昆明静止锋下的云南强倒春寒天气分析

利用NCEP1°×1°的6小时再分析资料和常规观测资料,对2005年3月云南出现强倒春寒天气过程的环流特征和物理量场特征进行了分析,探讨了在无南支槽的配合下,由昆明静止锋和高空切变线引发的大范围降雪和降温的强倒春寒天气发生前后中低层环流的演变、热力学和动力学物理因子与倒春寒天气的关系及其形成条件,为今后预测这类天气提供参考依据。     

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湖北省一次区域性暴雨过程的综合分析

采用T213产品中的物理量资料和天气图、卫星云图和雷达回波资料,对2007年7月1日江汉平原和鄂东的大暴雨天气过程的环流背景及其动力、热力、水汽条件进行了综合分析。结果表明：乌山低槽分裂出的冷空气东移,在华北东北部形成气旋波,其后部冷空气南下与副热带高压北上携带的暖湿气流相对峙所形成的湿度锋锋生和低层低涡、切变线是造成本次大暴雨天气过程的主要天气系统。有利强降水的各物理量场配合是降水云团迅速发展加强的有利条件。有能量锋区配合的θse高能区和K指数≥39℃的区域是有利大暴雨产生的区域。     

浙江省常山岩前钨矿找矿模型的建立及其应用

通过对常山岩前钨矿区矿床地质、物探、化探资料的收集和分析,建立起该类型矿床的成矿模式及找矿预测模型,在岩前成矿远景区圈定出最小预测单元4个,其中2个A级预测单元、2个C级预测单元,并利用MRAS软件预测了钨金属资源量。     

基于GAMIT软件的对流层延迟量解算分析

高精度数据处理软件是GPS数据解算的重要组成部分,也是GPS应用于各项研究领域的前提。基于GAMIT软件,通过研究分析其在解算时的关键技术,对广西CORS数据进行了解算,得出了其天顶方向延迟量。     

Commodifying poverty: gentrification and consumption in Vancouver’s Downtown Eastside

The Downtown Eastside of Vancouver, British Columbia, remains one of the poorest neighborhoods in Canada, yet is also a site of rapid gentrification. Both new and revitalized restaurants have created new spaces of consumption, transforming the neighborhood into a dining destination. Site visits and an analysis of the discourses used in newspaper articles and magazine features, as well as on blogs and in other online spaces, indicate that the presence of poor and marginalized residents of the Downtown Eastside is one of the reasons for some consumers’ decisions to visit new upscale establishments in the area. Analysis of advertisements and other primary documents indicates that the presence of poor and marginalized residents has become a competitive niche for the promotion of distinctive and authentic culinary adventures. This trend toward poverty tourism signals a shift from the simple displacement of low-income residents to a more complex form of gentrification in which residents face spatial management and control while their poverty is commodified.     

THE CORPORATE INTERLOCKING DIRECTORATE AS AN URBAN SPATIAL INFORMATION NETWORK

During the past decade, governments throughout the developing world have implemented policies promoting political and economic decentralization. To date, the study of decentralization has focused on political issues, while the consequences of these policies for geographical patterns of development have been largely ignored. This paper explores the geographical impacts of political decentralization with a study of changing patterns of real estate development in the metropolitan area of Caracas, Venezuela. In Venezuela, decentralization policies have created incentives for the fragmentation of the metropolitan area into a number of municipal governmental units, each pursuing its own developmental strategy. Resulting changes in the geographical patterns of real estate investment are examined. Particular consideration is given to development of a socially exclusive, multifunctional enclave within the city, that both divides and reorders the spatial structure of Caracas. [Key words: decentralization, municipal governance, real estate markets, Caracas, Venezuela.]     

Building the Healthy City: The Role of Nonprofits in Creating Active Urban Parks

Access to parks and recreational opportunities contributes to physical activity and positive health outcomes. But who is responsible for building the healthy city, particularly where resources are limited? While neoliberal state restructuring and fiscal austerity measures have increased the responsibility of nonprofit organizations in local services provision, little is known about their role in promoting healthy urban environments. This article investigates the role of nonprofits in supporting parks and physical activity in Southern California and analyzes the relationships between levels of voluntary-sector activity and the socio-demographic, economic, and fiscal characteristics of municipalities. Results indicate that nonprofits are unevenly distributed and more active in affluent, fiscally stronger, suburban, conservative, and white municipalities, reproducing intra-urban differences underlying health disparities.     

“海棠”和“泰利”对湖北降水影响的诊断分析

利用T213数值预报产品和常规气象资料,研究2个登陆西行热带气旋对湖北省降水分布的影响。结果表明:热带气旋"海棠"在西行过程中,其北部倒槽自东向西掠过湖北大部地区时,由于无次级环流出现,而未发生强降水天气;"泰利"在西行过程中,其北部倒槽在掠过鄂东地区时,由于有次级环流相配合,所以带来鄂东地区的强降水天气。次级环流是由多种因素引起的,次级环流产生地与强降水发生地是一致的。     

一次伴随冰雹的超级单体风暴特征

利用中国气象监测网实测资料、重庆西部多普勒天气雷达资料及NCEP/NCAR 6 h间隔1°×1°再分析资料,对2008年6月5日发生在重庆市中部的大风冰雹天气过程进行了天气背景、物理量、雷达回波和云图特征分析.研究表明:大气中显著的水平风切变和垂直风切变及晴空太阳辐射对地面的不均匀加热都有利于诱生涡度;从北部高层向南侵...