Developing an integrated 2D and 3D WebGIS-based platform for effective landslide hazard management

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• 作者：Wenjun Chen^a ; ^{howcoolheis@gmail.com} ; Bin He^a ; Lei Zhang^b ; Daniel Nover^c
• 关键词：Landslide hazard ; Landslide multi-level management ; Landslide emergency response ; 2D and 3D WebGIS ; Web service integration
• 刊名：International Journal of Disaster Risk Reduction
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：20
• 期：Complete
• 页码：26-38
• 全文大小：2184 K
• 卷排序：20

文摘

Collaborative effort for the improvement of landslide database is important during the long-term risk reduction process in large hilly and mountainous regions. This paper presents a novel 2D and 3D WebGIS-based platform for landslide multi-level management and emergency response. The scalable network architecture and three-tier software architecture are designed to support survey data improvement performed by geological surveys in different administrative levels, fast spatial decision support for rescue and evacuation after sudden hazard incidents, as well as prevention information for public access. The web service integration is widely applied in the platform, and proved useful for keeping landslide-related information consistent and up-to-date, since it relies on joint efforts from different government departments with expertise, rather than the local and independent storage pattern. The combined utilization of 2D and 3D WebGIS takes advantage of their respective superiorities, and generates a superior display and analytic web environment for local decision-makers. The 2D map in ArcGIS Flexviewer is mainly for hazard query, spatial statistics and map overlaying analysis during routines, while the 3D scene in Skyline ActiveX component is useful in terrain exploration, rainfall situation analysis and sketch map plotting in emergencies. After elaborating the main modules and key algorithms, the user-friendly platform has been experimented and accepted by three levels of geological surveys in Zhejiang Province, China, and presented as an integrated WebGIS environment for effective landslide hazard management in large prone areas.