国际标准海图的解析与三维显示研究

在．NET环境下,利用C#语言,研究并从底层实现了符合S-57规范的国际标准海图的解析,并将解析出的海图数据与遥感影像,DEM数据进行三维叠加显示,增强了海图显示的真实性,对于海图的应用与发展有一定的意义。     

放射性碳测年国际比对活动的初步结果

中国科学院地球环境研究所^14C实验室作为中国唯一的代表参加了第四届放射性碳测年国际比对活动(FIRI），取得了比较优异的成绩。初步分析了本届比对活动的测年结果，得出如下结论：不同的^14C测年方法对测年结果无明显的影响，不同现代碳标准的选择对大部分样品的测年结果有较明显的影响，而采用不同的本底物质仅对老年龄样品的定年有显著影响；加速器质诺测年法在各种^14C测年方法中最准确、精度最高，正逐渐成为国际^14C测年方法的主流。     

地理世情监测标准建设初探

探讨地理世情监测标准规范建设的需求与意义,归纳梳理国内外相关标准规范建设的现状,分析目前我国地理世情监测标准规范建设存在的不足,提出相关建议,以推动地理世情监测工作的开展。     

SOME ASPECTS OF EXPORT LABOUR SERVICE IN CHINA

ＳＯＭＥＡＳＰＥＣＴＳＯＦＥＸＰＯＲＴＬＡＢＯＵＲＳＥＲＶＩＣＥＩＮＣＨＩＮＡ阎小培ＳＯＭＥＡＳＰＥＣＴＳＯＦＥＸＰＯＲＴＬＡＢＯＵＲＳＥＲＶＩＣＥＩＮＣＨＩＮＡ￥ＹａｎＸｉａｏｐｅｉ（ＣｅｎｔｒｅｆｏｒＵｒｂａｎ＆ＲｅｇｉｏｎａｌＳｔｕｄｉｅｓ，Ｚ...     

科技管理兼盈——纪念程裕淇院士诞辰110周年

程裕淇院士是我国著名的变质岩石学家、矿床学家和前寒武纪地质学家。中国科学院学部委员(院士)，中国人民政治协商会议第四届、第五届全国委员会委员，第六届、第七届全国政协常务委员会委员。程裕淇先生开拓了我国变质岩研究领域，提出了矿床成矿系列理论，发展了我国前寒武纪地质学。他在管理上积极推进地质行业的对外开放，促进国际合作交流，为建立中央直属的野战军队伍建言献策；在政协多次提案，推动了我国矿产资源法的立法和实施。     

鸭绿江流域水沙输运的“源-汇”特征及其影响因素的集成分析

以鸭绿江流域为尺度,对鸭绿江流域上中下游水沙数据进行综合性分析。结果显示：鸭绿江流域径流量中游比上游年径流量增加一倍左右,下游比上游的年径流量增加倍数为一个数量级以上;大部分年份下游的年输沙量小于上游;随着中下游水利工程等人类活动的加剧,鸭绿江下游径流量和输沙量都有阶段性的减少,年际径流量和年际输沙量差异幅度逐渐增大,且输沙量减小的幅度和年际差异幅度比径流量更大,尤其是自20世纪60年代中期以来人类活动对输沙量影响比较显著。结合ENSO事件特征,指出气候变化引起的降雨量的减少是直接影响流域径流量减少的主要原因,也一定程度上造成了流域输沙量的减少。     

地磁测量参考场计算软件的设计与实现

以IGRF全球地磁位模型为基础,设计地磁测量参考场计算软件,实现地磁场参数长波分量的时间域与空间域离散点计算,为野外磁力测量相关数据采集与仪器配置提供先验信息,使数据采集的作业效率及可靠性大大提高。     

The key indicators of transboundary water apportionment based on international laws and cases

Transboundary water, more competitive utilization and uncertain availability under the globalization trend, the issue of its apportionment which directly impacts national benefits of each riparian state is becoming one of the important topics in the world. Water is scarce in China, the most important upstream state in Asia, and this task has to be thought over in the coming future. Based on ＂International Freshwater Treaties Database＂ （1820-2007） by Oregon State University, and publications and reports on transboundary water utilization and management since 1999, 28 indicators of water apportionment adopted in 49 international treaties and cases in 1864-2002 are divided into 6 types, the spatial and temporal characteristics of the adopted indicators are analyzed in order to find the key indicator（s） of transboundary water apportionment. The major results include： the major adopted indicators, have significant differences among 5 regions/continents, the indicators at rank first and second place in the developed region （North America and Europe） according to the adopted times are ＂keeping minimum water flow＂ and ＂mean annual runoff＂, but in the developing region （Asia, Africa and South America）, the ranking order of the above two indicators is reversed; the major adopted indicators in the watersheds with insufficient water are ＂mean annual runoff＂ and ＂keeping minimum water flow＂, the ones in the watersheds with sufficient water are ＂keeping minimum water flow＂ and ＂maximum water intake＂; the international treaties signed from the first phase to the fourth phase, the developing process shows a progress of ＂fewer-increasing a lot-decreasing rapidly-equation basically＂, the regional distribution of the treaties shifts mainly from the developed region to the developing one, especially to Asia and Africa; the major adopted indicators shifts from ＂keeping minimum water flow＂ and ＂mean annual runoff＂ in 1864-1945, to ＂keeping minimum water flow＂ and ＂maximum water intake＂ in 1946-1971, then to ＂hydraulic facility operation＂ and ＂mean annual runoff＂ in 1972-1991, and finally to ＂keeping minimum water flow＂ and ＂mean annual runoff＂ in 1992-2002, the process shows similar a loop. Finally, the key indicator on transboundary water apportionment can be determined as ＂keeping minimum water flow＂.     

基于社会感知计算的游客时空行为研究

在情景感知、大数据、移动互联网和物联网发展的大背景下,迎合社会感知计算发展的趋势,探讨旅游社会感知计算内涵及其应用。在分析了现实地理世界、游客行为研究和社会感知计算之间关系的基础上,探讨旅游管理、传感器、游客活动和推理机的相互作用,构建了四位一体的游客行为社会感知计算概念模型。同时以西安国内游客为例,在新浪微博数据的支持和旅游社会感知计算框架下,探讨西安国内游客的时空共现和旅游流空间转移,探明了游客之间的相互关系和旅游空间行为及旅游流空间网络特征,为游客行为研究提供了思路和借鉴。同时在目前社会感知计算研究进展的基础上,展望了旅游社会感知计算未来的发展方向。     

London and Frankfurt in Europe's evolving financial centre network

The launch of the Euro and the location of the European Central Bank in Frankfurt initially was seen as a threat to London's pre-eminent position in European financial geographies. This paper explains why in fact this was not the case. To do this, the paper is divided in two. Firstly, it reviews the literatures that help to explain financial geographies. It is argued that we need to move away from investigating attribute properties such as financial turnover and instead examine the role of networks and interdependencies in producing financial geographies. Secondly, it identifies London's dominance and Frankfurt's growth as a complementary centre through quantitative analysis and then explains how European networks and interdependencies produce this, based on insights from interviews with investment bankers and insurance institution workers in the two cities.