World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Gis-based Debris Flow Source and Runout Susceptibility Assessment from Dem Data – a Case Study in NW Nicaragua : Volume 7, Issue 6 (26/11/2007)

By Guinau, M.

Click here to view

Book Id: WPLBN0003991834
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: Gis-based Debris Flow Source and Runout Susceptibility Assessment from Dem Data – a Case Study in NW Nicaragua : Volume 7, Issue 6 (26/11/2007)  
Author: Guinau, M.
Volume: Vol. 7, Issue 6
Language: English
Subject: Science, Natural, Hazards
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2007
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Vilaplana, J. M., Vilajosana, I., & Guinau, M. (2007). Gis-based Debris Flow Source and Runout Susceptibility Assessment from Dem Data – a Case Study in NW Nicaragua : Volume 7, Issue 6 (26/11/2007). Retrieved from http://www.ebooklibrary.org/


Description
Description: RISKNAT Research Group, Departament de Geodinàmica i Geofísica, Facultat de Geologia, Universitat de Barcelona, Zona Universitària de Pedralbes, 08028, Barcelona, Spain. In October 1998, Hurricane Mitch triggered numerous landslides (mainly debris flows) in Honduras and Nicaragua, resulting in a high death toll and in considerable damage to property. The potential application of relatively simple and affordable spatial prediction models for landslide hazard mapping in developing countries was studied. Our attention was focused on a region in NW Nicaragua, one of the most severely hit places during the Mitch event.

A landslide map was obtained at 1:10 000 scale in a Geographic Information System (GIS) environment from the interpretation of aerial photographs and detailed field work. In this map the terrain failure zones were distinguished from the areas within the reach of the mobilized materials. A Digital Elevation Model (DEM) with 20 m×20 m of pixel size was also employed in the study area.

A comparative analysis of the terrain failures caused by Hurricane Mitch and a selection of 4 terrain factors extracted from the DEM which, contributed to the terrain instability, was carried out. Land propensity to failure was determined with the aid of a bivariate analysis and GIS tools in a terrain failure susceptibility map. In order to estimate the areas that could be affected by the path or deposition of the mobilized materials, we considered the fact that under intense rainfall events debris flows tend to travel long distances following the maximum slope and merging with the drainage network. Using the TauDEM extension for ArcGIS software we generated automatically flow lines following the maximum slope in the DEM starting from the areas prone to failure in the terrain failure susceptibility map. The areas crossed by the flow lines from each terrain failure susceptibility class correspond to the runout susceptibility classes represented in a runout susceptibility map.

The study of terrain failure and runout susceptibility enabled us to obtain a spatial prediction for landslides, which could contribute to landslide risk mitigation.


Summary
GIS-based debris flow source and runout susceptibility assessment from DEM data – a case study in NW Nicaragua

Excerpt
Corominas, J.: The angle of reach as a mobility index for small and large landslides, Can. Geotech. J., 33, 260–271, 1996.; Ayalew, L., Yamagishi, H., and Ugawa, N.: Landslide susceptibility mapping using GIS-based weighted linear combination, the case in Tsugawa area of Agano River, Niigata Prefecture, Japa. Landslides, 1, 73–81, 2004.; Ayalew, L., Yamagishi, H., Marui, H., and Kanno, T.: Landslides in Sado Island of Japan: Part II. GIS-based susceptibility mapping with comparison of results from two methods and verifications, Eng. Geol., 81, 432–445, 2005.; Baeza, C. and Corominas, J.: Assessment of shallow landslide susceptibility by means of multivariate statistical techniques, Earth Surf. Proc. Land., 26, 1251–1263, 2001.; Bathurst, J. C., Burton, A., and Ward, T. J.: Debris flow run-out and landslide sediment delivery model tests, J. Hydraul. Eng., 123, 410–419, 1997.; Begueria, S.: Validation and evaluation of predictive models in hazard assessment and risk management, Nat. Hazards, 37, 315–329, 2006.; Chung, C. F. and Fabbri, A. G.: Validation of spatial prediction Models for Landslide Hazard Mapping, Nat. Hazards, 30, 451–472, 2003.; Carrara, A., Cardinali, M., Guzzetti, F., and Reichenbach, P.: GIS Technology in Mapping Landslide Hazard, in: Geographical Information Systems in Assessing Natural Hazards, edited by: Carrara, A. and Guzzetti, F., Academic Pub., Dordrecht, the Netherlands, 360 pp., 1995.; Chung, C. F. and Fabbri, A. G.: Systematic procedures of landslide hazard mapping for risk assessment using spatial prediction models, in: Landslide Risk Assessment, edited by: Glade, T., Anderson, M. G., and Crozier, M. J., John Wiley, 139–174, 2005.; Coe, J. A., Godt, J. W., Baum, R. L., Bucknam, R. C., and Michael, J. A.: Landslide susceptibility from topography in Guatemala, in: Landslides: Evaluation and stabilization, edited by: Lacerda, W. A., Ehrlich, M., Fontura, S. A. B., Sayao, A. S. F., Taylor & Francis Group, London, 1, 69–78, 2004.; Corominas, J., Copons, R., Vilaplana, J. M., Altimir, J., and Amigó, J.: Integrated landslide susceptibility analysis and hazard assessment in the Principality of Andorra, Nat. Hazards, 30, 421–435, 2003.; Dai, F. C. and Lee, C. F.: Landslide characteristics and slope instability modelling using GIS, Lantau Island, Hong Kong, Geomorphology, 42, 213–228, 2002.; Dai, F. C., Lee, C. F., and Ngai, Y. Y.: Landslide risk assessment and management: an overview, Eng. Geol., 64, 65–87, 2002.; Darce, M., Levi, B., Nyström, J. O., and Tro\eng, B.: Alteration patterns in volcanic rocks within an east-west transverse through central Nicaragua, J. S. Am. Earth Sci., 2, 155–161, 1989.; Duque, A., Echevarría, G., Kerejeta, A., Cendrero, A., and Tamés, P.: Comprobación empírica de metodologías para la elaboración de mapas de amenaza de inestabilidad de laderas; aproximación a un modelo general de evaluación del riesgo, in: Environmental geology and natural hazards in the Andean region, edited by: Hermelin, M., AGID Report no 13, Pereira, Colombia, 189–206, 1990.; Ehrenborg, J.: A new estratigraphy for the Tertiary volcanic rocks of the Nicaraguan Highland, GSA Bull., 108, 830–842, 1996.; Fabbri, A., Chung, C. F., Cendrero, A., and Remondo, J.: Is prediction of future landslides possible with a GIS?, Nat. Hazards, 30, 487–499, 2003.; Fenzl, N.: Nicaragua, Geografía, Clima, Geología y Hidrogeología. UFPA/INETER/INAN, Belem (Eds). 62 pp., 1988.; Fernández, T., Irigaray, C., El Hamdouni, R., and Chacón, J.: Methodology for landslide susceptibility mapping by means of a GIS. Application to the Contraviesa Area (Granada, Spain), Nat. Hazards, 30, 297–308, 2003.; Guinau, M., Pallàs, R., and Vilaplana, J. M.: A feasible methodology for landslide susceptibility assessment in developing countries: A case-study of NW Nicaragua after

 

Click To View

Additional Books


  • Simulation of the Erosion Process of Lan... (by )
  • Recent Changes in Rainfall Characteristi... (by )
  • Flood Warnings in Coastal Areas: How Do ... (by )
  • Dynamic Risk Simulation to Assess Natura... (by )
  • Three Variables Are Better Than One: Det... (by )
  • Deformation Analysis with Total Least Sq... (by )
  • An Artificial Neural Network Application... (by )
  • Sensitivity of the Adjoint Method in the... (by )
  • Seismic Risk Mapping for Germany : Volum... (by )
  • Preface Progress in Landslide Hazard and... (by )
  • Underlying Mechanism of Precursory Activ... (by )
  • An Observational and Numerical Study of ... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.