Tools

LAND-deFeND database structure

“LANDslides and Floods National Database” (LAND-deFeND) is a new database structure able to store, organize and manage in a single digital structure spatial information on historical landslides and floods – collectively called “geo-hydrological hazards" - collected with different accuracy from various sources. [by Ivan Marchesini, Elisabetta Napolitano, Paola Salvati, Marco Donnini (IRPI, Perugia)]

TRIGRS - A Fortran Program for Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Analysis, Version 2.1

This is a parallel implementation of TRIGRS, the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model for the timing and distribution of rainfall-induced shallow landslides. The saturated and unsaturated model with finite and infinite soil depth options are parallelized in the framework of the Message Passing Interface. In addition, the code contains new features and bug fixes, with respect to version 2.0. [by Massimiliano Alvioli (IRPI, Perugia) and Rex Baum (USGS, Golden) | see also Alvioli, M. and Baum, R. L., (2016). Parallelization of the TRIGRS model using the message passing interface. Environ. Model. Softw. 81, 122-135. doi:10.1016/j.envsoft.2016.04.002]

Slope Units Delineation

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  Slope-units (SU) are a special type of terrain units bounded by drainage and divide lines that prove particularly well suited for landslide susceptibility modelling (LS) and associated terrain zonations.
  We provide the new r.slopeunits software for the automatic delineation of SU.
  The software, written mainly in the Python language for GRASS GIS 7.0, automates the process of delineating SU, given a DEM and a set of user-defined input parameters. (by Ivan Marchesini and Massimiliano Alvioli)
   

Rainfall events and landslides thresholds

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  Tools for the reconstruction of rainfall events from records of rainfall measurements, for the definition of the rainfall conditions responsible for landslides, and for the definition of rainfall thresholds for possible landslide occurrence (by Massimo Melillo)

Landslide susceptibility assessment

•  A script for the R free software environment for statistical computing (http://www.r-project.org/) to perform single and combined, statistical assessments of landslide susceptibility, and related zonations (by Mauro Rossi)

•  TRIGR-S: A modified version of the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Analysis (TRIGRS) code, version 2.0, originally prepared by the U.S. Geological Survey and available @ http://pubs.usgs.gov/of/2008/1159/. The new code (TRIGRS-S) uses a stochastic approach to compute, on a cell-by-cell basis, transient pore-pressure changes, and related changes in the factor of safety due to rainfall infiltration (by Salvatore Raia & Massimiliano Alvioli)

•  A map showing non-susceptible landslide areas in Italy and in the Mediterranean Region (by Ivan Marchesini and others)

Statistical treatment of fatality data

•  Zeta distribution modelling of fatalities caused by landslides and floods (by Colin P. Stark)

•  A script for the R free software environment for statistical computing (http://www.r-project.org/) to perform the statistical analysis of fatality data (by Mauro Rossi)
  

Statistical treatment of landslide sizes

•  A script for the R free software environment for statistical computing (http://www.r-project.org/) to determine the PDF of landslide size (by Mauro Rossi)

GIS and interpretation of aerial photographs

•  Some GRASS GIS Python scripts for (i) generating a bedding attitude layer starting from a bedding trace layer and a DEM, and (ii) for interpolating bedding attitude data and obtaining a morpho-structural layer (cataclinal, anaclinal, orthoclinal slopes) - (by Ivan Marchesini)

ICL Landslide Teaching Tools

•  We have contributed to the ICL Landslide Teaching Tools, edited by Kyoji Sassa, Bin He, Mauri McSaveney, Osamu Nagai, and published by ICL & UNESCO [ISBN: 978-4-9903382-2-0].

Others

•  Tools, tutorials and materials, made available by Bruce D. Malamud

•  Elevation box plot analysis in the Collazzone area

Geostat 2010 Materials

•  Sample data Geostat 2010 cvs

•  Sample data Geostat 2010 shapefile

r.sim.road

•  A GRASS GIS python code developed to alter a DEM according to the presence of a road network. The roads are dug into the DEM (typically having a resolution of 5 to 10 meters) - (by Ivan Marchesini)

   

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  Chi sta in ma naviga, chi sta a tera zudega.
  (proverbio ligure)

   

  A lot of times, people don’t know what they want until you show it to them.
  (Steve Jobs, 12 May 1998)