在波数域计算一维重磁异常导数的Matlab语言算法

利用Matlab内建的快速傅氏变换函数可以方便地在波数域计算重磁异常导数.介绍了基于Matlab语言的波数域求导的算法,给出了程序源代码,讨论了一些有助于提高计算精度的编程技巧.通过模型试验和数据分析,发现在计算垂向导数时波数域求导算法的精度比傅氏级数的精度有明显改善;而水平导数的计算,2种方法的精度相当.在某区钾盐勘探中,用该方法处理高精度重力剖面数据,取得了较好效果.     

一种参数化建筑物三维建模方法

针对传统的建筑物建模方法需要大量人机交互操作,建模过程复杂和成本高的问题,该文提出一种参数化建筑物三维建模方法。首先,以高分辨率遥感影像和建筑物立面影像作为数据源,在遥感和GIS软件平台的支持下,提取建筑物的底面边界、高度、楼层数、层高和屋顶类型等空间数据和属性数据,并将其保存至GIS空间数据库。其次,提出基于拉伸、拆分、添加结构面过程的建筑物主体结构建模方案,并设计了模型自动生成算法。进一步,采用Ruby面向对象语言,通过调用SketchUp平台的应用程序接口函数,结合编程实现了建筑物的自动化建模。最后,开发了建筑物参数化建模插件。实际建模实验成果表明:该方法能够显著降低建模人员劳动强度,提高建模效率。     

The Importance of Geography in Education II

Abstract

The concept of scale is fundamental to geography, yet the definitions for “scale” and related spatial terms can be confusing to those working in other spatial science disciplines. This is particularly true in the emerging multidisciplinary world of integrated remote sensing and geographic information systems, or IGIS's, where data of different types and at various spatial and temporal scales are combined to support complex space-time data analyses. Without a basic lexicon of accepted scale terms, working within an IGIS can breed confusion in the interpretation of data and the models that result from an IGIS construct. This paper provides some terminologies of scale that can be used as a framework for a multidisciplinary lexicon of accepted scaling terms and describes their relationships to an IGIS. It also illustrates how scaling terms can be potentially misunder stood when applied to geographic techniques that are used in disciplines related to geography.     

地形图符号的语言学特征

语言学模型在空间信息中的运用是近年来相关理论界讨论的一个重要问题。在分析了大比例尺地形图符号的几何构成及符号间的几何和语义关系的基础上,把地形图符号系统作为一种二维图形语言,将语言学的方法和理论应用到地图语言中。分析了地形图符号的特点,研究地形图符号的内部结构以及构造规则,讨论了地形图符号的语音和语义结构。     

内蒙古自治区地震局震情上报系统

针对内蒙古自治区地震局人工震情上报过程中存在的弊端和问题,基于VC语言,设计并实现自动震情上报系统。该系统通过读取EQIM数据库中的相关数据,采用模拟操作,实现无接口情况下采集EQIM中相应地图,并利用Microsoft office Word通用API,按所需格式生成包含震情数据与地图的震情上报文档,同时提供核对和校验功能,通过自动传真方式实现震情上报与保存功能。该系统的实现,减少了人工干预造成的错误,提高了震情上报的准确性和高效性,真正实现了震情的自动传真上报。     

全球化语境下“母语文化”教育的失衡与出路

全球化语境对中国外语教学带来了新的挑战和压力,外语教学中存在着"母语文化"教育失衡的现象。分析了"母语文化"教育失衡的原因及重视"母语文化"导入的意义,并在教学大纲制定、教材编写、教学方法、第二课堂、教师自身文化素质等方面,对如何导入"母语文化"教学,实现"母语文化"与"目的语文化"的融合提出了建议。     

我国外语教育规划初探

外语在现代社会中发挥着越来越重要的作用,外语教育规划应保持连贯性和系统性,使外语教育既有长期目标,也有短期的可操作性目标.回顾了新中国成立以来我国外语教育的发展,正反两方面的经验说明,外语教育规划应将当前局势需要与教育事业的长期需要协调一致,还应借鉴其它国家的先进经验.     

Which states will lead a just transition for the Arctic? A DeePeR analysis of global data on Arctic states and formal observer states

A fair and equitable low carbon future depends on a just transition which, in turn, requires leadership. Where the Arctic is concerned, this leadership is currently lacking. To gauge which states are most likely to provide leadership in the global energy transition, a quantitative rank-percentile assessment of 21 Arctic Council members and Observer states was conducted, using measures relevant to the just transition. Data from multiple open-access sources were combined, creating a model to ‘evaluate energy and equity aspects of Distributional, Procedural and Restorative’ justice (DeePeR). Results suggest normative leadership on a just transition for the Arctic comprises international climate contributions in line with carbon emission records and a commitment to both fair and green jobs. Reflections are made on the positive and negative effects of a more involved EU for the just transition agenda in the Arctic.     

HY-1卫星CCD遥感器海岸带动态监测应用示范系统开发

2002年5月15日，中国成功地发射了第一颗海洋探测卫星——HY-1卫星。该卫星有效载荷中的CCD相机可以获得海陆相互作用区域的高分辨率图像，是我国海岸带地区进行遥感动态监测的一种有效而经济的手段。针对该遥感器建设的海岸带动态监测应用示范系统是国家卫星海洋应用中心HY-1卫星地面应用系统建设的一部分，现已初步投入业务运行。论述了该系统的设计与开发，并通过个例实验验证了该系统的可操作性和实用性，探索了HY-1卫星CCD遥感信息在海岸带监测中的应用潜力，也为类似系统开发起到了示范作用。     

Adaptive Management of Urban Ecosystem Restoration: Learning From Restoration Managers in Rhode Island,USA

Urban aquatic restoration can be difficult to accomplish because of complications like industrial pollutants, population density, infrastructure, and expense; however, unique opportunities in urban settings, including the potential to provide benefits to many diverse people, can make urban restoration especially rewarding. The success of urban restoration projects—even those focused primarily on ecological targets—depends on community involvement and managers considering community needs. However, research on the social barriers to urban restoration and strategies managers use to overcome them is relatively rare. This work attempts to fill that gap by presenting barriers for aquatic restoration projects in urban settings and strategies to overcome them. Building from interviews with restoration managers involved in urban aquatic restoration projects in Rhode Island, we contribute through an adaptive management approach: identifying and synthesizing the lessons learned from managers’ work in urban settings. Ultimately, we suggest potential for double- and triple-loop learning by disentangling and critiquing the frames and policy/power structures that influence decision making in urban aquatic restoration.