Electromagnetic radiation environment is one of the important environmental factors. In resent 20 years, the applications of electromagnetic technology became more and more popular. However, electromagnetic environment makes some negative impacts on the surrounding environments and human health, and Environmental Management and Research Department pay a lot attention to it. It will make a great significance if we study of the simulation technique for urban electromagnetic environment which supported by GIS. This paper presents some key technologies of the electromagnetic environment simulation, including terrain rendering, city building modeling and volume data superposition, basically realize the visualization of volume data (electromagnetic fields) based on city building model and real time mapping of virtual scene data.
{"title":"Study on the Simulation Technique for Urban Electromagnetic Environment Supported by GIS","authors":"Yanming Chen, Jie Liu, Jie-chen Wang","doi":"10.4236/jgis.2009.11004","DOIUrl":"https://doi.org/10.4236/jgis.2009.11004","url":null,"abstract":"Electromagnetic radiation environment is one of the important environmental factors. In resent 20 years, the applications of electromagnetic technology became more and more popular. However, electromagnetic environment makes some negative impacts on the surrounding environments and human health, and Environmental Management and Research Department pay a lot attention to it. It will make a great significance if we study of the simulation technique for urban electromagnetic environment which supported by GIS. This paper presents some key technologies of the electromagnetic environment simulation, including terrain rendering, city building modeling and volume data superposition, basically realize the visualization of volume data (electromagnetic fields) based on city building model and real time mapping of virtual scene data.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"31 1","pages":"17-21"},"PeriodicalIF":0.0,"publicationDate":"2009-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72989949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A large quantity of data in earthquake, well-log, grilling, geology and other non-seismic geophysics, has been accumulated during long period of petroleum prospecting. These data are stored in papery document and managed in low efficient manual management. This paper proposed this petroleum exploration information man-agement system which adopts SQL Server2000 as database server and combines B/S and C/S model based on MapGIS. By the combination of data layer, management layer and application layer, it realized exploration information management and sharing. The experimental experience shows that this system ensures the exploration information be better applied and developed, and provide better decision-making for the leaders.
{"title":"Design and Study on Exploration Data Management System on MapGIS","authors":"Ye Chen, Wenyou Fan","doi":"10.4236/jgis.2009.11007","DOIUrl":"https://doi.org/10.4236/jgis.2009.11007","url":null,"abstract":"A large quantity of data in earthquake, well-log, grilling, geology and other non-seismic geophysics, has been accumulated during long period of petroleum prospecting. These data are stored in papery document and managed in low efficient manual management. This paper proposed this petroleum exploration information man-agement system which adopts SQL Server2000 as database server and combines B/S and C/S model based on MapGIS. By the combination of data layer, management layer and application layer, it realized exploration information management and sharing. The experimental experience shows that this system ensures the exploration information be better applied and developed, and provide better decision-making for the leaders.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"55 1","pages":"31-35"},"PeriodicalIF":0.0,"publicationDate":"2009-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77440230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Land use is an indicator of the interaction between human and the environment on the earth surface. Recently, an increasing attention has been paid to the issue of impact of land use and land cover change on environment and water quality. In this paper, we analyzed the land use and land cover change by using RS and GIS, and simulated its implications in runoff from 1991 to 2000 using SCS model in the Foping Nature Reserve, Shan 'xi Province. Our results showed that this region were main plantation, woodland and grassland. Woodland area increased significantly, while plantation and grassland area decreased, which would greatly affect runoff. Meanwhile, the results show that woodland area and land cover area are negatively correlated with the runoff.
{"title":"Using GIS to Analysis Runoff Change in Land Utilization of Foping, Nature Reserve, Shanxi Province","authors":"Yi Guo, Xiaoping Huang, Jingqian Peng","doi":"10.4236/jgis.2009.11010","DOIUrl":"https://doi.org/10.4236/jgis.2009.11010","url":null,"abstract":"Land use is an indicator of the interaction between human and the environment on the earth surface. Recently, an increasing attention has been paid to the issue of impact of land use and land cover change on environment and water quality. In this paper, we analyzed the land use and land cover change by using RS and GIS, and simulated its implications in runoff from 1991 to 2000 using SCS model in the Foping Nature Reserve, Shan 'xi Province. Our results showed that this region were main plantation, woodland and grassland. Woodland area increased significantly, while plantation and grassland area decreased, which would greatly affect runoff. Meanwhile, the results show that woodland area and land cover area are negatively correlated with the runoff.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"1 1","pages":"48-52"},"PeriodicalIF":0.0,"publicationDate":"2009-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81674134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper analyzes the existing spatial structure of mobile information services and the current new characteristics of the service, proposes a new service model. The model adopts a unified deployment solution of spatial data. It extends the spatial data management and lightweight computing to the embedded computing devices, and enhanced the service flexibility and scalability. The design of mobile side achieves the integration of spatial data management, mobile computing and wireless communication, and it can meet the various needs of spatial information mobile services. The paper introduces the composition of the new model and the key contents, and pointing out that this model is the inevitable trend of spatial information mobile services.
{"title":"Mobile Spatial Information Service Based on Intelligent Map Agent","authors":"Zhanya Xu, Xincai Wu","doi":"10.4236/jgis.2009.11006","DOIUrl":"https://doi.org/10.4236/jgis.2009.11006","url":null,"abstract":"This paper analyzes the existing spatial structure of mobile information services and the current new characteristics of the service, proposes a new service model. The model adopts a unified deployment solution of spatial data. It extends the spatial data management and lightweight computing to the embedded computing devices, and enhanced the service flexibility and scalability. The design of mobile side achieves the integration of spatial data management, mobile computing and wireless communication, and it can meet the various needs of spatial information mobile services. The paper introduces the composition of the new model and the key contents, and pointing out that this model is the inevitable trend of spatial information mobile services.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"2013 1","pages":"26-30"},"PeriodicalIF":0.0,"publicationDate":"2009-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86232891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The original surveying tools and methods are backward and low efficient and they will also generate lots of errors in the National secondary land surveying. MapSUV rural land surveying palm mapping system (MapSUV palm mapping system) based on 3S techniques, combines MapGIS rural land surveying database management system. It supports the spatial location information collection and attributes data entry. By combining with GPS receiver, it ensures high accuracy in small volume, which greatly facilitates land surveying. This paper main researched system structure, function module design and key techniques. It introduced the practical process of map spot attribute checking and map spot boundary. Then it gave the application assessment. The results shows that this system greatly improves the work efficiency of outdoor surveying and shorten the time of land surveying, database build and updating.
{"title":"Design and Realization of MapSUV Rural Land Surveying Palm Mapping System","authors":"Yonghua Wang, Wenfen Luo, Wenyou Fan","doi":"10.4236/jgis.2009.11008","DOIUrl":"https://doi.org/10.4236/jgis.2009.11008","url":null,"abstract":"The original surveying tools and methods are backward and low efficient and they will also generate lots of errors in the National secondary land surveying. MapSUV rural land surveying palm mapping system (MapSUV palm mapping system) based on 3S techniques, combines MapGIS rural land surveying database management system. It supports the spatial location information collection and attributes data entry. By combining with GPS receiver, it ensures high accuracy in small volume, which greatly facilitates land surveying. This paper main researched system structure, function module design and key techniques. \u0000It introduced the practical process of map spot attribute checking and map spot boundary. Then it gave the application assessment. The results shows that this system greatly improves the work efficiency of outdoor surveying and shorten the time of land surveying, database build and updating.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"1 1","pages":"36-41"},"PeriodicalIF":0.0,"publicationDate":"2009-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79570391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The rapid development of urbanization requires land management business should change the former single systematic pattern, and advance to integration of functions and data sharing. In order to meets the requirement, this paper presents a new thinking for land management pattern, and management tools of data center for integration of urban and rural areas. The tools were based on MapGIS, which have made the management of multi-subjects, multi-areas, multi-sources and multi-measurement data possible. The techniques of this system are designed accord with national related standard. Experimental result shows that the tools have obvious technical advantage in land resource business integration management.
{"title":"Design and Study on Management Tools of Land Data Center for Integration of Urban and Rural Areas","authors":"Shiwu Xu, Xiuzhen Liu","doi":"10.4236/jgis.2009.11009","DOIUrl":"https://doi.org/10.4236/jgis.2009.11009","url":null,"abstract":"The rapid development of urbanization requires land management business should change the former single systematic pattern, and advance to integration of functions and data sharing. In order to meets the requirement, this paper presents a new thinking for land management pattern, and management tools of data center for integration of urban and rural areas. The tools were based on MapGIS, which have made the management of multi-subjects, multi-areas, multi-sources and multi-measurement data possible. The techniques of this system are designed accord with national related standard. Experimental result shows that the tools have obvious technical advantage in land resource business integration management.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"1 1","pages":"42-47"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74950873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
According to the requirements of provincial land management operation, this paper introduced a method to build municipal land usage database on country level land usage database building. It realizes provincial land usage data updating, transfer and application management. This paper analyzed provincial land usage database construction requirements from data, software and hardware environment, database, etc. It also designed the mathematic base, land usage data feature, data dictionary and metadata. All the database construction process has been listed, including database configuration management, system optimization and security maintenance. at last, it presents some database applications which provides reference for the provincial land usage database construction.
{"title":"Provincial Land Utilization Database Construction Analysis","authors":"Wenfeng Liao, Shiwu Xu","doi":"10.4236/jgis.2009.11005","DOIUrl":"https://doi.org/10.4236/jgis.2009.11005","url":null,"abstract":"According to the requirements of provincial land management operation, this paper introduced a method to build municipal land usage database on country level land usage database building. It realizes provincial land usage data updating, transfer and application management. This paper analyzed provincial land usage database construction requirements from data, software and hardware environment, database, etc. It also designed the mathematic base, land usage data feature, data dictionary and metadata. All the database construction process has been listed, including database configuration management, system optimization and security maintenance. at last, it presents some database applications which provides reference for the provincial land usage database construction.","PeriodicalId":93313,"journal":{"name":"Journal of geographic information system","volume":"51 1","pages":"22-25"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73633822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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