[SAC-HELP] ASCII to SAC

[Pierre Arroucau]

Dear Manuka,

Again the most convenient way I've found to perform conversions between ascii and binary sacfiles is to use the subroutines contained in the module sac_i_o that comes with the fortran program sac2xy and that you can download from the following webpage :

http://web.utah.edu/thorne/software.html

Regards,
Pierre
 

----- Original Message -----
From: Januka Attanayake <jattanayake at gmail.com>
Date: Wednesday, November 4, 2009 3:53 pm
Subject: [SAC-HELP] ASCII to SAC
To: sac-help at iris.washington.edu

> Hello everyone, 
> I have a time series of synthetic traces and would like to convert them to SAC format. I know I could use the CONVERT function but before that I have to format the ASCII (time series) file by arranging the values for sac header. Is there a utility to do this pre-formatting before I could use the CONVERT function? 
>  ex. I believe my ASCII file should look like the following before using CONVERT >          0.125      -7441.313       4087.937              1         -12345
>       -12.73499       4.265015      -1145.083     -0.7329407              2
>        -7.154175      -11.04712      -5.158936         -12345         -12345
>          -12345         -12345         -12345         -12345         -12345
>          -12345         -12345         -12345         -12345         -12345
>           -12345         -12345         -12345         -12345         -12345
>          -12345       49.69189       11.22172          499.5              0
>          -18.58       -177.847         -12345         406800            6.3
>         153.6304       92.23995       118.4234         -12345         -12345
>          -12345         -12345         -12345         -12345         -12345
>        16459.75       348.8256       16.44247       148.1168         -12345
>           -12345       11.20899              0              0         -12345
>          -12345         -12345         -12345         -12345         -12345
>          -12345         -12345         -12345         -12345         -12345
>        2007         8        21        11        25
>        723         6         0         0       137
>     -12345         3    -12345    -12345    -12345
>          1         7    -12345    -12345    -12345
>     -12345    -12345    -12345    -12345    -12345
>      -12345    -12345    -12345    -12345    -12345
>     -12345    -12345    -12345    -12345    -12345
>          1         0         1         1         0
> GRA1     -12345          
>         -12345          
> PKP     PKIKP   PKiKP   
>  -12345  -12345  -12345  
> -12345  -12345  -12345  
> -12345  -12345  -12345  
> -12345  -12345  BHZ     
> GR      -12345  -12345  
>       -187.3201      -188.5614       -217.869      -206.1952      -207.0166
>       -215.3447      -195.2354      -180.3634      -132.7042      -73.69939
>        -41.64182       20.88158       27.19209       49.59732       147.0182
>          84.607       63.40969       54.25536       80.00433       81.05703
>        88.90465         90.763       85.95925       49.39476       22.92792
>        -49.27525      -137.7821      -148.9169      -235.7549      -260.8252
>       -287.5518       -289.338      -262.7619      -247.1613      -195.9543
>        -143.929      -87.96223      -55.86754       42.96152       41.11675
>         88.47706       110.7524       203.3549       248.1527        288.513
>        289.4476       425.0559       414.4856       489.2326       529.2755
>        708.3331       979.9971       1099.924       1216.979       1358.369
 > 
> I am not sure how I could get the values related to sac header organized (a program?). Any ideas?
> 
> Thank you very much. 
> 
> Januka.
> -- 
> "Nothing can start to exist nor can cease to exist, only transformation is possible"
 > 
> Januka Attanayake
> Solid Earth Geophysics & Economics
> University of Connecticut
> Beach Hall   U-2045
> 354,Mansfield Rd;
> Storrs.CT 06269
> 
> Tel: 1 860 486 0475
> URL: http://sites.google.com/site/janukaattanayake/
 > 
 > _______________________________________________
> sac-help mailing list
> sac-help at iris.washington.edu
> http://www.iris.washington.edu/mailman/listinfo/sac-help
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