Week Six

July 24th, 2010

This week was full of troubleshooting.  First I had to make a correction in my cross correlation script and rerun it.  There was a problem with some of the stations and my index for pulling out the correct cross correlation was wrong.  The stations that had the main problems were the recently deployed stations that I was supposed to be focusing on.  I had been using "ceil" for rounding in matlab, but then found I needed to use "fix" instead.  I switched it for all the stations and reran it.  This second pass produced more problems, as it ends up matlab decided to round 20.0000 to 19 for all the stations that previously did not have problems.  Not sure why, as it was supposed to round to the nearest integer, but then I had to rerun it again.  This basically took all week because this is the program that takes two days to run.  While I was waiting for it to finish running, I wrote a second cross correlation script, similar to what Brown et al. (2008) used in as their second pass.  I will run this one on the top few hundred high cross correlation values.  This will give me the relative arrival times of tremor at each station, which I will then use to locate the tremor.  I'm hoping I have time to locate the tremor in these last two weeks, along with making the poster for the conference.  It'll be a time crunch.

Next week I get to get out of the office!  Besides the first day, I've been working at my computer.  I love the computational aspect of seismology, but it'll be nice to get outside and help install ten seismometers near campus.  Hopefully it's not too hot though!