[Shake-dev] Varying GMPE bias correction parameters

[Nick Horspool]

Hi All

I was wanting to know if there is a way to vary the GMPE bias correction parameters. I would like to set the bias_max_distance parameter to a default value (say 100km), but if the conditions for bias correction is not met, then revert to another value (e.g. 200km). The min_number_stations would be set to a fixed value (e.g. 6). 

The reason for this, is that for most of our events, our network is dense enough to have many stations within 100km to perform bias correction. However, for a small proportion of events our network does not have enough stations within 100km to run the bias correction. We don’t want to default to much more than 100km as we would like to have the near source observations dominating the bias correction. 

Thanks in advance

Nick Horspool
___________________________ 
Nick Horspool 
Natural Hazard Risk Specialist 
Risk and Society Department 
GNS Science 
TE PU AO 
1 Fairway Drive, Avalon, P O Box 30 368, Lower Hutt 5040, New Zealand 
E n.horspool at gns.cri.nz, T +64 4 570 4282, F +64 4 570 4600 
www.gns.cri.nz





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