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NORSAR

ICG

University of Alicante

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RISe - Risk Illustrator for SELENA

RISe is a stand-alone tool that was developed in order to allow an easy conversion of the geo-referenced SELENA input and output files into Google Earth kml-files. Further, RISe facilitates an easier generation of input files for SELENA, the open source risk and loss computation tool developed by NORSAR. The motivation for developing RISe was to also provide the user with a free GIS to allow the illustration of all geo-referenced SELENA files. In addition to a large variety of commercial Geographic Information Systems (e.g., ArcGIS, ArcView, MapInfo etc.) a number of open-GIS programs are also available (e.g., GRASS GIS, ILWIS, GMT). Even though all of the latter group are powerful tools it is believed that Google Earth is the most prevailing GIS even providing satellite images of almost every built environment in the world.

Basic Features

The current version of RISe disposes of three different main features which will be called by the user before, during and after the SELENA risk computation: Figure 1 illustrates the main menu of RISe with the three main features on the left toolbar.

RISe main menu

Figure 1. Main menu of RISe with the main toolbar on the left margin.

Illustration types

RISe comprises of different illustration types, i.e. the way the SELENA results are plotted. Since especially damage results are somehow difficult to be plotted on a single color-shaded map (Figure 2), alternative illustration types such as ‘bar chart’ plots (Figure 3, Figure 4) are included, which allow the depiction of the damage results for the five different damage states in each geographical unit.

numbuild.kml

Figure 2. Mapping type I: Color-shaded plot. For each geographical unit, a single data type can be plotted, e.g., soil class information, ground motion values, share of a certain building typology of the total number of buildings.

occupancy.kml

Figure 3. Mapping type II: Normalized bar-chart plot. Mapping type to illustrate e.g. shares of occupancy types or damage probabilities for the different damage states. The heights of the column are identical and represent 100 % of the respective parameter.

medianct.kml

Figure 4. Mapping type III: Absolute bar-chart plot. Mapping type to illustrate absolute values of risk and loss results. The heights of the columns are different and represent the amount of damage, economic loss or casualties in the respective geographical unit.

21.09.2010 - dhl