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"Scientific" Improvements


FunctionalityTo be included in this versionMight be includedNot this version
Velocity Model




Basin Modeling

Add high priority basins

VM

DEM extent increase




VMVM Size decreased based on depth of rupture - sim duration changed to account for surface arrival times

Tectonics




Subduction
Subduction Interface simulations - pending validation
Simulation Method




SRFgen improvements for shallow crustal earthquakes from validationPrelim validation needs to be done

LF




200m simulation realisationsFor selected faults only

HF




Using Target dx/dy (stoch file more aligned with srf)for single segment ruptures


HF ScalingHF DT decrease


Scale stoch dx/dy down with area of fault. (when reach X number of subfaults double the dx/dy value)

Sim methodology improvements


Stations




New Non-uniform Grid

Update in Christchurch / Wellington Region

Finer Grid

Real station update

Only land stations in all versions of the grid (ref: Notes on lat,lon <-> x,y conversion)

Similar number of stations

Non Uniform Grid 20.3



Vs30




vs30 improvementsUsing geology only. Modified coastal areas with a distance to coast factor.

Realisations




Additional Realisation Parameters (e.g. Magnitude)

Mw - Stress drop perturbation based on Leonard sigma and correlated together

slip/rake/rise time perturbations come from the seed we pass to genslip

Shypo / Dhypo unchanged from last version




Change SRF slip seed generationRandomised rather than same sequence

Fault Sources




ERF
Create custom ERF for cybershake run

Fault size roundingNearest 0.5k / 0.1k






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