Thread: Help Needed

Sachim,

You can do these steps:

sac> cut -5 3
sac> r file_to_cut
sac> w file_cutted
sac> cut off
sac> r file_cutted
sac> lh

the variable depmax give you the max value in the range -5 3 s.

HTH,

M.

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Milton P. PLASENCIA LINARES

Centro di Ricerche Sismologiche (CRS)
OGS - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale

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(34010) Sgonico - Trieste - Italia
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On 2 May 2018 at 11:40, Sachin Tiwari <sachinism15<at>gmail.com> wrote:

Dear Friends,

I am looking for your help very urgently. I have a time series with trace
length ranging from -10 seconds to 50 seconds. I need to find the maximum
amplitude value and its index between -5 seconds to 3 seconds.

Please let me know how to perform this operation in SAC. Your help in this
regards will highly be appreciated.

Regards,

--
*Sachin Kumar *
*Junior Research Fellow (JRF)*
*Dept. of Applied Geophysics*
*Indian Institute of Technology (Indian School of Mines), Dhanbad*
*Jharkhand- 826004, India.*

*Mobile No.:+91-7631056163*
*Email : *
*sachinism15<at>gmail.com , <sachinism15<at>gmail.com> ismsachin<at>outlook.com
<sachinism15<at>gmail.com>*


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Dear All -

Another option is to use the MARKPTP command, which puts the min and max trace values into header variables T0 and T1 (default; may be changed):

MTW -5 3
MARKPTP
MESSAGE “Min is &1,t0&, Max is &1,t1&”

See the command documentation for further features.

On 2 May 2018, at 18:40, Sachin Tiwari <sachinism15<at>gmail.com> wrote:

Dear Friends,

I am looking for your help very urgently. I have a time series with trace length ranging from -10 seconds to 50 seconds. I need to find the maximum amplitude value and its index between -5 seconds to 3 seconds.

Please let me know how to perform this operation in SAC. Your help in this regards will highly be appreciated.

Regards,

--
Sachin Kumar
Junior Research Fellow (JRF)
Dept. of Applied Geophysics
Indian Institute of Technology (Indian School of Mines), Dhanbad
Jharkhand- 826004, India.
Mobile No.:+91-7631056163
Email : sachinism15<at>gmail.com , ismsachin<at>outlook.com

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George Helffrich
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