Integrating Spatial Data Linkage and Analysis Services in a Geoportal for China Urban Research

Many geoportals are now evolving into online analytical environments, where large amounts of data and various analysis methods are integrated. These spatiotemporal data are often distributed in different databases and exist in heterogeneous forms, even when they refer to the same geospatial entities. Besides, existing open standards lack sufficient expression of the attribute semantics. Client applications or other services thus have to deal with unrelated preprocessing tasks, such as data transformation and attribute annotation, leading to potential inconsistencies. Furthermore, to build informative interfaces that guide users to quickly understand the analysis methods, an analysis service needs to explicitly model the method parameters, which are often interrelated and have rich auxiliary information. This work presents the design of the spatial data linkage and analysis services in a geoportal for China urban research. The spatial data linkage service aggregates multisource heterogeneous data into linked layers with flexible attribute mapping, providing client applications and services with a unified access as if querying a big table. The spatial analysis service incorporates parameter hierarchy and grouping by extending the standard WPS service, and data‐dependent validation in computation components. This platform can help researchers efficiently explore and analyze spatiotemporal data online.     

REGIONAL EFFECTS BY THE CONSTRUCTION OF SUZHOU INDUSTRY GARDEN

１　ＡＤＶＡＮＣＩＮＧＯＦＴＨＥＱＵＥＳＴＩＯＮＡＮＤＣＯＮＳＴＲＵＣＴＩＯＮＢＡＣＫＧＲＯＵＮＤＯＦＳＵＺＨＯＵＩＮＤＵＳＴＲＹＧＡＲＤＥＮＰｅｒｒｏｘｇａｖｅｓｐｅｃｉａｌａｔｔｅｎｔｉｏｎｔｏｔｈｅｅｆｆｅｃｔｏｆｉｍｐｏｒｔａｎｔｉｔｅｍｓａｎｄｃｏｎｓｔｒｕｃｔｉｏｎｏｆｉｎｆｒａｓｔｒｕｃｔｕｒｅｗｈｅｎｈｅｄｉｓｃｕｓｓｅｄｔｈｅｐｒｏｄｕｃｔｉｏｎｏｆｇｒｏｗｔｈｐｏｌｅ（Ｌｉ，１９８８）．Ｌｏｔｓｏｆｄｏｍｅｓｔｉｃｓｃｈｏｌａｒｓｈａｖｅａｌｓｏｐｒｏｂｅｄｉｎｔｏｔｈｉ…     

基于遥感多特征组合的冰川及其相关地表类型信息提取

冰川作为青藏高原的一种典型的地表覆盖类型,在高寒地区广泛分布,往往因为地形复杂,无法实地测绘。本文利用高分辨率遥感影像和高精度的DEM,在分析各种冰川类别的光谱、形状、空间关系、地形和气候等环境分布特征的基础上,综合和发展了现有的特征描述算法,建立了描述各种冰川类别特征的组合提取模型,运用面向对象的自动提取方法,对西部测图区青藏高原试验区进行了冰雪影像自动识别试验。试验结果表明,该方法是可行的,它对难以实地测量的冰雪信息引进了遥感自动提取方法,为研究冰川消融和气候变化拓展了研究思路。     

具有弯曲效应的层状结构岩体变形的Cosserat介质分析方法

在反倾向层状岩体边坡、有底鼓现象的巷道以及隧洞工程中，岩体常出现弯曲变形及弯曲破坏现象。常规的等效连续介质理论忽略了梯度应力的影响，因而不能很好解决上述工程问题．Ｃｏｓｓｅｒａｔ介质理论以具有一定尺度的微元体为研究对象，引进了偶应力及弯曲曲率概念，从而考虑了弯曲效应对介质变形特性的影响。本文首先介绍Ｃｏｓｓｅｒａｔ介质理论的基本原理，然后建立有限元计算模式，最后通过算例，说明这种模式对计算具有弯曲效应的展状岩体变形问题是有效的。     

计算极谱法同时测定镉镍的研究

采用普通极谱仪与计算机联机技术,用卡尔曼滤波处理以KSCN为支持电解质的Cd~(2+)和Ni~(2+)混合溶液的示波极谱重叠波。实验表明,极谱可逆波具有较好的加和性,可采用计算极谱方法对多组分(尤其是难以分开的重叠波)进行同时测定。     

基于TIN的半自动多影像同名线段匹配算法研究

提出了根据同名像点构成三角网(TIN)来进行同名直线的匹配。依据TIN预测左影像上一条给定直线在右影像上同名直线的搜索范围，计算给定直线与候选直线的灰度相关系数．取最大相关系数所对应的直线为同名直线。实验证明，该算法简单、可行。     

气象地理信息系统的设计与实现

微软.NET平台上采用C#语言编程, 从低层开发成功面向气象应用的专题型地理信息系统———气象地理信息系统 (MeteoGIS)。该系统以满足气象防灾减灾工作对GIS功能的迫切需求为目标, 实现了一个拥有自主版权的独立GIS内核, 不依赖于任何商业GIS系统及其二次开发接口。介绍了该系统开发的背景、目的、意义与若干关键技术, 简述了该系统的结构、功能与推广应用前景。     

资阳地区强降水气候分析及其短期预报模式

本文通过对资阳的大～暴雨、暴雨的分布、强度和出现时段等气候统计分析,根据各类天气系统在关键区发生、发展及其演变规律进行分型,并建立了资阳强降水的预报模式.     

Preliminary study on the relationship between the crust-mantle structure and the formation of Laowangzhai superlarge gold deposit

The essential shallow-crust structural factors controlling the formation of Laowangzhai gold deposit include favorable tectonic and regional structural site, the release site of a great deal of the earth energy, favorable orecontrolling structure system, abundant and favorable source rocks for gold, ductile shearing, abundant minerogenetic materials source in extensive crust and mantle. And the essential deep-seated crust-mantle structure factors dominating the formation of the ore deposit include intracrustal low-velocity len, high-velocity bodies in the lower part of middle crust and lower crust, the steps on the slope of Moho, connecting site of mantle rises, the crust-mantle transition layer, upwelling of asthenosphere and the low-velocity plume. It is concluded that the fundamental reason that controls the formation of Laowangzhai superlarge gold deposit lies in the coupling between deep and shallow crust-mantle structure factors controlling the formation of the deposit and their coupling with the lithospheric evolution and geological event. Project supported by the National Climbing Plan Programme A-30.