Data Requirements¶
This document describes the data requirements of InaSAFE in regard to what inputs are needed to carry out an analysis.
At the highest level InaSAFE will take a hazard layer (such as ground shaking, water depth or ash load) and an exposure layer (such as population density or building footprints) and combine them according to an impact function to produce an impact layer and a report.
Hazard layers¶
The supported hazard layers are:
| Hazard | Spatial type | Hazard type | Attribute name | Hazard units/fields | Parameters |
|---|---|---|---|---|---|
| Volcano | Raster | Ash load | N/A | kg/m^2 | |
| Volcano | Point | Distance from vent | Name | text | Radius [km] |
| Volcano | Polygon | Category | KRB | text | |
| Earthquake | Raster | Shakemap | N/A | MMI | |
| Flood | Raster | Depth | N/A | m | Threshold [m] |
| Flood | Polygon | Wet/Dry | affected | 1/0 | Threshold [%] |
| Tsunami | Raster | Depth | N/A | m | Threshold [m] |
| Cyclone | Raster | Wind speed | N/A | m/s | Category |
Exposure layers¶
| Exposure | Spatial type | Exposure type | Attribute name | Hazard units/fields |
|---|---|---|---|---|
| Population | Raster | Density | N/A | People per pixel |
| Structures | Point | Structure type | type | text |
| Structures | Polygon | Structure type | type | text |
| Roads | Polyline | Road type | type | text |
| Land cover | Polygon | Land cover type | type | text |