RASTER MAP SERVICES VIEWER FOR FLOOD RISK ANALYSIS AND ASSESSMENT
Author(s)
YOLANDA SOLÍS-ALVARADO, JAVIER ALEMÓN, MIGUEL MEDINA-GARCÍA, JAVIER GARCÍA-HERNÁNDEZ, HÉCTOR SANVICENTE-SÁNCHEZ
Abstract
The Mexican Institute of Water Technology (IMTA, its Spanish acronym) has developed a geographical tool named Raster Map Services Viewer version 1.0, in order to publish flood zones in a public way for some return periods (Tr), mainly for Tr 2, 5, 10, 50 and 100 years, of some priority areas of the country. The application has the web address http://hidrosuperf.imta.mx/anriconagua/ and at this web address it is possible to consult the map services of 13 pilot zones obtained by modelling made by the Institute of Engineering of the Autonomous University of Mexico (UNAM) and cost calculation made by IMTA in 2013, likewise 4 basin-cities generated (modelled and cost calculated) by IMTA in 2014. These map services were generated with the Geoserver tool, which is an open source server for sharing geospatial data. Each raster map service can have one of three variables: velocity, flood depth and cost (damage) per cell, which are queried by clicking on the cell of interest. The first raster map service contains flood depth per cell resulting from hydrological-hydraulic modelling made by a team of modelers from two institutions in Mexico (UNAM and IMTA); The second one has the velocity of the flow with which that flood depth was reached, and the last one has the costs in Mexican pesos per pixel estimated with the computational tool ANRI_Batch-PC v1.0. Raster Map Services Viewer version 1.0 also manages user and password to give maintenance to the site. The costs in Mexican pesos are far from accurate, however, they can be used as a reference parameter or indicator to have an idea of how critical the problem of flooding is in the selected area.
Keywords
raster map services, flood zones, return period, cost calculation
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