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1.
福建省洪水预警报及闽江水库群联合调度系统   总被引:2,自引:0,他引:2  
吴金塔 《水文》2003,23(1):41-45
介绍了福建省洪水预警报系统通信、计算机网络、信息传输等关键技术和建设情况,以及闽江流域水库群调度软件系统的关键技术和功能。  相似文献   

2.
黄山市洪水预报预警系统   总被引:2,自引:0,他引:2  
胡余忠  程其文  方炳烈 《水文》2000,20(2):45-48
介绍了黄山市洪水预报预警系统的结构、各个子系统的功能、作用及特点。该系统在1997~1999年洪水期间,做支了预报准确、舆及时,为防汛抢险提供了科学的决策依据,取得了较好的社会效益和经济效益,为中小城市的洪水预报预警系统建设提供了较好的思路。  相似文献   

3.
以长江中下游防洪系统为对象,概述了在大型复杂防洪系统水沙运动数值模拟基础上,成功地将面向长江中下游防洪规划论证需求的水沙数学模型转化为面向长江防洪系统防汛方案评估需求的长江中下游实时洪水预报数学模型.为适应实时预报调度快速、准确评估的要求,提出了基于水动力学的循环滚动计算模式和实时校正模式.实现了水文学实时校正方法与水动力学数学模型的耦合,建立了基于水动力学的实时校正模式和分洪溃口洪水预报模式.通过长江中下游防汛期间的试运行,较好地解决了洪水预报误差校正和分洪溃口后洪水预报等关键难题,为防汛方案的制定和实时洪水调度方案优化提供了技术支撑,主要成果已应用于长江中下游防汛调度方案中.  相似文献   

4.
中央防汛信息系统   总被引:3,自引:0,他引:3  
辛立勤 《水文》1998,(1):63-64,13
中央防汛信息系统辛立勤吴礼福(水利部水利信息中心)1前言中央防汛信息系统建设,经过多年的努力已初具规模,取得了可喜的成果。该系统的建设与应用对及时准确地了解和掌握全国七大江河的水情、雨情信息及工情信息,为及时做出洪水预报,辅助调度指挥决策提供了现代化...  相似文献   

5.
《地下水》2017,(2)
我国地域广阔,河流众多,历史上"三年一大灾,两年一小灾"是我国洪水灾害的特点之一。通过对防洪预警建设必要性分析,对防洪预警系统组成中的防汛信息采集系统、数据存储与管理系统、防洪综合信息服务系统、防洪预报预警系统和防洪决策支持系统进行论述说明,并对防洪预警系统建设前景进行阐述讨论,提升防汛会商能力,提高防汛抗旱调度指挥决策的科学性、主动性、及时性,正确地对防汛形势做出分析,对发展趋势做出预测、预报,可以为河流规划及流域经济发展提供优质服务。  相似文献   

6.
在深入了解北斗卫星通信功能流程及特点的基础上,充分发挥北斗卫星传输技术的优势,研发了基于北斗卫星的地质环境监测信息采集器,开发了由野外地质环境监测数据采集层、北斗通信系统、信息管理平台三部分组成的信息传输系统。通过典型地面沉降区、矿山形变区的示范应用情况,深入分析了基于北斗卫星的地质环境监测信息实时传输技术的应用条件和特点。  相似文献   

7.
刘云 《水文》1996,(3):42-46
集群移动通信技术在防汛调度中的应用刘云(水利部水利信息中心)1概述中国是一个洪水灾害频繁的国家,特别是暴雨所产生的突发性洪水给人民生命财产带来了严重损失。近年来,为配合已修建的水利工程防洪工作,建设了大量的防汛通信系统,大大减低了洪水的危害。集群移动...  相似文献   

8.
《地下水》2015,(6)
水库防汛事关灌区和下游人民群众生命和财产安全。但是朱隈水库存在着输水洞设备设施老化陈旧需更换,第一输水洞洞身漏水;溢洪道无检修闸门,主坝下游右侧排水体局部塌陷。流域内无水雨情自动监测系统,水库大坝没有自动化安全监测系统,洪水预报未有权威部门专门设计,预报手段相对滞后等诸多问题亟待解决。文章通过对朱隈水库工程状况、运行情况进行客观分析,并就科学制定水库度汛方式、预报方案、洪水调度和防汛预案进行探索,为水库安全度汛提供借鉴。  相似文献   

9.
曹述互 《水文》1989,(5):59-60
为了在黄河发生洪水时,使国家防汛指挥部门和黄河水利委员会能在百里千里之外观察到洪水的现场情况,迅速地了解洪水水位及其变化,及时掌握洪水的淹没范围和造成的损失,为防汛救灾指挥决策提供科学依据,在国家科委的统一组织和领导下,经多个单位的共同努力,综合应用遥感、通信和地理信息系统的技术方法,试验成功了实时监测黄河洪水险情与  相似文献   

10.
许克华  刘永华 《水文》1996,(2):38-39
湖南省防汛水文信息服务系统许克华,刘永华,叶泽纲,陈欣,付忠,邓柯(湖南省水文水资源勘测局)1前言“湖南省防汛水文信息服务系统”似下简称“系统”),是一项非工程措施防汛减灾系统,在1991—1993年的三年中湖南发生特大洪水期间,该系统及时提供大屏幕...  相似文献   

11.
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.  相似文献   

12.
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.  相似文献   

13.
Robert L. Linnen   《Lithos》2005,80(1-4):267-280
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.  相似文献   

14.
15.
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003).  相似文献   

16.
正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.)  相似文献   

17.
正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology,  相似文献   

18.
正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.)  相似文献   

19.
正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se-  相似文献   

20.
正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with  相似文献   

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