NHLIB: allow gmf calculation with GMPEs that provide only total standard deviation
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
OpenQuake (deprecated) |
Fix Released
|
Medium
|
Lars Butler |
Bug Description
Currently, the ground motion field calculator (https:/
However some GMPEs or IPEs may provide only total standard deviation (see https:/
We need to modify the workflow within the GMF calculator in order to cope with this situation.
So if a GSIM provides only total standard deviation then, the correlation model must be None (because it's not used) and we need to compute only mean and total standard deviation at the sites of interest, that is:
mean, [stddev_total] = gsim.get_
sctx, rctx, dctx, imt, [StdDev.TOTAL]
)
we can then compute the total residual:
and then compute the gmf as:
gmf = gsim.to_
In case of a gsim that provides both inter and intra event standard deviations the workflow remains unchanged.
tags: | added: hazard nhlibi |
Changed in openquake: | |
assignee: | nobody → Muharem Hrnjadovic (al-maisan) |
milestone: | none → 0.8.4 |
importance: | Undecided → Medium |
status: | New → In Progress |
Changed in openquake: | |
status: | In Progress → Confirmed |
assignee: | Muharem Hrnjadovic (al-maisan) → nobody |
Changed in openquake: | |
assignee: | nobody → Lars Butler (lars-butler) |
Changed in openquake: | |
status: | Confirmed → In Progress |
status: | In Progress → Fix Committed |
Changed in openquake: | |
status: | Fix Committed → Fix Released |
Patch: https:/ /github. com/gem/ nhlib/pull/ 72