Next Article in Journal / Special Issue
Remote Sensing and Geodetic Measurements for Volcanic Slope Monitoring: Surface Variations Measured at Northern Flank of La Fossa Cone (Vulcano Island, Italy)
Previous Article in Journal
Exploring the Potential for Automatic Extraction of Vegetation Phenological Metrics from Traffic Webcams
Previous Article in Special Issue
Persistent Scatterer Interferometry (PSI) Technique for Landslide Characterization and Monitoring
Open AccessArticle

Combining Spatial Models for Shallow Landslides and Debris-Flows Prediction

Spatial Information System Laboratory, Department of Geography, University of Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília-FD, 70910-900, Brazil
Department of Geography, Universidade Federal do Rio de Janeiro, Cidade Universitária, CCMN, Ilha do Fundão, Rio de Janeiro-RJ, 21941-570, Brazil
Department of Civil Engineering, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Gávea, Rio de Janeiro-RJ, 22451-900, Brazil
Author to whom correspondence should be addressed.
Remote Sens. 2013, 5(5), 2219-2237;
Received: 20 March 2013 / Revised: 16 April 2013 / Accepted: 16 April 2013 / Published: 10 May 2013
Mass movements in Brazil are common phenomena, especially during strong rainfall events that occur frequently in the summer season. These phenomena cause losses of lives and serious damage to roads, bridges, and properties. Moreover, the illegal occupation by slums on the slopes around the cities intensifies the effect of the mass movement. This study aimed to develop a methodology that combines models of shallow landslides and debris-flows in order to create a map with landslides initiation and debris-flows volume and runout distance. The study area comprised of two catchments in Rio de Janeiro city: Quitite and Papagaio that drained side by side the west flank of the Maciço da Tijuca, with an area of 5 km2. The method included the following steps: (a) location of the susceptible areas to landslides using SHALSTAB model; (b) determination of rheological parameters of debris-flow from the back-analysis technique; and (c) combination of SHALSTAB and FLO-2D models to delineate the areas more susceptible to mass movements. These scenarios were compared with the landslide and debris-flow event of February 1996. Many FLO-2D simulations were exhaustively made to estimate the rheological parameters from the back-analysis technique. Those rheological coefficients of single simulation were back-calculated by adjusting with area and depth of the debris-flow obtained from field data. The initial material volume in the FLO-2D simulations was estimated from SHALSTAB model. The combination of these two mathematical models, SHALSTAB and FLO-2D, was able to predict both landslides and debris-flow events. Such procedures can reduce the casualties and property damage, delineating hazard areas, to estimate hazard intensities for input into risk studies providing information for public policy and planning. View Full-Text
Keywords: hazard; mass movements; mathematical modeling; back-analysis; two-dimensional models hazard; mass movements; mathematical modeling; back-analysis; two-dimensional models
MDPI and ACS Style

Gomes, R.A.T.; Guimarães, R.F.; De Carvalho, Júnior, O.A.; Fernandes, N.F.; Do Amaral Júnior, E.V. Combining Spatial Models for Shallow Landslides and Debris-Flows Prediction. Remote Sens. 2013, 5, 2219-2237.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Back to TopTop