This document describes the creation of an informative Web GIS aimed at mitigating the impacts of flooding in the municipality of Ouagadougou, in Burkina Faso, a region that is highly sensitive to climate change. Burk...This document describes the creation of an informative Web GIS aimed at mitigating the impacts of flooding in the municipality of Ouagadougou, in Burkina Faso, a region that is highly sensitive to climate change. Burkina Faso, which is undergoing rapid urbanization, faces major natural threats, particularly flooding, as demonstrated by the severe floods of 2009 that caused loss of life, injury, structural damage and economic losses in Ouagadougou. The aim of this research is to develop a web map highlighting the municipality’s flood-prone areas, with a view to informing and raising awareness of flood risk reduction. Using the Leaflet JavaScript mapping library, the study uses HTML, CSS and JavaScript to implement web mapping technology. Data on Ouagadougou’s flood zones is generated by a multi-criteria analysis combining Saaty’s AHP method and GIS in QGIS, integrating seven (7) parameters including hydrography, altitude, slope, rainfall, soil types, land use and soil moisture index. QGIS processes and maps the themes, PostgreSQL with PostGIS serves as the DBMS and GeoServer functions as the map server. The Web GIS platform allows users to visualize the different flood risks, from very low to very high, or the high-risk areas specific to Ouagadougou. The AHP calculations classify the municipality into five flood vulnerability zones: very low (24.48%), low (27.93%), medium (23.01%), high (17.11%) and very high (7.47%). Effective risk management requires communication and awareness-raising. This online mapping application serves as a tool for communication, management and flood prevention in Ouagadougou, helping to mitigate flood-related natural disasters.展开更多
随着位置服务业务的兴起及迅猛发展,信息化手段在旅游资源普查工作中的优势不断凸显。以山东省蓬莱市为例,设计并验证基于Internet的位置服务平台中的GIS系统应用。该系统是以ArcGIS API for Javascript为核心、根据瘦客户机的多层体系...随着位置服务业务的兴起及迅猛发展,信息化手段在旅游资源普查工作中的优势不断凸显。以山东省蓬莱市为例,设计并验证基于Internet的位置服务平台中的GIS系统应用。该系统是以ArcGIS API for Javascript为核心、根据瘦客户机的多层体系架构开发完成,并通过组件封装将GIS系统顺利移植到LBS平台中。阐述该技术所依托的平台,对比分析目前主流的WebGIS开发工具,在此基础上选择适合的解决方案,将系统划分为旅游资源采集与填报、系统数据库自动建库、旅游资源分析评价、网络发布与展示等4个子系统。采用基于国标的分类与编码,结合网络地图、高分辨率遥感影像及GPS技术,实现网络环境下旅游资源普查、空间位置数据的录入、审核等数字化上报,旅游资源数据自动建库、统计、评价、可视化等服务。本工作对未来旅游资源开发和产品建设等方面具有较强的支撑作用。展开更多
基于位置服务业务的兴起及迅猛发展趋势,研究并设计实现了基于Internet的位置服务平台中的地理信息系统GIS(Geographic Information System)。系统是以MapXtreme for Java为核心、按照瘦客户机的四层体系架构开发实现的,重点设计并开发...基于位置服务业务的兴起及迅猛发展趋势,研究并设计实现了基于Internet的位置服务平台中的地理信息系统GIS(Geographic Information System)。系统是以MapXtreme for Java为核心、按照瘦客户机的四层体系架构开发实现的,重点设计并开发了地图显示、终端定位、地图控制、相关查询、地理编码、逆地理编码等功能模块,并通过组件封装将GIS子系统顺利移植到了LBS(Location Based Service)平台中。整个系统100%纯Java实现,具有良好的可移植性。展开更多
文摘This document describes the creation of an informative Web GIS aimed at mitigating the impacts of flooding in the municipality of Ouagadougou, in Burkina Faso, a region that is highly sensitive to climate change. Burkina Faso, which is undergoing rapid urbanization, faces major natural threats, particularly flooding, as demonstrated by the severe floods of 2009 that caused loss of life, injury, structural damage and economic losses in Ouagadougou. The aim of this research is to develop a web map highlighting the municipality’s flood-prone areas, with a view to informing and raising awareness of flood risk reduction. Using the Leaflet JavaScript mapping library, the study uses HTML, CSS and JavaScript to implement web mapping technology. Data on Ouagadougou’s flood zones is generated by a multi-criteria analysis combining Saaty’s AHP method and GIS in QGIS, integrating seven (7) parameters including hydrography, altitude, slope, rainfall, soil types, land use and soil moisture index. QGIS processes and maps the themes, PostgreSQL with PostGIS serves as the DBMS and GeoServer functions as the map server. The Web GIS platform allows users to visualize the different flood risks, from very low to very high, or the high-risk areas specific to Ouagadougou. The AHP calculations classify the municipality into five flood vulnerability zones: very low (24.48%), low (27.93%), medium (23.01%), high (17.11%) and very high (7.47%). Effective risk management requires communication and awareness-raising. This online mapping application serves as a tool for communication, management and flood prevention in Ouagadougou, helping to mitigate flood-related natural disasters.
文摘随着位置服务业务的兴起及迅猛发展,信息化手段在旅游资源普查工作中的优势不断凸显。以山东省蓬莱市为例,设计并验证基于Internet的位置服务平台中的GIS系统应用。该系统是以ArcGIS API for Javascript为核心、根据瘦客户机的多层体系架构开发完成,并通过组件封装将GIS系统顺利移植到LBS平台中。阐述该技术所依托的平台,对比分析目前主流的WebGIS开发工具,在此基础上选择适合的解决方案,将系统划分为旅游资源采集与填报、系统数据库自动建库、旅游资源分析评价、网络发布与展示等4个子系统。采用基于国标的分类与编码,结合网络地图、高分辨率遥感影像及GPS技术,实现网络环境下旅游资源普查、空间位置数据的录入、审核等数字化上报,旅游资源数据自动建库、统计、评价、可视化等服务。本工作对未来旅游资源开发和产品建设等方面具有较强的支撑作用。
文摘基于位置服务业务的兴起及迅猛发展趋势,研究并设计实现了基于Internet的位置服务平台中的地理信息系统GIS(Geographic Information System)。系统是以MapXtreme for Java为核心、按照瘦客户机的四层体系架构开发实现的,重点设计并开发了地图显示、终端定位、地图控制、相关查询、地理编码、逆地理编码等功能模块,并通过组件封装将GIS子系统顺利移植到了LBS(Location Based Service)平台中。整个系统100%纯Java实现,具有良好的可移植性。
