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  • IRIS Internship Program - Communicating Science Training
    Communicating Science Training Most of the fundamental ideas of science are essentially simple and may as a rule be expressed in a language comprehensible to everyone Albert Einstein Traditional scientific training typically does not prepare scientists and engineers to be effective communicators outside of academia However funding agencies and research institutions are increasingly encouraging researchers to extend beyond peer reviewed publishing and communicate their results directly to the greater public In response our program along with the AAAS Center for Public Engagement provides all IRIS interns with education and resources to help them communicate about their research more broadly with the public Through a 90 minute webinar generally run midway through the summer IRIS interns learn the basics of communication how to tips for constructing short articles and slide presentations and a review of tools available from AAAS for other types of public communication Following the webinar each interns creates either a brief new article or slide presentation to communicate their summer s research to a audience of 15 to 18 year olds that are unfamiliar with the research This assignment is submitted to IRIS and AAAS staff who provide each intern with personalized constructive feedback At the end of

    Original URL path: http://www.iris.edu/hq/internship/site/PAGE_standard/899 (2015-11-11)
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  • IRIS Internship Program - Benjamin Brophy
    or Somebody just did a triple somersault and then a cannonball into a pool in the Mediterranean Sea Our streamer is a 60 meter firehose which contains horizontal and vertical geophones every 1 25 m as well as a lot of heavy cables to transmit the geophone reading back to our headquarters the van The van drives 2 meters at a time dragging the trailer and firehose and then stops to drop the hammer A mechanism on the trailer pulls the hammer vertical against a thick rubber band until it releases and clangs into the ground with an enormous amount of noise which is amplified by a steel plate placed underneath to protect the street The geophones record the echos of the waves produced as they reflect and refract in the Earth s crust Here s a closer look at the geophones the red one detects vertical motion while the orange one detects horzontal motion To get long straight profiles on relatively homogenous terrain we drove up and down the streets of SLC making out hammer shots I had a few different jobs One was the hammer operator It seemed simple but took a bit to get into the rhythm of lifting and drop the hammer quickly enough that we can keep moving but with a few seconds of space to the sensors reset once the van breaks When operating the hammer I just had to help the van driver make sure they stopped at 2 meters ahead of the last shot I got to wear earmuffs for this job because once again the shots are loud The job I spent the most time on was manning the streamer since the streets aren t quite level it was necessary to lug the firehose back to the center of the street every few shots And the sweet life is driving the tail vehicle this job is the drive another truck behind the end of the firehose listen to the radio and eat whatever snacks I happened to bring with me you know for safety We started preparations at 4 00 am on Friday morning in what we believed would be a downtown non residential area but when we started shooting at around 5 20 am it became clear that there were quite a few inhabitants on our first street Most people came out just to check out what was going on but a few residents were pretty furious that they had to experience 10 minutes of loud noise passing by their apartment Some residents insisted there were no earthquakes in Utah I felt like we were the mad scientists or skeptics in a disaster movie Trust us This is for your own good We are protecting the city from catastrophe Friday we toured many short residential streets in North SLC I discovered that banging the noise of a hammer on asphalt is nothing compared to the cacophany produced from a shot on concrete We went up a narrow concrete alley in

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/116 (2015-11-11)
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  • IRIS Internship Program - Hannah Krueger
    got to know one another very well Kayla stayed with me until her Saturday flight so we had a chance to go dancing and visit the beautiful wildflowers that are covering Mt Rainier before she left Wildflowers on Mt Rainier Kayla and I with Rainier in the background Link to Post Comment on this Post 0 Comments Blog 4 Playing catch up July 14th 2015 This summer s research has provided many obstacles that all have their own little enjoyable challenge to overcome such as finding the concentration to read research paper after research paper and troubleshooting when data analysis doesn t work the way it s supposed to Figuring out how to fix wonky sites during fieldwork was also quite the learning experience but it ended in success with us visiting 69 70 sites and leaving all of the ones we visited in working order One of my most frustrating obstacles is getting used to gmt 5 and having to fix every code I use to adjust from gmt 4 to 5 Here is one homework assignment where I had to make these adjustments The hardest real challenge I m facing right now is getting back into research after returning from 12 days of fieldwork Coming back and having to get all of my affairs in order has been incredibly frustrating especially since I m constantly mixing up east coast and Pacific time Honestly my biggest success right now is that today I am actually organized and I have time to sit down and work Link to Post Comment on this Post 0 Comments Independence June 19th 2015 In the past week I feel like I ve really made some headway in my research I ve computed receiver functions for all of my stations but some of them look a little crummy so I m going to re pick p wave arrivals to see if that s where the issue is from Here is an example of one of my non crummy receiver functions Here is a picture of the stacked radial left and transverse right components of receiver functions for one of my stations called BUCK Back azimuth degrees is on the y axis and time s after p wave arrival is on the x axis Mitchell finally came to Seattle this weekend Before he even had a chance to start his research we headed out to get our first taste of iMUSH fieldwork investigating magma under St Helens The stations we serviced were quite the learning experience we had to replace the DAS and power box on one of them and the views were incredible We climbed to one ridge where we could see Mt St Helens Mt Rainier Mt Adams and Mt Hood from one spot Here is a picture I took on the walk down to one of the stations we were servicing Monday As you may have figured out from other posts there is a theme this week Independence I have like most people

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/119 (2015-11-11)
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  • IRIS Internship Program - Louis Quinones
    m also part of a small group who are in charge of monitoring the other 2 systems like I m in charge of analyzing the Irving system To compound this my advisor Heather is not the only proffesor working on the North Texas earthquakes so I m also attending weekly meetings with a group of faculty at SMU where I present weekly data changes and analysis progress to them about the Irving sequence Because of this when I think of what kind of independence that I m exhibiting its more of the subtle ways that I ve become more independent Unlike at Texas A M I can t simply walk to wherever I need to go so I ve taken to planning out my daily commutes and trips very carefully my eating habits are also a point which I now have pretty much full control over as well but probably the its how I choose to go about my daily work that is the most challenging part of becoming more independent Trying to decide whether I should be cleaning up some figures getting more experience with the software reading a new paper to get background information writing a new script to make my workflow faster etc can be very difficult and I won t deny that there have been some points where I ve simply sat twiddling my thumbs waiting for someone else to tell me what I should be doing Overall though I think that I am learning how to be a bit more skillful in learning how to manage myself but I believe that I ll always be more motivated and work more efficiently whenever I have a goal in mind the only hurdle to overcome is learning how to create those goals myself whenever no one else is there to give me one Edit The map to the left is a map of the Irving sequence showing all the events that have occurred since January 1st 2015 in the Irving Dallas area The triangles and diamonds show the locations of permanent and temporary stations that have been used to monitor the sequence There are also two cross sectional views showing the events from an along strike and cross strike view in order to attempt to determine the locations of fault structures using our event locations Link to Post Comment on this Post 3 Comments SMU Internship Week 2 June 13th 2015 A second week has come and gone and I m starting to get a better handle on each of the jobs I ve been asked to do in the research group I attended my first weekly research group meeting with the other departments and groups that are studying the North Texas seismicity at SMU and got to present some figures and data that I ve assembled in the two weeks since I arrived While I still haven t gotten used to the functions of all the programs just yet and have still only just begun to

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/121 (2015-11-11)
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  • IRIS Internship Program - Jonathan Guandique
    time consuming The Matlab script that my mentor and I have come up with is one that obtains data from each station during a specidfied time period and plots it in several plots that display the signals noise and all that have been picked up during that time period This is useful when analyzing any changes over the course of the year However because it is a lot of data it takes quite a while to actually get through all the stations and plot them Also another kink that I have noticed is that the porgram overwrites the previous graph with the most recent graph which makes comparing station to station spectra rather difficult This is something we can hopefully resolve soon for time is of the essence Link to Post Comment on this Post 1 Comments Week 3 4 of Independence June 18th 2015 This week and last consisted of essentially writing scripts to collect numerous amounts of data and plot them We are not looking for the biggest earthquake evver quite the opposite We are looking for noise and the consistency of noise at ceratin stations throughout the year We want to see if trends in noise is the same annually and would like to see patterns because patterns in data is good Patterns would make my life so much easier Here is a little sample of what the script which was started for me well basically almost done for me as my understanding of matlab scripting has marginally increased I would like to note that I did put the finishing touches on it yay does for a sample of data from December 16th 2013 Link to Post Comment on this Post 1 Comments Week 2 blog June 5th 2015 It has been quite a climate change from New Mexico to Maryland It has been so dreary and rainy this past week that it makes me miss New Mexico s dry weather Anywho I was finally able to meet my mentor and his associates and some of the grad students here in the lab All of them are great people each with differing personalities but who wants to have the same personality as someone else different is good As for what I have done personally this week lets just say that its taken me quite a bit to read these papers and get a better understanding of what the whole project is about While it is a difficult concept to get a grasp of it s very interesting Apart from reading I was also getting some more exposure to Matlab seeing how I am not very adept at it While my first week hasn t been very eventful I m enjoying the learning that I am doing now As for my reasearch I plan to start looking at data next week adn actually be able to graph an interpret it This will probably consist for the first third of my internship For the second third of my internship

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/125 (2015-11-11)
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  • IRIS Internship | Request password reset
    Request password reset IRIS Internship Request password reset Request password reset Your Email Address Back to Login Script Executed in 0 0186 seconds Powered by ExpressionEngine

    Original URL path: http://www.iris.edu/hq/internship/member/forgot_password (2015-11-11)
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  • IRIS Internship Program - Gina Belair
    enough equipment for one and a half stations After we loaded up and got to the site the real work began The first thing that needed to be done was to plan where the equipment would go We had to find a place for the sensor the action packer and the solar panel mount We had to make sure all the wires would reach the solar panel would get enough sun the sensor would have good drainage and other similar details Once the plan was decided it was time to dig and lug 1 2 people would dig the hole for the seismometer while the other person would begin hauling stuff from the car Once the hole was ready a quick drying cement pier was poured for the seismometer to rest on While waiting for the concrete to dry we would set up the solar panel and the action packer The action packer contains all of the electrical equipment that powers and communicates with the sensor Finally the sensor gets placed and buried the action packer gets covered with heavy logs and pictures are taken Sprinkled between these steps are unwanted nuisances such as bruises bug bites flat tires missing equipment lost keys etc We installed the majority of the seismometers those first three weeks but we couldn t install the last seven until mid July because of permitting issues I was on one of the teams that finished up the installs during the service run A service run consists of driving to the site switching memory disks and checking to make sure everything is working For the service run I was working out of Trout Lake with an employee from CVO Cascades Volcano Observatory There is no cell service so email was the only way to communicate with other service teams We would check in with the other groups at night to make sure everyone made it back alright One night I decided to check in with the following short story 7 15 The story of two young travelers passing through Trout Lake It was mid July and the heat was unforgiving It was even harder to bear when that overloaded SUV decided to fight back The odds were against them when she blew a tire on that old dusty road This wasn t the first hardship they encountered but it came at the worst time They couldn t chance being stranded since their comrades were hours away The only option was to see if that old four wheeler could be put back together The help they needed was back in town at an old service station so the two travelers turned tail and ran Once that old hunk of junk was fixed up they decided to give it one more go Although their hopes were high their original plan was abandoned They decided to head to the longest and most arduous site to deploy one of the few remaining seismometers The two weren t out of the woods

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/92 (2015-11-11)
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  • IRIS Internship Program - Celeste Labedz
    variety of single year correlations some with high amplitude traces taken out some with time windows of earthquakes taken out some correlated with different time spans et cetera in order to figure out which methods of correlation and stacking can do the best job of picking out waves Once I declare a winner out of the many combinations of methods which will hopefully happen early next week I will apply it to the full eight years of seismic data I have continued to take advantage of the MIT environment by going to more lectures they are usually only an hour apiece so I can easily attend them without having to spend an extreme amount of time catching up on work later On Monday I attended a talk about cloud microphysics the way that tiny bits of water ice and other materials behave in clouds and found it very interesting Tuesday afternoon I went to a lecture about the use of proteins in polymer chemistry and only barely understood what was going on but still found what I did understand to be pretty neat On Thursday I listed to a materials science talk about growing perfect silicon crystals it was also rather cool Last weekend I decided to kick back for an afternoon at the beach Revere Beach near the end of one of Boston s subway lines was hosting a sand sculpting festival so I saw some truly astounding artwork in addition to the normal beach sights of waves shells seagulls dead stingrays strange tourists and slightly questionable food vendors Link to Post Comment on this Post 0 Comments Week Seven July 18th 2014 I had a real adventure over last weekend two days in Maine The coastal cities there are only a few hours away by train so I visited a friend there who used to live in Nebraska I had not seen her in over a year We happily reunited and she made sure I got the full Maine experience we saw lighthouses relaxed on the beach poked around tide pools on rocky coasts and ate local lobster and whoopie pies It was really great to get out of the big city for a while see an old friend and experience a new place Back at the office this week the search for body waves has continued I have been doing a lot of beamforming the process which takes a set of correlations and returns a plot showing the times and speeds for which there is wave propagation over various windows of times and station separations searching for bright blobs that indicate a wave In this search I get hints on where to look from SEIZMO s TauP function which gives the arrival time and speed of various seismic wave phases at any entered distance I took a break from my own research today to listen to a seminar from a professor doing research in nonlinear optics at Cornell His group has been using silicon based microresonators rings of silicon compounds at which you point lasers to make frequency combs like a bunch of lasers all at once each with a different frequency and all of the frequencies are equal intervals apart It was nice to take a break from being moderately confused by geophysics to be moderately confused by regular physics for a while I have also been working hard on my communicating with non scientists project a slide show and notes that would guide me in explaining my research in a presentation to the general public In addition to improving my scientific communication skills as a whole it is helping me come up with the elevator speech version of my research that I know I will have to repeatedly give to my classmates professors friends family and more upon my return to Nebraska On the whole it is an interesting and useful project Time until AGU abstract deadline two and a half weeks Total time left at MIT one month Link to Post Comment on this Post 2 Comments Week Six July 11th 2014 The waves are beginning to reveal themselves Using the first year of our seismic readings I have correlated the data stacked the correlations and then plotted the stacks into figures where the waves can actually be visible In addition to simply looking at the plots of the stacks I have also been searching for the body waves by using a handy process called beamforming which involves taking the correlation stacks and the separation distances of their stations and then searching for wave propagation at a range of velocities by using the inverse Radon transform Different types of waves move at different speeds so the phases present can be revealed by looking at the velocities that show motion I show both a plot of stacks and an inverse Radon transform plot below So far I have primarily been seeing the dominant surface waves instead of the more subtle body waves for which I am looking but seeing any waves at all means I am generally on the right track My first plan in making the body waves appear is changing the way I stack the correlations Currently we drop the loud time windows that might contain an earthquake by using a cutoff root mean square of each window s trace but this method can also remove windows of good data that are loud such as during a big storm Instead I have just created and started testing a function that removes windows with earthquakes by comparing the times of the windows to a global catalog of earthquakes It may appear that I should have been using this method since the start but the other way is much easier to program and much quicker to use so I hoped it would be enough Regardless the trouble I am facing with the new method is deciding how much time I should remove with each earthquake too little would be taking in bad data but too much would be ignoring good data Assignment 6 figures I have uploaded two figures here imgur com a VGnzO You can click on each one to zoom in on them They have no figure titles and the axes titles are rather limited but these are not meant to be poster worthy they are just an example of the step through which I am currently working on my way to some real answers I made both figures in MATLAB the first with SeismicLab s wigb function and the second with MATLAB s imagesc function Descriptions of the figure contents are as follows Figure One Each line in this plot represents the correlations from one pair of seismic stations A wiggle in one line shows a wave arrival at one station when the other is considered to be a virtual source that is basically how a correlation works The correlation lines here are actually stacks of correlation traces from an entire year of data giving them a much greater signal to noise ratio than individual traces When arranged with respect to the separation distance between the stations most of which happened to end up negative here because of how we set it up for East West locations a wave propagating at about 2 8 kilometers per second becomes quite clear this wave is the surface wave The waves for which I am actually looking are body waves which would have greater speed and lower amplitude but none are visible in this figure Hopefully I will have a figure showing body waves soon Figure Two This colormap displays the inverse Radon transform of the correlation stacks mentioned above and despite its radically different appearance from figure one this figure shows much of the same information we gathered before The inverse Radon transform which I was able to do with the SEIZMO suite of seismic analysis tools for MATLAB from Washington University in St Louis starts with a chosen distance I picked 300 kilometers separation and looks for waves arriving over a range of times and propagating over a range of velocities The bright blob on the graph says that a wave moving at angular slowness 38 seconds degree about 2 8 kilometers second crossed the 300 kilometer mark at around 110 seconds this speed and time indicate that the blob is the same surface wave we saw in figure one The blob is made of alternating high and low stripes and has more subtle stripes emanating from it because of interference from all of the individual correlation stacks If this data had a strong body wave in it there would be another blob with lower amplitude located above and to the left of the surface wave Link to Post Comment on this Post 0 Comments Week Five July 4th 2014 Assignment 5 Free write Lately I have been figuring out the best plan for dealing with large events such as earthquakes in our data There are many ways large events can be found such as comparing our time windows with times in a global earthquake catalog or searching for anomalies in the amplitude or frequency of the raw traces or their correlations Once found the events can either be left alone dampened so their amplitude matches the noise around it or removed from the data entirely I have been looking at the correlations after various methods of dealing with these events in an attempt to determine which way will help us most in seeing the body waves for which we are looking The trouble I am frequently facing now is the limits of our computer power and storage It turns out that the correlations from one year of our seismic data take up nearly three terabytes Beyond that further processing of those correlations such as finding the RMS and stacking the correlations ends up using suchlarge amounts of memory that MATLAB and our processing cores sometimes get disagreeable I have yet to be halted though I am so far able to split up and alter our functions in order to keep things manageable Even with all of these things to do I have still found time for some fun Last weekend I visited Boston s Museum of Science where I saw musical Tesla coils live tamarins dinosaur skeletons and more I even bought a seismologically relevant souvenir at the gift shop a t shirt reading it s not my fault with a picture of a seismogram trace I am sure that wearing it to work will cause both smiling and the rolling of eyes I have also learned that Boston is one of the best places in which to celebrate Independence Day The threat of some serious storms pushed the city s big Fourth of July festival ahead a day but I was still able to enjoy the patriotic fun on the third I hung out with some of my new friends and watched the city s incredible fireworks display as it lit up the night over the Charles River Link to Post Comment on this Post 2 Comments Week Four June 27th 2014 Assignment 4 Discuss where the training wheels have been removed This week I feel like more has gotten done I am more familiar with what I am doing and I have laid enough foundation to get into bigger stuff I have now written a function that will plot every stack of correlations pertaining to any one chosen station each stack is plotted against time and they are all arranged by the separation between stations so waves present in the ambient noise are visible in their propagation outward from the first station which acts like a wave source because of the correlation So far with the small amount of data I have fully processed I am only able to see surface waves but when I have correlated and stacked more data and found the right frequency range with which to filter body waves should appear clearly Instead of the measly seven days of data I was using to write and test functions before I now have access to the full 2 920 days we have for this project I am certainly not using them all right away though I will continue using moderate amounts of data perhaps a month s worth or so as I continue to adjust the parameters of my functions in order to extract the body waves most clearly In order to process these new larger amounts of data I have also been given more computing power Before I was running things one at a time on the machine at my desk but now I have access to a twelve core cluster with which I can run my correlations more quickly in parallel I have also made strides in work life balance lately I went out to some neat places over last weekend such as the New England Aquarium and Boston s Museum of Fine Arts I am a big fan of both cuttlefish and French impressionism so getting to see both and other cool things in real life was amazing There are many more interesting attractions in this city that are on my to do list for free time in the future I am progressing socially here too I was introduced to the department s cookie hour allowing me to meet more people and hear about more research and I also made contact with some friends of mine that go to other colleges in the Boston area In addition I made some fun new friends by joining the MIT marching band as a bass drummer the band is small meets one evening a week and has kindly allowed me to join them even though I will only be here for the summer Despite the fact that I will be spending a lot of time alone at my computer for this research it looks like I will be able to avoid becoming a total recluse Link to Post Comment on this Post 1 Comments Week Three June 20th 2014 My week has been chaotic but interesting First being in a new city with new germs I managed to catch a cold and was running on partial zombie mode for several days Second my parents brother and aunt arrived on Wednesday for their week long visit I have been working on my project during the day then meeting up with them in the evening We re also going to spend the weekend together seeing sights going to museums and more While they were planning it months ago I repeatedly expressed that I would be fine and they did not need to come visit me but they insisted that they really wanted to and it would be a fun family vacation I was right that I am fine and they did not need to visit but I am glad they wanted to we are having a great time here together Assignment 3 This week s research and progress I have been continuing the correlating and stacking of data as before but have been focusing on a new step in between sorting which organizes the the correlated data by the pair of stations from which it came This was happening before as a part of my stacking step but making it more separate and organized will smooth things along once we start working with larger and larger sets of data With a sorted matrix of all of the traces for each pair of stations I will be able to find events like earthquakes that should be removed before stacking much more easily and I will be able to backtrack more quickly and easily in case of errors As I modify and test these functions I occasionally find myself with some open time as MATLAB cycles through significant amounts of data Luckily I have useful tasks with which to fill this time reading papers on similar research looking up Wikipedia articles on signal processing doing more computer tutorials perusing the seismology textbook I received at IRIS orientation week and drafting these blog entries I am getting better and better at MATLAB every day As I run edit and create programs in it I find myself getting stuck a lot less asking the postdocs and or Google for help less frequently and being able to understand and implement solutions more quickly when I do need help Perhaps most importantly I am now much less afraid of doing something wrong in MATLAB because I have learned that it will not get computer angry at me nor will it cause the total destruction of anything I also got some new tools to play with SeismicLab a suite of seismic data processing tools for MATLAB created by researchers in the physics department at University of Alberta Having only just opened it up I am not yet familiar with everything its gadgets are capable of or for what I will be using it but I have been told that it has some great tools for graphing data Everything I have done so far is about understanding and improving the process that I will eventually be using to find body waves in the full set of ambient noise data It seems like not a lot has happened yet but I have a lot of foundation to lay before I can really start making tracks Link to Post Comment on this Post 2 Comments Week Two June 13th 2014 Things are starting to pick up here now that my professor and the postdocs are all back from their assorted adventures so I have moved beyond just reading papers and watching computer tutorials This week I have spent a lot of time playing around with some of the existing MATLAB correlation and pre processing programs learning what they do how they do it and how it will be useful to me I also wrote my first program a simple method of stacking the correlations that come out of another

    Original URL path: http://www.iris.edu/hq/internship/blogs/user/94 (2015-11-11)
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