a poor damage assessment system and the size ofthe disaster produced a very large work load. Differences in appreciation among theinvestigators also contributed to unfair assessments and led to the victims beingincreasingly dissatisfied by the survey results. Finally, a design concept for acomprehensive damage assessment system, which has been derived from theabove five points, is proposed for post-disaster management.  相似文献   

中尺度模式中各种湿物理过程的数值模拟   总被引：14，自引：1，他引：14  

康丽莉  雷恒池  肖稳安 《南京气象学院学报》2003,26(1):76-83

利用PSU／NCAR的MM5对1999年6月下旬发生在江淮流域的梅雨锋暴雨进行数值模拟试验，研究MM5中不同湿物理过程中对MM5模拟梅雨锋暴雨的影响。试验结果显示：中尺度模式MM5能一定程度再现一些观测的中尺度特征，对流参数化方案对网格格距的大小比较敏感；显式云物理方案考虑冰相后可明显改善模式对暴雨的模拟能力，尤其是采用Reisner包含霰的混合相双变参数谱方案的双重嵌套网格对降水量的模拟取得较好的效果。  相似文献   

一致凸Banach空间中渐近非扩张映射的收敛定理     

柏传志 《南京气象学院学报》2003,26(2):281-284

在一致凸Banach(巴拿赫)空间中研究了渐近非扩张映射的带误差的Ishikawa迭代序列的收敛性。结果推广了原来的定理。  相似文献