Critical review of Terrain Tile and Google Earth: Virtual image mapping methods for floodplain management.
Inundation mapping is a major component of floodplain management, providing critical information as to the consequences of potential failures of flood control structures. Flood mitigation efforts rely on the creation of inundation maps to develop appropriate response measures for crisis situations,...
| Publicado en: | Journal of Emergency Management Vol. 10; no. 6; pp. 433 - 442 |
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| Autores principales: | , , |
| Formato: | pictorial tables/charts Journal Article |
| Publicado: |
Weston Medical Publishing, LLC
2012 Nov-Dec
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=108093281&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 108093281 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15435865 24P2 jtl: Journal of Emergency Management issn: 15435865 maglogo: N pubinfo: dt: 2012 Nov-Dec vid: 10 iid: 6 pid: 49473 pub: Weston Medical Publishing, LLC place: Weston, Massachusetts artinfo: ui: 108093281 108093281 2011886425 10.5055/jem.2012.0120 108093281 ppf: 433 ppct: 9 formats: tig: atl: Critical review of Terrain Tile and Google Earth: Virtual image mapping methods for floodplain management. aug: au: Wise, Richard Darnell, Andrew Quaranta, John sug: subj: Disaster Planning Maps Natural Disasters Software Geographic Information Systems Web Search Engines ab: Inundation mapping is a major component of floodplain management, providing critical information as to the consequences of potential failures of flood control structures. Flood mitigation efforts rely on the creation of inundation maps to develop appropriate response measures for crisis situations, including dam failures. To develop inundation maps, a dam and river system is modeled with engineering computer programs, and a simulation of the dam failure is performed to generate data for the flood. This output data are input into other programs to develop inundation maps. Inundation maps have traditionally been produced in a paper format, but recent advances in computer modeling have provided the capability for virtual inundation maps. Virtual inundation maps offer new methods of presentation and analysis of flood impacts; thus, these mapping methods need to be investigated to determine the applications and relevance to floodplain management. The goal of this research is to advance the development and use of inundation maps by floodplain managers and emergency agencies. A simulation of a potential dam failure was performed using computer modeling for a candidate river system, and the inundation maps were created using two procedures: Terrain Tiles and Google Earth. An analysis of the strengths and weaknesses of each mapping procedure was conducted. The results indicated that the Terrain Tiles procedure has advantages in displaying critical information, such as arrival times and water depths. However, this mapping procedure is more labor intensive, and the online file sharing may not be accessible for all users. The strengths of the Google Earth procedure include two-dimensional and three-dimensional views for analysis, user-friendly file sharing, and the inclusion of built-in critical infrastructure and terrain data. Drawbacks of this procedure are that the inundation must still be generated in ArcGIS, the display of critical information is not as clear, and the online file sharing may pose security issues. Thus, the Terrain Tiles procedure should be used for the development of emergency response measures, and the Google Earth procedure should be used by emergency responders in the event of an actual emergency. pubtype: Academic Journal doctype: pictorial tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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