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On the geochronological method versus flow simulation software application for lahar risk mapping: a case study of Popocatépetl volcano, Mexico

Muñoz-Salinas, Esperanza and Castillo-Rodríguez, Miguel and Manea, Vlad and Manea, Marina and Palacios, David (2010) On the geochronological method versus flow simulation software application for lahar risk mapping: a case study of Popocatépetl volcano, Mexico. Geografiska Annaler Series A: Physical Geography, 92 (3). pp. 311-328. ISSN 0435-3676. https://resolver.caltech.edu/CaltechAUTHORS:20100928-102353111

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Abstract

Lahars are hazardous events that can cause serious damage to people who live close to volcanic areas; several were registered at different times in the last century, such as at Mt St Helens (USA) in 1980, Nevado del Ruiz (Colombia) in 1985 and Mt Pinatubo (Philippines) in 1990. Risk maps are currently used by decision-makers to help them plan to mitigate the hazard-risk of lahars. Risk maps are acquired based on a series of tenets that take into account the distribution and chronology of past lahar deposits, and basically two approaches have been used: (1) The use of Flow Simulation Software (FSS), which simulates flows along channels in a Digital Elevation Model and (2) The Geochronological Method (GM), in which the mapping is based on the evaluation of lahar magnitude and frequency. This study addresses the production of a lahar risk map using the two approaches (FSS and GM) for a study area located at Popocatépetl volcano – Central Mexico. Santiago Xalitzintla, a town located on the northern flank of Popocatépetl volcano, where volcanic activity in recent centuries has triggered numerous lahars that have endangered local inhabitants, has been used for the case study. Results from FSS did not provide satisfactory findings because they were not consistent with lahar sediment observations made during fieldwork. By contrast, the GM produced results consistent with these observations, and therefore we use them to assess the hazard and produce the risk map for the study area.


Item Type:Article
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http://dx.doi.org/10.1111/j.1468-0459.2010.00397.xDOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1111/j.1468-0459.2010.00397.x/abstractPublisherUNSPECIFIED
Additional Information:© 2010 Wiley. Article first published online: 6 SEP 2010. This study was supported by a grant from the Spanish Ministerio de Educación y Ciencia (grant AP2002-1764 and project CGL2006-1983). The authors would like to thank Dr José Juan Zamorano and some of his students for their valuable help during fieldwork. The authors would like also to thank Dr Clean-Claude Thouret and two anonymous reviewers because their revisions helped to improve the manuscript significantly. Finally, we thank Dr Geraldine McDonalds for her English revision.
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Funding AgencyGrant Number
Spanish Ministerio de Educación y CienciaAP2002-1764
Subject Keywords:Lahar risk map; flow simulation software; geochronological method; Popocatépetl volcano
Issue or Number:3
Record Number:CaltechAUTHORS:20100928-102353111
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100928-102353111
Official Citation:Muñoz-Salinas, E., Castillo-Rodríguez, M., Manea, V., Manea, M. and Palacios, D., 2010: On the geochronological method versus flow simulation software application for lahar risk mapping: a case study of Popocatépetl volcano, Mexico. Geogr. Ann., 92(3): 311–328.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20183
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:28 Sep 2010 19:48
Last Modified:03 Oct 2019 02:06

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