Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP
This paper presents the evaluation of the parameters sensitivity and the description of translational landslides generation mechanisms using the Stability INdex MAPping (SINMAP) model. This model simulates areas of slope instability in which are likely to occur translational slips based on a variati...
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2020-09-01
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| Online Access: | https://journals.openedition.org/confins/33317 |
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| author | Karen Estefania Moura Bueno Gilson Bauer Schultz Irani dos Santos |
| author_facet | Karen Estefania Moura Bueno Gilson Bauer Schultz Irani dos Santos |
| author_sort | Karen Estefania Moura Bueno |
| collection | DOAJ |
| description | This paper presents the evaluation of the parameters sensitivity and the description of translational landslides generation mechanisms using the Stability INdex MAPping (SINMAP) model. This model simulates areas of slope instability in which are likely to occur translational slips based on a variation of the equation of the factor of safety (FS), which considers the ratio of stabilizing to destabilizing forces of the relief for analyzing the system boundary balance. The simulated area is the Rio Sagrado watershed, located in the Serra do Mar Paranaense, which has slopes with high susceptibility of landslides. The methodology consisted in testing the model performance in different digital elevation model (DEM) resolutions and in the sensitivity analysis of SINMAP’s parameters, which are: the internal friction angle of the soil, T/R and the dimensionless soil cohesion; through values ranges which are established in the model calibration. The results demonstrated that the best DEM resolution for SINMAP simulations is 10m and that the most sensitive parameter is the dimensionless cohesion, which significantly influenced the results of simulations. |
| format | Article |
| id | doaj-art-6316efc77ebf402e90b02124bedce092 |
| institution | Kabale University |
| issn | 1958-9212 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | Confins |
| record_format | Article |
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| spelling | doaj-art-6316efc77ebf402e90b02124bedce0922025-01-13T15:55:17ZengConfinsConfins1958-92122020-09-014710.4000/confins.33317Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAPKaren Estefania Moura BuenoGilson Bauer SchultzIrani dos SantosThis paper presents the evaluation of the parameters sensitivity and the description of translational landslides generation mechanisms using the Stability INdex MAPping (SINMAP) model. This model simulates areas of slope instability in which are likely to occur translational slips based on a variation of the equation of the factor of safety (FS), which considers the ratio of stabilizing to destabilizing forces of the relief for analyzing the system boundary balance. The simulated area is the Rio Sagrado watershed, located in the Serra do Mar Paranaense, which has slopes with high susceptibility of landslides. The methodology consisted in testing the model performance in different digital elevation model (DEM) resolutions and in the sensitivity analysis of SINMAP’s parameters, which are: the internal friction angle of the soil, T/R and the dimensionless soil cohesion; through values ranges which are established in the model calibration. The results demonstrated that the best DEM resolution for SINMAP simulations is 10m and that the most sensitive parameter is the dimensionless cohesion, which significantly influenced the results of simulations.https://journals.openedition.org/confins/33317landslidesSINMAPsensitivity analysisDEM resolution. |
| spellingShingle | Karen Estefania Moura Bueno Gilson Bauer Schultz Irani dos Santos Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP Confins landslides SINMAP sensitivity analysis DEM resolution. |
| title | Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP |
| title_full | Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP |
| title_fullStr | Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP |
| title_full_unstemmed | Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP |
| title_short | Avaliação da sensibilidade dos parâmetros do modelo de simulação de deslizamentos SINMAP |
| title_sort | avaliacao da sensibilidade dos parametros do modelo de simulacao de deslizamentos sinmap |
| topic | landslides SINMAP sensitivity analysis DEM resolution. |
| url | https://journals.openedition.org/confins/33317 |
| work_keys_str_mv | AT karenestefaniamourabueno avaliacaodasensibilidadedosparametrosdomodelodesimulacaodedeslizamentossinmap AT gilsonbauerschultz avaliacaodasensibilidadedosparametrosdomodelodesimulacaodedeslizamentossinmap AT iranidossantos avaliacaodasensibilidadedosparametrosdomodelodesimulacaodedeslizamentossinmap |