minCoda
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Mitchell M Withers (mwithers)
Mar 20, 2023, 11:57:48 AM3/20/23
to Earthworm Community Forum
I'm running earthworm 7.10 on a linux box with the usual pick_ew/binder/eqproc. We're getting coda picks that are shorter than the MinCodaLen param (aka i9). Ours is set to 3 but you can see in the attached image from our duty review page that we're getting coda's less than that (total length in the plot is 64s so each minor tick is 1 s). I thought picks were supposed to be thrown out if the coda pick is less than i9 and yet it clearly is not. Does anyone know why this might happen?
Mitch
Interim Director
Center for Earthquake Research and Information (CERI)
University of Memphis
Memphis, TN 38152
901-678-4940
Dietz, Lynn D
Mar 20, 2023, 12:46:04 PM3/20/23
to earthwo...@googlegroups.com
Are you running pick_ew with "NoCoda 1" ? If so, pick_ew spits out the pick without waiting to see how long its coda is. And then the coda would be produced by coda_aav/coda_dur.
I can't quite remember the logic in coda_dur (that was a decade ago), but it makes sense that it would ignomre the minimum coda length and spit out any duration coda for a pick it was working on, rather than have a coda-less pick floating around, slowing down
eqassemble with "waiting for coda" mode.
From: earthwo...@googlegroups.com <earthwo...@googlegroups.com> on behalf of Mitchell M Withers (mwithers) <mwit...@memphis.edu>
Sent: Monday, March 20, 2023 8:57 AM
To: Earthworm Community Forum <earthwo...@googlegroups.com>
Subject: [EXTERNAL] [Earthworm Forum] minCoda
Sent: Monday, March 20, 2023 8:57 AM
To: Earthworm Community Forum <earthwo...@googlegroups.com>
Subject: [EXTERNAL] [Earthworm Forum] minCoda
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Mitchell M Withers (mwithers)
Mar 20, 2023, 12:56:43 PM3/20/23
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I have no NoCoda param so the default should be that feature is off. Here are my picker params.
MyModId MOD_PICK_EW # This instance of pick_ew
StaFile "pick/pick_ew.memphis" # File containing station name/pin# info
InRing SCNL_RING # Transport ring to find waveform data on,
OutRing PICK_RING # Transport ring to write output to,
HeartbeatInt 30 # Heartbeat interval, in seconds,
RestartLength 100 # Number of samples to process for restart
MaxGap 15 # Maximum gap to interpolate
Debug 0 # If 1, print debugging message
GetLogo INST_WILDCARD MOD_WILDCARD TYPE_TRACEBUF2
Mitch
Interim Director
Center for Earthquake Research and Information (CERI)
University of Memphis
Memphis, TN 38152
901-678-4940
From: 'Dietz, Lynn D' via Earthworm Community Forum <earthwo...@googlegroups.com>
Sent: Monday, March 20, 2023 11:45 AM
To: earthwo...@googlegroups.com
Subject: Re: [EXTERNAL] [Earthworm Forum] minCoda
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Are you running pick_ew with "NoCoda 1" ? If so, pick_ew spits out the pick without waiting to see how long its coda is. And then the coda would be produced by coda_aav/coda_dur.
I can't quite remember the logic in coda_dur (that was a decade ago), but it makes sense that it would ignomre the minimum coda length and spit out any duration coda for a pick it was working on, rather than have a coda-less pick floating around, slowing down eqassemble with "waiting for coda" mode.
________________________________
From: earthwo...@googlegroups.com <earthwo...@googlegroups.com> on behalf of Mitchell M Withers (mwithers) <mwit...@memphis.edu>
Sent: Monday, March 20, 2023 8:57 AM
To: Earthworm Community Forum <earthwo...@googlegroups.com>
Subject: [EXTERNAL] [Earthworm Forum] minCoda
I'm running earthworm 7.10 on a linux box with the usual pick_ew/binder/eqproc. We're getting coda picks that are shorter than the MinCodaLen param (aka i9). Ours is set to 3 but you can see in the attached image from our duty review page that we're getting coda's less than that (total length in the plot is 64s so each minor tick is 1 s). I thought picks were supposed to be thrown out if the coda pick is less than i9 and yet it clearly is not. Does anyone know why this might happen?
Mitch
Interim Director
Center for Earthquake Research and Information (CERI)
University of Memphis
Memphis, TN 38152
901-678-4940
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Mitchell M Withers (mwithers)
Mar 21, 2023, 1:51:58 PM3/21/23
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Well it turns out that I can't count column numbers. Column 12 that contains the i9 value was set to 0 not 3 so it was behaving as configured.
Mitch
Interim Director
Center for Earthquake Research and Information (CERI)
University of Memphis
Memphis, TN 38152
901-678-4940
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From: earthwo...@googlegroups.com <earthwo...@googlegroups.com> on behalf of Mitchell M Withers (mwithers) <mwit...@memphis.edu>
Sent: Monday, March 20, 2023 11:56 AM
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