OpenQuake 0.1 Risk Input

The Risk input encompasses three sub sets of data depending of the type of assessment (one or many-event based calculations). For both cases, a discrete vulnerability model and an exposure portfolio are necessary. Regarding the third sub set of data (seismic hazard), if only one earthquake is being considered, it is necessary to provide a ground motion field. In another hand, if all the possible seismic events that may occurs within a certain time span are being considered, then probability mass functions or sets of ground motion fields can be used.

Notes

• Assumptions

  • The Hazard engine is able to produce the required components, and their parameters are defined.
  • The required components are in an acceptable nrml format.

• Design

This design proposes four components set of ground motion fields (GMF), probability mass functions, discrete vulnerability functions and exposure portfolios.

• User stories:

  • Add support for input of assets contained in portfolios/gridded files.
  • Add support for input of vulnerability functions (XML).
  • Create the portfolio of assets xml file for Los Angeles.
  • Save stochastic event set + ground motion field calculation results to memcached.
  • Write parser to read GMF(s).

• Suggested Implementation

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