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  • IRIS Internship Program - First Weeks at ANU ~ A Sprint
    in the U S and the grocery stores are found in an indoor plaza along with various restaurants and other shops Also being from California I m used to seeing something priced at say 9 99 and having to pay something like 10 78 for it Conveniently here in Canberra the price you see is the price you pay and they even include a rounding on receipts so that all prices are rounded to the nearest 5 cents no pesky pennies Lastly seeing cars driving on the left side of the road has been very tough to adapt to My instincts about which way to look before crossing streets are betraying me and I ve had to stop and think a lot more at intersections to try and figure out where cars are moving yes this has attracted me some stares and looks from drivers When I finally started working on Wednesday we hit the ground sprinting seeing as AGU abstract deadlines are quickly approaching The group that I am working with is quite diverse there actually aren t even any native Australians and there is another intern from India that I am sharing an office with It s more of a computer lab Luckily he already has a masters degree so he has been an invaluable resource when it comes to programming questions The project that I will be working on consists of calculating moment tensor solutions using a Hierarchical Bayesian Inversion on an event in the Geysers geothermal region in California The advantage of this technique is that it creates a model with more realistic parameter uncertainties by factoring in aspects such as noise In order to do this I will be working with a wide variety of computing tools including SAC GMT Matlab Fortran although most of the Fortran codes are already written I just make minor tweaks to them and most importantly UNIX lots and lots of UNIX We have event data in the form of SAC files from 30 stations around Northern California Southern Oregon and my first task has been to compute Signal to Noise ratios for a particular frequency band in these waveforms Since the Bayesian Inversion is computationally intensive we want to narrow down our number of stations to something around 10 so we want to find an ideal combination of stations hence looking at the quality through Signal Noise ratios After computing these ratios and ranking them I then began to play around with different combinations of stations in a linear inversion which is much less computationally demanding I am still running different combinations and trying to find the ideal array in terms of azimuthal distribution we want a good circular spread distance from the event signal quality and quality of fit This phase will likely keep me busy for the upcoming week while I also scramble to write an abstract within the week luckily I m getting lots of help from Marija and Professor Tkalcic on this And here are

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/first_weeks_at_anu_a_sprint (2015-11-11)
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  • IRIS Internship Program - Greetings from Socorro, New Mexico!
    New Mexico May 28th 2015 Ben keeps turning off my numlock it s quite frustrating I m also not used to eating this much food it s a good change from ramen bread and hot dogs Socorro is quite lovely the weather has been nothing short of perfect and it s too bad that I have to go back to school next week although I really can t complain about

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/greetings_from_socorro_new_mexico (2015-11-11)
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  • IRIS Internship Program - Goodbye Austin
    Blogs Shawn Lee Goodbye Austin August 16th 2015 It s been a fantastic summer here at Austin but alas my wonderful time here in the live music capital of the world has come to an end I have learned so much here not just academically but socially as well Living on my own after having to commute every day to go to school was a huge adjustment but I m glad I was able to do it My summer here felt more like real college than my actual freshmen year did It has been an honor to work with my advisor Dr Jake Walter and to work alongside the other undergrad Peter Dotray on Texas earthquakes I am sad to go but I know I will be back in the future either to visit or for grad school It s been an academic challenging physically demanding transformative and most of all fun few months I can t thank IRIS enough for giving me this opportunity applying was one of the best decisions I have made so far in college I can t wait to see everyone in December until then keep it real Austin Comments By Rob on August 21st

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/goodbye_austin (2015-11-11)
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  • IRIS Internship Program - The Long Haul
    with no one around to help Well maybe no one but I don t feel comfortable going around the office asking other researchers to take the time out of their day to help me on something so trivial when my mentor is not present Even when my mentor is around I do not want to give off that appearance of a needy child that can t do anything on its own So over the past few days I have been trudging along slowly getting things done when in the back of my mind I sort of wished I had a grad student working on a similar project that I could ask questions when my professor isn t available Probably my most yay moment so far doesn t even really have to do with my main research at all I plotted a map of seismicity in North Texas in GMT on a grey background of Texas Since it was zoomed in so close the picture really looked like a bunch of circles on a flat grey pancake Scientifically the image did what it was supposed to do show the reader the lat long of epicenters in Texas but it just looked terrible No one told me to do it and it might have been a not so productive use of my time but after an hour of google magic I managed to pull in some super high resolution DEM imagery of my study area and use that as a basemap this was done all before the hw for the image below was posted unfortunately The picture looks really cool and after I put in some more stations on it I ll be happy to show it I just felt really proud making something that looked so interesting to myself at least

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/the_long_haul (2015-11-11)
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  • IRIS Internship Program - Attitude and Amplitude
    three hours trying to solve what I believed to be a complex problem but all I needed to do was delete a comma can be incredibly annoying but that is what research is all about I guess Living on my own has proven to be a large adjustment for me as well Since I commute everyday from home to go to school in the regular school year this would be the first time I have lived hundreds of miles away from my family for such a long length of time Grocery shopping takes such a long time and trying to cook healthy meals just means more time spent It s so easy to just buy a 4 99 frozen burrito and throw it in the microwave but that s not the type of life I want to live It doesn t make it any easier when none of my roommates cook and I m the only one really using a kitchen knife and an appliance that isn t the microsave or panini maker Comments By Michael on June 22nd 2015 Great reflection Data preparation is definitely a challenge and as you have found automating this is a great time saver Glad you were able to get this working While it may not seem like much this is nice step forward for you as an undergraduate researcher Your thoughts on independence both at work and at home are insightful The home side of things is an important one especially if you can find enjoyment in the process I personally find my daily cooking to be a relaxing way to think about and then let go of the day s work This is of course in addition to other health benefits from cooking What has been your best dish so far By

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/attitude_and_amplitude (2015-11-11)
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  • IRIS Internship Program - Working with Antelope
    database yet so all the events I am picking are completely new That also means if anything goes wrong my name is on it O Once all these events are picked I ll be aggregating them into a map of Texas so getting the locations right is imperative I will also be working on creating Matlab scripts for further post processing Ok now that all the technicals are out of the way I recently visited the Texas State History Museum I got to say Texans are fiercly attached to their independence considering 80 of the museum was dedicated to the Alamo and the war for Texas Independence Also apparently one of the most famous slogans of the Texas war for indepedence Come and Take it was fought over a cannon the size of two subway sandwiches Huh Comments By Louis Quinones on June 13th 2015 Hey Shawn looks like were both doing similar work as I m also in charge of doing the picks for the seismic arrays in North Texas in Antelope I ve also created a map of the events and stations for my group so I d be interested in comparing maps once you get around to

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/working_with_antelope (2015-11-11)
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  • IRIS Internship Program - July 5 - Settling In
    the bats For the first couple of days I have been here I have been introduced to specialized first arrival waveform picking software in UNIX and have had some practice with gmt in a linux environment On monday I will be traveling to Dallas with another student to install seismometers to incorporate into an ongoing seismic database around the north Texas area These seismometers are tiny They are much smaller than the ones we put out in New Mexico It will be interesting to see how different the installation will be My goals for the summer will be to improve my knowledge of the unix environment and understand how to post process seismic data catalogs in a variety of ways and how each method is applicable to different project goals The project is flexible and I may be able to utilize some of the methods I have learned in my home institution to get at questions that may be important such as seismic hazards in the Texas area This is a special opportunity for me to start thinking about how life as a grad student will be and how to think like a researcher Bat watching boats underneath S Congress Bridge Comments By Rob on June 7th 2015 Nice picture of Austin at night I ve done the bat bridge thing it s crazy how many bats are just hanging out under that bridge all day What type of seismometers are you installing near Dallas Trillium compacts The DFW airport has had an increase in earthquakes in the last few years will that be the sequence that you ll be working on I know there have been a few other induced seismicity swarms in other parts on Texas By Jordan Bishop on June 11th 2015 Wow Shawn that sounds exciting

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/july_5_-_settling_in (2015-11-11)
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  • IRIS Internship Program - First Blog Post - Socorro, New Mexico
    Home Blogs Shawn Lee First Blog Post Socorro New Mexico May 28th 2015 The food here is amazing I have never gained so much weight in so little time Luckily the oppressive New Mexico temperatures are sweating out my weight in water Our accomodations are high quality dorms meant to mimic that homely Motel 6 feel Despite being in a desert the plant life here is so much more vibrant

    Original URL path: http://www.iris.edu/hq/internship/blogs/entry/first_blog_post_-_socorro_new_mexico (2015-11-11)
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