中国地震局2002年度科技外事工作会议在宜昌召开

中国地震局 2 0 0 2年度科技外事工作会议于 3月 2 3～ 2 5日在湖北省宜昌市召开 ,来自全国各省、自治区、直辖市地震局、中国地震局直属单位和局机关有关司室的 76名代表参加了会议。刘玉辰副局长出席了会议并作了重要讲话 ,科技发展 (国际合作 )司朱世龙司长作了年度工作报告 ,外交部美大司马占武同志专程到宜昌向与会代表作了报告 ,科技发展司贺钦副司长、港澳台办公室黄建发主任分别主持了会议。会议全面总结了 2 0 0 1年中国地震局开展地震科技外事工作取得的成果 ,对 2 0 0 2年工作进行了研讨与部署。会议表彰了从事地震科技外事工作 …     

第六届中国地震学会地震科技情报专业委员会成立大会暨研讨会会议纪要

第六届中国地震学会地震科技情报专业委员会成立大会暨研讨会于 2 0 0 3年 1 1月 1 6～ 2 4日在海南省海口市召开。此次会议的主题是 :“十五”期间地震科技信息工作的发展方向和任务 ;网络环境下如何有效地拓展地震科技信息的服务功能和领域及地震科技信息资源共享等。出席此次会议的有第六届中国地震学会地震科技情报专业委员会主任、中国地震局地震信息中心刘志远主任、第六届中国地震学会地震科技情报专业委员会副主任、北京市地震局杜甫来副局长、第六届中国地震学会地震科技情报专业委员会秘书、中国地震局地震信息中心网络部王宜主任…     

全国地震科技期刊编辑学术交流研讨会在扬州召开

全国地震科技期刊编辑学术交流研讨会于 2 0 0 1年 4月 9～ 1 2日在江苏省扬州市召开。来自全国地震系统的 1 5个编辑部的代表参加了会议。地震数据信息中心主任刘志远、中国地震局科技发展 (国际合作 )司巡视员王洪珍、江苏省地震局杨军副局长、地震数据信息中心卢振恒研究员等领导和专家出席会议并讲话。本次会议是由《地震工程与工程振动》、《世界地震译丛》等编辑部联合发起、江苏地震局《地震学刊》编辑部承办。本次会议研讨的主题是 :①知识经济与科技期刊发展 ;②地震科技期刊资源的开发、利用和保护 ;③编辑学者化 ;④科技期刊与市…     

中国地震学会地震科技管理研究委员会成立大会暨第一次研讨会议

中国地震学会科技管理研究委员会成立大会暨第一次研讨会议于 2 0 0 3年 1 0月 1 8～ 2 1日在江西省南昌市召开。新一届委员及特约代表共 2 8人参加了会议。会议首先由杜振民同志介绍了本届地震科技管理研究委员会成员的产生过程 ,酝酿并确定主任、副主任。会议着重讨论了委员会活动方式、未来发展的方向、任务等问题。多位委员就防震减灾事业发展所面临的形势、地震科技管理过程中所取得的经验和教训等问题进行了坦诚的交流 ,并根据中国地震局发展与财务司的建议 ,就“十一·五”及更长一段时间内中国防震减灾事业重大项目构想提出了积极的…     

中国地震局主办第一届发展中国家地震灾害与减轻国际培训班

在科学技术部国际合作司、中国地震局科技发展 (国际合作 )司和人事教育司共同资助下 ,由中国地震局科技发展 (国际合作 )司主办 ,中国地震局地球物理研究所和分析预报中心联合承办的“第一届发展中国家地震灾害与减轻国际培训班”于 2 0 0 2年 1 0月 6～ 2 0日在北京举办。本次培训班是科学技术部国际合作司“2 0 0 2年发展中国家技术培训班”系列的重要项目之一。举办此类培训班是根据我国的外交政策 ,实施“走出去”的战略方针 ,适应“科教兴国”、“可持续发展”战略的需要 ,目的在于促进我国对外科技合作与交流 ,宣传和展示我国科技发…     

中国-东盟地震预报技术研讨会概况

为进一步加强我国与东盟各国在地震学领域的相互了解与合作 ,经中国 东盟合作基金委员会批准 ,“中国 东盟地震预报技术研讨会”于 2 0 0 2年 1 2月 8～ 1 3日在上海举行。来自东盟 9个国家 (泰国、马来西亚、印度尼西亚、缅甸、老挝、柬埔寨、越南、新加坡及菲律宾 )和东盟秘书处的 1 8位代表及中国地震局的 1 8位代表参加了会议。中国与东盟方的地震科技合作一直得到了外交部和科技部的大力支持。去年 ,双方在北京举行了中国 东盟地震研讨会。会上 ,东盟各国和中国的代表们介绍了本国在地震科技领域取得的成就 ,探讨了存在的问题 ,表达了…     

“地震工程学新进展与新挑战国际学术讨论会”在哈尔滨召开

“地震工程学新进展与新挑战国际学术讨论会”于 2 0 0 2年 8月 15日至 17日在哈尔滨召开。中国地震局宋瑞祥局长、刘玉辰副局长、黑龙江省马淑洁副省长出席了会议 ,并在会上发表了重要讲话。本次讨论会是近十年来由中国地震局主办的规模最大的国际会议 ,会议得到了科技部、建设部、国家自然科学基金会、美国国家科学基金会及亚太地区地震工程研究中心联合会的支持和资助。这次会议的召开 ,对推动我国地震工程学的发展、扩大我国地震工程学界与国际同行的友谊与合作具有重要意义。　　本届国际讨论会受到国际地震工程学界的高度重视 ,参加会…     

中国地震学会地震科技管理专业委员会“防震减灾事业改革发展理论与实践政策研讨会”会议纪要

2014年8月28～29日,中国地震学会地震科技管理专业委员会“防震减灾事业改革发展理论与实践政策研讨会”在甘肃兰州召开。来自中国地震局机关、直属单位、各省市地震局及地方地震局等20多个单位的33名代表参加了本次会议。 会议由中国地震学会地震科技管理专业委员会吴荣辉主任委员主持。甘肃省地震局局长王兰民在会上致辞,并祝会议圆满成功。中国地震局政策法规司李克司长代表政策法规司对本次会议的召开表示祝贺,并强调了本次会议的研讨成果对中国地震局党组决策咨询工作的重要意义。中国地震局政策法规司李健副司长组织大家学习了陈建民局长在中央国家机关工委刊物《紫光阁》杂志2014年第8期上发表的理论文章《没有新思路,就没有新发展》,并介绍了研究确定《2014-2016年防震减灾重大方向与重点任务》的目的意义、实施安排和总体要求。     

中国地震局水库地震代表团访问比利时和意大利

由中国地震局副局长刘玉辰率领的水库地震代表团一行 5人于 2 0 0 0年 9月 1 4～ 2 9日访问了比利时和意大利。这次出访的目的是推进中比地震科技合作 ,建立中意政府间的地震科技合作并签署合作框架协议 ,了解和借鉴意大利在水库地震研究和监测方面的主要成果、先进技术和经验。代表团重点访问了比利时皇家天文台、意大利地震调查所、意大利的里雅斯特大学 ,顺访了 Abdus Salam国际理论物理中心。1　访比利时皇家天文台皇家天文台负责比利时的地震监测工作 ,与中国地震局有着多年良好的合作关系。PaulPaquet台长向代表团介绍了皇家天文台…     

2005年中国地震局科学技术委员会活动综述

1召开中国地震局科技委六届二次全体会议,研讨“十一五”地震科技发展战略和规划编制问题2005年5月18日,中国地震局第六届科技委召开了第二次全体会议。研讨“十一五”地震科技发展战略和规划编制问题。中国地震局局长陈建民、副局长刘玉辰出席会议并作讲话。中国地震局科技委委员和局机关有关司室领导约50余人参加会议。会议由科技委主任陈颙院士和副主任邓起东院士主持。会上,中国地震局地球物理研究所所长吴忠良研究员、地质研究所副所长徐锡伟研究员、地壳应力研究所所长唐荣余研究员、地震预测研究所所长任金卫研究员、局工程力学研究…     

Changes in sediment transport in the Kuye River in the Loess Plateau in China

In this paper, the changes in sediment transport over 51 years from 1955 to 2006 in the Kuye River in the Loess Plateau in China are assessed. Key factors affecting sediment yield and sediment transport, such as precipitation depth, discharge, and human activities are studied. To investigate the changes in sediment yield in this watershed, a trend analysis on sediment concentration, precipitation depth, and discharge is conducted. Precipitation depths at 2 Climate Stations （CSs）, as well as discharge and sediment transport at 3 Gauging Stations （GSs） are used to assess the features of sediment transport in the Kuye River. The rtmoff modulus （defined as the annual average discharge per unit area, L/（s·km^2）） and the sediment transport modulus （defined as the annual suspended sediment transport per unit area, t/（yr km^2）） are introduced in this study to assess the changes in runoff and sediment yield for this watershed. The results show that the highest average monthly discharge during the study period in the Kuye River is 66.23 m^3/s in August with an average monthly sediment concentration of 88.9 kg/m^3. However, the highest average monthly sediment concentration during the study period in the Kuye River is 125.34 kg/m^3 and occurs in July, which has an average discharge of 42.6 m^3/s that is much less than the average monthly discharge in August. It is found that both the runoff modulus and sediment transport modulus at Wenjiachuan GS on the Kuye River has a clear downward trend. During the summer season from July to August, the sediment transport modulus at Wenjiachuan GS is much higher than those at Toudaoguai and Longmen GSs on the Yellow River. The easily erodible loess in the Kuye River watershed and the sparse vegetation are responsible for the extremely high sediment yield from the Kuye River watershed. The analyses of the grain size distribution of suspended load in the Kuye River are presented. The average monthly median grain size of suspended load in the Kuye River is largest in February and then decreases until June. In July, the average monthly median grain size of suspended load approaches another peak and decreases until September. Then, the median grain size of suspended load starts to increase until February of the following year. However, the average monthly median grain size of suspended load in the Yellow River at Toudaoguai and Longmen GSs is the smallest between early summer and late fall The median grain size in the Yellow River starts to increase in November and approaches the largest size in January.     

TritiogenicHe in groundwater in Takaoka

³He/⁴He ratios up to 3.5 times the ratio of atmospheric He were found in groundwater samples. The³He enrichment can be attributed to radiogenic³He produced by in-situ beta-decay of³H. This shows that tritiogenic³He is accumulating in confined waters. From tritiogenic³He and³H concentrations, ages of groundwaters can be calculated. Detection of tritiogenic³He gives a tool to trace a tritium contamination which occurred in the past and cannot be assessed only by the³H counting method.     

Variations in trace gas concentrations in different environments in India

Observations of trace gases (SO₂, NH₃, NO₂ and O₃) were made during the period 1981 to 1984 at 6 different locations representative of urban industrial, urban, nonurban, thermal power plant and marine environment. Diurnal variations of the trace gases were studied in an urban environment. Except in the urban industrial environment, the concentration of NH₃ was found in the range of background values. Also, the average concentrations of NO₂ and O₃ at the different environments were in the order of background values. However, the concentrations of SO₂ were substantially higher by about 7 times, in urban industrial and thermal power plant environments. The diurnal variations of SO₂, NH₃ and NO₂ showed anitphase relationship with surface temperature at the urban environment station which is relatively free of industrial pollution. Discussion is centred on trace gas variations in different environments in India together with the values reported for various countries in the world.     

Projected changes in flood indices in selected catchments in Poland in the 21st century

The aim of this study is to estimate likely changes in flood indices under a future climate and to assess the uncertainty in these estimates for selected catchments in Poland. Precipitation and temperature time series from climate simulations from the EURO-CORDEX initiative for the periods 1971–2000, 2021–2050 and 2071–2100 following the RCP4.5 and RCP8.5 emission scenarios have been used to produce hydrological simulations based on the HBV hydrological model. As the climate model outputs for Poland are highly biased, post processing in the form of bias correction was first performed so that the climate time series could be applied in hydrological simulations at a catchment-scale. The results indicate that bias correction significantly improves flow simulations and estimated flood indices based on comparisons with simulations from observed climate data for the control period. The estimated changes in the mean annual flood and in flood quantiles under a future climate indicate a large spread in the estimates both within and between the catchments. An ANOVA analysis was used to assess the relative contributions of the 2 emission scenarios, the 7 climate models and the 4 bias correction methods to the total spread in the projected changes in extreme river flow indices for each catchment. The analysis indicates that the differences between climate models generally make the largest contribution to the spread in the ensemble of the three factors considered. The results for bias corrected data show small differences between the four bias correction methods considered, and, in contrast with the results for uncorrected simulations, project increases in flood indices for most catchments under a future climate.     

Copper in natural waters in Transbaikalia

Cu concentrations in surface (river and lake) and subsurface waters are determined. The geographic pattern of Cu distribution in natural water is identified. This pattern is controlled by the difference between its concentrations in drained rocks and soils and the geochemical redox conditions of its migration. Territories with low, medium, and elevated Cu concentrations in natural waters are identified. The concentrations of Cu in natural waters of the region are found to be generally lower than the Clarke values.     

Changes in thermal extremes in Poland

Changes in thermal extremes of the climate of Poland in 1951–2010 are examined. Warm extremes have become more frequent, while cold extremes have become less frequent. In the warming climate of Poland, the increase in the number of extremely warm days in a year and the decrease in the number of extremely cold days in a year have been observed. Also the increase of the maximum number of consecutive hot days in a year and the decrease of the maximum number of consecutive very cold and extremely cold days in a year have been observed. However, the trends are not of ubiquitous statistic significance, as the natural variability is strong.     

Hydrological changes in the Ganges system in Bangladesh in the post-Farakka period

Abstract

The basin area of the Ganges River in Bangladesh is extremely dependent on a regular water supply from upstream to meet requirements for agriculture, fisheries, navigation, salinity control, and domestic and industrial sectors. In 1975, India commissioned a barrage on the Ganges River at Farakka to divert a significant portion of the dry season flow in order to make the Calcutta Port navigable. Statistical analyses of discharge and water level data have been carried out to determine if significant changes have occurred in the hydrology of the Ganges system in Bangladesh in the post-Farakka period. Siltation of the Gorai River (an offtake of the Ganges River) has also been examined using the stage-discharge relationship and regression analysis. The analyses show that the diversion has caused considerable hydrological changes in the Ganges system in Bangladesh. The water supply in the dry season has been reduced substantially, while siltation of the Gorai River has increased significantly.