International Association of Hydrogeologists and China   总被引：1，自引：0，他引：1       下载免费PDF全文

HAN Zai-sheng  NI Zeng-shi 《地下水科学与工程》2017,5(3):303-310

Before 1985, there were a few Chinese participators for International Association of Hydrogeologists which founded in 1956. The Chinese team composed of senior hydrogeologists attended the 17th and 18th IAH congress in 1985. More and more Chinese delegates were present at the conferences since then. The IAH National Chapter of China was first established in 1987 and organized related activities continuously since that time. The IAH members in P.R. China increased in these years. IAH congresses have been hold in China twice. The 21th congress was held in Guilin City in October, 1988. The 34th congress was held in Beijing in October, 2006. The IAH China Chapter serves for all IAH members and other scientists promoting groundwater sciences in China. There were a lot of national conferences on Hydrogeology and Groundwater sciences held almost every year since 1987. Those national conferences associate with Commission on Hydrogeology, Geology Society of China in operation. Many Chinese IAH members were the editors and responsible for the Chinese translation for the abstract of Hydrogeology Journal. The Journal of Groundwater Science and Engineering is an international journal for the natural sciences. The sponsors are IAH China chapter, Institute of Hydrogeology and Environmental Geology, CAGS.  相似文献   

我国海冰观测预报及其应用综述          下载免费PDF全文

李四海 《海洋开发与管理》2017,34(8):3-6

文章介绍我国渤海和黄海北部海冰灾害的概况以及包括观测内容、数据获取和观测产品在内的我国海冰观测预报工作的基本情况;以俄罗斯和加拿大为例介绍国外开展海冰观测预报和信息产品应用的经验,同时介绍国际海冰组织开展工作的情况。结合我国经济发展和"一带一路"建设需求,对我国海冰观测预报工作提出建议,即扩展观测预报区域,做好信息发布;扩大信息应用领域,研发内容更加丰富的信息产品;加强国际交流合作,借鉴和应用国际经验。  相似文献   

Organizing coordination for an ecosystem approach to marine research and management advice: The case of ICES     

《Marine Policy》2017

This study examines the reorganization of formal coordination structures of a unique international public organization involved in marine governance in Europe, namely the structural reorganizations of the International Council for the Exploration of the Sea (ICES) between 1999 and 2009. The findings indicate that the reorganizations of ICES’ formal coordination structures were not driven primarily for reasons of efficiency, by clear and consistent goals, and by clear means-ends considerations for organizational design as proposed by rational perspectives in organization theory. Instead, the formal coordination structures have also been adapted to live up to changing expectations in the institutional environment, to modern management concepts in marine governance such as the Ecosystem Approach to Management (EAM), and to ensure the legitimacy of the organization. However, it is also found that institutional explanations alone are insufficient to comprehensively understand why the formal organizational structures of ICES were reorganized. Instrumental and cultural perspectives in organization theory as well as resource-dependence theory additionally add to understand how ICES responded to external demands and why organizational structures have been changed.  相似文献   

The impact of the Sustainable Development Goals on a network of 276 international organizations     

《Global Environmental Change》2022

Global sustainability governance is marked by a highly fragmented system of distinct clusters of international organizations, along with states and other actors. Enhancing inter-organizational coordination and cooperation is thus often recognized as an important reform challenge in global sustainability governance. The 17 Sustainable Development Goals, agreed by the United Nations in 2015, thus explicitly aim at advancing policy coherence and institutional integration among the myriad international institutions. Yet, have these goals been effective in this regard? We assess here the impact of the Sustainable Development Goals on the network structure of 276 international organizations in the period 2012–2019, that is, four years before and four years after the launch of the Sustainable Development Goals. The network structure was approximated by analyzing data from the websites of these 276 international organizations that were joined by more than 1.5 million hyperlinks, which we collected using a custom-made web crawler. Our findings are contrary to what is widely expected from the Sustainable Development Goals: we find that fragmentation has in fact increased after the Sustainable Development Goals came into effect. In addition, silos are increasing around the 17 SDGs as well as around the social, economic, and environmental dimensions of sustainable development.  相似文献   

国际前寒武纪地质年代表划分方案研究进展          下载免费PDF全文

郭丽娜  郭荣涛 《江苏地质》2012,36(1):1-7

传统的前寒武纪地质年代表划分方案以全球标准地层年龄（GSSA）为基础,不代表任何特殊的岩石实体,仅以推测的绝对测年值为界线进行单元划分,脱离了客观的岩石记录和地球演化系统,不利于对前寒武纪地球系统的研究。2004年—2008年前寒武纪划分参考方案,以反映地球历史阶段特征的“关键事件”为界线,创建前寒武纪地层划分的“金钉子”,建立客观的、“自然的” 前寒武纪地质年代表,并且通过全球一级事件群把前寒武纪划分为5个宙,即创世宙、冥古宙、太古宙、过渡宙和元古宙。另外,经过综合分析建议将埃迪卡拉纪归到显生宙。因此,对前寒武纪的研究实际上变为对“前埃迪卡拉纪”的研究,使术语“显生宙”在内涵和应用上更加一致。虽然“参考方案”在一定程度上还仅仅是一个理论框架,需要大量的研究去充实和细化,但是对这两种划分方案的系统研究和对比,可以给我国前寒武纪工作者提供重要的研究思路和方向。  相似文献   

乌鲁木齐机场持续浓雾低空气象要素特征分析          下载免费PDF全文

王春红  王清平  王勇  谭艳梅 《沙漠与绿洲气象(新疆气象)》2021,15(6):89-94

利用乌鲁木齐市L波段雷达系统探空资料，对2014—2016年冬季12月至次年2月乌鲁木齐机场雾日、非雾日，雾日中持续浓雾日和非持续浓雾日的低空温、湿、风等气象要素特征进行了对比分析，结果表明：（1）雾日较之非雾日，近地层湿润层更厚，贴地逆温更厚更强（顶高950 m,强度0.55 ℃/100 m)。风速普遍略小于非雾日，地面为西南风，低空东南风厚度大，起始高度低于500 m，最大风速层低于1200 m。（2）持续浓雾日较非持续浓雾日，贴地逆温或悬垂逆温的第一逆温层底高和顶高更低，平均逆温强度更强，地面西南和近地层偏南风频数大，低空型东南风较强。第一逆温顶高低于600 m，悬垂逆温底高低于100 m，逆温强度大于0.55 ℃/100 m，低空型东南风起始高度高低于300 m，600 m高度以上东南风风速大于等于8 m/s等条件有利于持续浓雾的发生。  相似文献