<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><div>You can cross check if your timing is correct independently with something like Taup tool kit. Also, you might be able to use the header OMARKER to double check.</div><div> </div><div style="color:rgb(162, 162, 162);"><font class="Apple-style-span" face="'bookman old style', 'new york', times, serif" size="1"><b><i>_______________</i></b></font></div><div style="color:rgb(162, 162, 162);"><b><font class="Apple-style-span" face="'bookman old style', 'new york', times, serif" size="1"><font style="font-style:italic;">Serenity isn't freedom from the storm, but peace within the storm</font><br></font></b></div> <div style="color: rgb(162, 162, 162); font-family: 'times new roman', 'new york', times, serif; "><font size="1"><b>Januka Attanayake </b></font></div> <div style="color: rgb(162, 162, 162); font-family: 'times new
roman', 'new york', times, serif; "><font class="Apple-style-span" size="1"><b>Earthquake Seismology & Economics<br>The University of Connecticut <br>354, Mansfield Road <br>Storrs, CT 06269-2045<br></b><b>Tel:</b><b><span style="font-weight:normal;"> 860 486 3914 (Lab - P405)</span><br></b></font></div> <div style="color: rgb(134, 135, 164); font-family: 'times new roman', 'new york', times, serif; "><font size="1"><span style="color:rgb(139, 139, 139);"><font class="Apple-style-span">Home page: </font><font class="Apple-style-span"><a rel="nofollow" target="_blank" href="http://sites.google.com/site/janukaattanayake/">http://sites.google.com/site/janukaattanayake/</a></font></span></font></div><div><font class="Apple-style-span" color="#8b8b8b" face="'bookman old style', 'new york', times, serif" size="1"><span style="font-family: 'times new roman', 'new york', times, serif; ">Research group: </span><a rel="nofollow"
style="font-family: 'times new roman', 'new york', times, serif; " target="_blank" href="http://www.phys.uconn.edu/research/geophysics/index.html">http://www.phys.uconn.edu/research/geophysics/index.html</a><b><br></b></font><div style="color: rgb(134, 135, 164); font-family: times, serif; "><font class="Apple-style-span" color="#a2a2a2"><br></font><br><br><br><br></div></div><div><br></div><div style="font-size: 10pt; font-family: arial, helvetica, sans-serif; "><div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "><font size="2" face="Arial"><hr size="1"><b><span style="font-weight:bold;">From:</span></b> Abhash Kumar <abhash.kumar84@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> "sac-help@iris.washington.edu" <sac-help@iris.washington.edu><br><b><span style="font-weight: bold;">Sent:</span></b> Friday, September 23, 2011 7:00 PM<br><b><span style="font-weight: bold;">Subject:</span></b>
[SAC-HELP] Fwd: Phase picking<br></font><br><div id="yiv1585145625"><div><br><br>Sent from my iPhone</div><div><br>Begin forwarded message:<br><br></div><blockquote type="cite"><div><b>From:</b> akumar <<a rel="nofollow" ymailto="mailto:abhash.kumar84@gmail.com" target="_blank" href="mailto:abhash.kumar84@gmail.com">abhash.kumar84@gmail.com</a>><br><b>Date:</b> September 23, 2011 4:27:08 PM EDT<br><b>To:</b> <a rel="nofollow" ymailto="mailto:sac-help@iris.washington.edu" target="_blank" href="mailto:sac-help@iris.washington.edu"></a><a rel="nofollow" ymailto="mailto:sac-help@iris.washington.edu" target="_blank" href="mailto:sac-help@iris.washington.edu">sac-help@iris.washington.edu</a><br><b>Subject:</b> <b>Phase picking</b><br><br></div></blockquote><blockquote type="cite"><div><span>Hi,</span><br><span> I am using SAC to pick events on vertical component and then using rot command to rotate east and north to radial and
transverse. I have picked P-wave arrival on vertical component and it has generated a time marker at 305.45 seconds from the reference time. For S-wave, I have used transverse component and the time marker is at 269.67 seconds, which is less than P-wave arrival time. I looked into header file and it says that B value for vertical component is 0.00second but for transverse it is -67.00 seconds and adding this time to S-wave time marker gives time of 336.67 seconds, which is more than P-wave arrival time. I was wondering, do I need to add this B value to the S-wave time marker in the header file, otherwise when I will be extracting the data at later stage then it will show the discrepancy of S-wave travel time less than P-wave travel time. I would really appreciate any kind of suggestion.</span><br><span></span><br><span>Thanks</span><br><span>Abhash Kumar</span><br><span>University of North Carolina at chapel
hill</span><br><span>NC</span></div></blockquote></div><br>_______________________________________________<br>sac-help mailing list<br><a ymailto="mailto:sac-help@iris.washington.edu" href="mailto:sac-help@iris.washington.edu">sac-help@iris.washington.edu</a><br><a href="http://www.iris.washington.edu/mailman/listinfo/sac-help" target="_blank">http://www.iris.washington.edu/mailman/listinfo/sac-help</a><br><br><br></div></div></div></body></html>