# Earthworm Modules:
Coda Dur Overview

(last revised 25 October, 2012)

This program reads picks and coda avg absolute values (aav) and then determines the coda duration for each pick. The program was decoupled from pick_ew so that picks and coda can potentially be produced from differently-processed waveform streams of a given SCNL.

Coda_dur only processes SCNLs listed in the pick_ew station list with pick_flag=1, and it uses these parameters:

             Old name   New name
             --------   --------
                c7      CodaTerm
                c8      AltCoda
                c9      PreEvent

For more discussion of codas, see: pick_ew.scale-factors.txt

Module Index | Coda_dur Commands