contents

Depth Phase Depth Calculation

Once a solution has converged for a given event an attempt is made to calculate a depth phase depth for that event using the differences in arrival time between pairs of P and pP phases at the same station (calc_depdp).  It is also possible for the operator to give the fix_on_depdp instruction and do this calculation at the start of each iteration, using the resulting depth as a fixed depth for that iteration.  In this case the depth and depth phase depth for a solution will be the same unless the depth phase depth is changed by the final calculation done for all events - very unlikely as the solution and depth phase depth have already been through several iterations together.



Each phase structure has 4 members related to depth phase depth calculation:


The solution structure has 2 members related to depth phase depth calculation:


The event structure has 1 member related to depth phase depth calculation: