A pragmatic approach to debris flow hazard mapping in areas affected by Hurricane Mitch: example from NW Nicaragua

Pallàs, Raimón; Vilaplana, Joan Manuel; Guinau, Marta; Falgàs, Ester; Alemany, Xavier; Muñoz, Angélica

doi:10.1016/j.enggeo.2003.06.002

Cited by 22 publications

(22 citation statements)

References 14 publications

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“…After determining the potential landslide initiation zones, the runout behaviour is analysed in order to delimit zones that could be reached by the mobilized debris. Approaches to assessing the mobility of debris can be empirical, analytical and numerical (Mongomery and Dietrich, 1994;Corominas et al, 2003;Pallàs et al, 2004;Hürlimann et al, 2006).…”

Section: Costa Ricamentioning

confidence: 99%

“…Thus, there is a pressing need for developing feasible and low cost methodologies of landslide hazard assessment, which can be readily tested and implemented under the conditions found in these countries (Pallàs et al, 2004;Coe et al, 2004;Guinau et al, 2005). A number of developing countries, especially in South and Central America and Asia, are currently implementing Geographic Information Systems (GIS) and acquiring digital data, which provide advantages in geoenvironmental analysis.…”

Section: Costa Ricamentioning

confidence: 99%

“…It has been demonstrated that reliable susceptibility maps can be produced by using conditional parameters exclusively derived from a DEM (Remondo et al, 2003b;Fabbri et al, 2003;Santacana et al, 2003;Pallàs et al, 2004;Coe et al, 2004).…”

Section: Selection Extraction and Discretisation Of Instability Factmentioning

confidence: 99%

“…Given the difficulty of characterizing these parameters for future debris flows, it is not easy to determine the runout path and the reach distance. However, this problem can be overcome by taking into account the fact that under intense rainfall debris flows tend to travel long distances following the steepest path and merging with the drainage network (Montgomery and Dietrich, 1994;Pallàs et al, 2004;Guinau et al, 2005). In order to determine the areas that are prone to debris flow, we propose a methodology based on the use of the open source TauDEM software developed by Tarboton (1997), which is available electronically on the Internet from the author (dtarb@cc.usu.edu, http://www.engineering.usu.edu/dtarb/taudem).…”

Section: Runout Susceptibility Analysis Using Taudem Toolsmentioning

confidence: 99%

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

Guinau

Vilajosana

Vilaplana

2007

Nat. Hazards Earth Syst. Sci.

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Abstract. 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.Correspondence to: M. Guinau (mguinau@ub.edu)The study of terrain failure and runout susceptibility enabled us to obtain a spatial prediction for landslides, which could contribute to landslide risk mitigation.

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Section: Costa Ricamentioning

confidence: 99%

Section: Costa Ricamentioning

confidence: 99%

Section: Selection Extraction and Discretisation Of Instability Factmentioning

confidence: 99%

Section: Runout Susceptibility Analysis Using Taudem Toolsmentioning

confidence: 99%

See 2 more Smart Citations

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

Guinau

Vilajosana

Vilaplana

2007

Nat. Hazards Earth Syst. Sci.

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“…After Hürlimann et al (2006) two types of assessment studies on a regional scale and studies on a local scale were conducted. The majority of authors study debris flow hazard on a regional scale with the geographic information system (GIS), in combination with statistical analysis, simple dynamic methods and interpretation of satellite images or aerial photographs (Mark, Ellen, 1995;Iverson et al, 1998;Guzzetti et al, 1999;Hofmeister et al, 2002;Lin et al, 2002;Huggel et al, 2003;Liu, Lei, 2003;Vallance et al, 2003;Pallas et al, 2004). On a local scale, comprehensive field work is necessary to determine the hazard in the debris flows' deposition areas (García et al, 2003;Chau, Lo, 2004;Pasuto, Soldati, 2004).…”

Section: Debris Flow Hazards and Their Relation To Clime Changes And mentioning

confidence: 99%

Impact of Water-Induced Processes on the Development of Tarns and Their Basins in the High Tatras

Tomko-Králo

Hreško

Jakab

2017

Ekológia (Bratislava)

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Tomko-Králo D., Hreško J., Jakab I.: Impact of water-induced processes on development of the tarns and their basins in the High Tatras. Ekológia (Bratislava), Vol. 36, No. 3, p. 247-267, 2017. In the report we concentrate on the influences of water-induced morphodynamic processes and surface flow on the development of tarns in alpine environment conditions of selected valleys in the High Tatras. Model areas are represented by higher basins parts in the Malá Studená valley and the Veľká Studená valley, where we confirmed that slope-gravitational processes in the form of rockfall, water-gravitational processes in the form of debris flows, but also fluvial-proluvial processes as the accumulation of the soft fractions from the area of debris cones take part in the material deposition in the tarns. In this context we focused on the creation of the model of spatial distribution of the water-induced potential of material deposition in drainage tarn basins. The model includes three basic factors: slope and curvature of the relief and land cover character. Map processing with GIS technologies was done on the basis of a 3-D relief model, which allowed the locating of the local erosion bases areas, where the material could be accumulated. The achieved results confirmed the hypothesis that tarn basin development of the alpine environment is subordinated to permanent backfilling as a consequence of the cumulative influence of the several processes connected with rainfall and the runoff regime of the drainage basins.

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Assessment of exposed elements in a changing built environment by using an integrated model of debris flow initiation and runout (Kalimpong region, Himalaya)

Bera

Melo

Guru

2021

Bull Eng Geol Environ

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A pragmatic approach to debris flow hazard mapping in areas affected by Hurricane Mitch: example from NW Nicaragua

Cited by 22 publications

References 14 publications

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

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

Impact of Water-Induced Processes on the Development of Tarns and Their Basins in the High Tatras

Assessment of exposed elements in a changing built environment by using an integrated model of debris flow initiation and runout (Kalimpong region, Himalaya)

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