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China has a widely distributed rising SRB since 1980s. Linear regression and spatial filtering on provincal and county scale SRB are implemented to explore the relationship between SRB and four factors: economy, education, culture and family planning policy of China. On the province scale data, the policy variables have similar explanation effect of fertility ratio on SRB, and the family planning...
Geo-information Tupu has preponderance in disclosing the intrinsic law of “patterns and processes” of the geo-phenomena. This research focuses on the analysis of landscape change of the eco-environment in Fujian, China, based on the theory of Geo-information Tupu. At first, based on the analysis of interactions between basic environmental factors in Fujian province, it brings forward a basic cluster...
Complex relationship and multi-level massive of spatial data need to be expressed in forms of better visual conception as new cartographic visualization methods show up. Definition of traditional thematic maps is so strict that limits the expressions, so a new confine of definition that we call it “geo-infographics” is defined. It includes both traditional thematic mapping and new expressions referring...
Kanazawa is a historical city with famous traditional architecture, temples and merchant areas etc. The amount of places in these areas is large and each place has their own characteristic, different relations also exist among different places. But these figures and relations are not systematized to become a set of knowledge. This study aims to propose a prototype of personalized route planning system...
The contents and key technologies of GIS based city and county earthquake emergency platform are set forth. These contents are quickly determining earthquake information, collecting earthquake disaster information, aiding government emergency rescue decision-making, and earthquake disaster prevention publicity and social actions. According to these contents, GIS based architecture of the platform...
Taking Jinjiang watershed of Fujian province in China as study area, this work examines the effects of DEM resolutions, ranging from 30m to 600m, on Nash efficiencies of rainstorm flood simulation based on HEC-HMS model. Another focus is the influence of sub-basin division on flood simulation results. The study indicates that, with the decreasing of DEM resolution, basin slope, among other parameters...
With the rapid development of rural socio-economic in China, multi-source statistical information is one kind important data to enhance decision-making for government. The rural has become a major problem. In this paper, a set of GIS spatial analysis methods of rural social-economic data were proposed and researched on, spatial data and statistical data were integrated to create a comprehensive spatial...
With China's continuous economic development, the requirement of transportation capacity is increasing, and a corresponding increase in highway construction is raised to an important position. As regions, which highway route straddled, often have volatile features and complex geological environment. When facing the complicated geological environment, the traditional exploration methods in the field...
The article tries to apply the hierarchical location theory to traditional Location-allocation model to form a dynamic hierarchical location model. This model considers the rating of bank outlet and the influence of population redistribution caused by land use alteration after the urban extension. The case research of the downtown in Kunming indicates that it has certain advantage in simulating the...
The nighttime lights collected by the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) have a number of favorable characteristics for depicting the spatial patterns of Constructed surfaces on large scale. This paper presents a quantitative analysis on the brightness of nighttime lights and territorial development intensity (TDI) from pixel-scale using...
Geospatial Raster Services provide access to manifold and large assets of geo information in earth system sciences, such as solar, atmosphere, cryosphere, oceans, solid earth, and biosphere research. Conformance testing of such services increases confidence in credibility of their results, something essential for collaborative science. In this paper we propose to test geo services against reference...
Research of global climate change has an urgent need for the distribution of CO2 emissions with high spatial resolution. Traffic is an important carbon source in the urban development. Real-time data collected by the Intelligent Traffic System (ITS) plays a more and more significant role in the CO2 spatial-temporal distribution data production. However, the amount of data is so large that the data...
Based on the analysis of the existing problems in pixel-based image processing and object based image analysis (OBIA), this paper proposed a Geographic Unit Sequences (GUS) based image analysis approach, designed to apply geographic ontology knowledge to object based image analysis, so that the image analysis results become the carriers of geographic principle rather than the distribution of land...
This paper presents the preliminary result for the detection of post-seismic relaxation from the 2001 Ms 8.1 Kokoxili earthquake using coherent targets. 14 scenes of ENVISAT ASAR imagery from 2003 to 2007 are adopted in this research to study the post-seimic surface deformation in Kusai Lake region. Two data combination strategies are adopted and compared. The result shows that coherent targets or...
To explore the relationship between seasonal influenza and the environment, the principal task is to make data on influenza and environment for effective management. This paper focuses on the design and implementation of spatial database system for seasonal influenza in mainland China. Firstly, it proposed the influential environmental factors for seasonal influenza and collected the influenza surveillance...
Ambient air quality is primarily affected by respirable particulate matter (PM), SO2 and NO2 concentrations in the atmosphere. Monthly remote sensing data of SCIAMACHY tropospheric SO2 vertical column densities was measured from January 2004 to December 2010. OMI tropospheric SO2 vertical column densities was measured from October 2004 to December 2010. And daily ambient air pollution index (API)...
Accurate remote assessment of chlorophyll-a (chla) concentration is particularly challenging in turbid waters, especially during the period of cyanobacterial algae bloom outbreak. In this study, we took Taihu Lake as an example, and presented a chl-a estimation method in the condition of cyanobacteria algae bloom outbreaking by using MODIS data. The main idea of this method is (1) to study the water...
Due to the influence of atmosphere condition, cloud cover is one of the most disturbance factors in remote sensing image. So cloud removal is a very important step for improving the quality of the image before making analysis. Because thin cloud is the low frequency component in remote sensing images, homomorphic filtering can be used to remove thin cloud. The traditional method takes whole image...
Bus Rapid Transit (BRT) is generalized as an approach for using buses as an improved high speed transit system. By applying innovative technologies, e.g. signal prioritization, few stops, and easy-to-board vehicles, BRT can provide faster and more stable service, compared with the regular bus service. BRT has became a popular public transportation approach in many United States cities, such as Albany,...
In this paper, taking GIS desktop software as a starting point, the overall framework of the GIS smart client based on SOA (Service-oriented architecture) is propounded. The GIS smart client is loosely coupled, extensible, easy to realize modularization and easy for maintenance. Existing as a component container, on the premise of with function to manage geo-spatial data to a certain extent, the GIS...
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