Don't Panic Geocast

Shannon has been in the field sampling the great unconformity and John has been traveling to prepare for an exciting change. Join us this week to learn about discontinuities of all kinds! Unconformities Sedimentary Rocks Siccar Point Unconformity Geologic Time Lab Activity Grand Canyon Geology The Great Unconformity Fun Paper Friday Peters, Shanan E., and Robert R. Gaines. “Formation of the Great Unconformity as a trigger for the Cambrian explosion.” Nature 484.7394 (2012): 363–366. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

This week we address a listener question about air pressure. What is it? Is the Earth’s atmosphere different thicknesses at different places? Find out, along with the answer to the age old question: “Where are all the teaspoons?” Air Pressure International Standard Atmosphere Barometric Pressure Pascal (unit) Scale Height Hydrostatic Equation Upper Air Maps Make a barometer Density Altitude Fun Paper Lim, Megan SC, Margaret E. Hellard, and Campbell K. Aitken. “The case of the disappearing teaspoons: longitudinal cohort study of the displacement of teaspoons in an Australian research institute.” BMJ 331.7531 (2005): 1498–1500.

John and Shannon are still fighting lab equipment, but take a break to talk to a guest suggested by listener Angie about how climate change is forming our landscape. Ben Crosby Dr. Crosby’s Website Permafrost Thermokarst Gooseff, Michael N., et al. “Effects of hillslope thermokarst in northern Alaska.” Eos, Transactions American Geophysical Union 90.4 (2009): 29–30. Jorgenson, M. Torre, Yuri L. Shur, and Erik R. Pullman. “Abrupt increase in permafrost degradation in Arctic Alaska.” Geophysical Research Letters 33.2 (2006). Pelletier, Jon D., et al. “Forecasting the response of Earth’s surface to future climatic and land use changes: A review of methods and research needs.” Earth’s Future 3.7 (2015): 220–251. Olefeldt, D., et al. “Circumpolar distribution and carbon storage of thermokarst landscapes.” Nature Communications 7 (2016): 13043. Alaska has finally been mapped as precisely as Mars Fun Paper Friday Butcher, F. E. G., et al. “The Dorsa Argentea, Mars: Comparison to> 5900 Terrestrial Esker Systems

John and Shannon are fighting lab equipment, but they take a break to continue their discussion of hurricanes. This week we talk about how we measure hurricanes - from airplanes to buoys. Hurricane Hunters Reporter Flys with the Hunters (YouTube) 403rd Wing Homepage NOAA Hurricane Hunters Homepage AT–6 Texan WC–130 WP–3D Gulfstream IV Storm Chasers Book (David Toomey) Instruments Dropsonde Driftsonde National Data Buoy Center Weather Buoy John’s Article on Tsunami Buoy Data Weather Ship Guabancex Fun Paper Friday This week’s fun paper is all about woodpeckers, how their eyes stay in their skulls, their skull structure, and other fascinating adaptations to handle literally beating their heads into a wall. Schwab, Ivan R. “Cure for a headache.” British Journal of Ophthalmology 86.8 (2002): 843–843. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

We’ve had a fairly active hurricane season, so we thought that maybe now would be a good time to discuss what exactly a hurricane is, especially for those of us non-coastal dwellers who maybe don’t think about them as much as say…tornadoes! National Hurricane Center Hurricane Structure Storm Surge Hurricane FAQ Typhoon Tip Hurricane Patricia NHC Hurricane Patricia Report Hurricane Wilma 1900 Galveston Hurricane Hurricane Katrina Hurricane Andrew Hurricane Sandy Saffir-Simpson Scale Fun Paper Friday Bantoft, Christina, et al. “Effect of Standing or Walking at a Workstation on Cognitive Function A Randomized Counterbalanced Trial.” Human Factors: The Journal of the Human Factors and Ergonomics Society 58.1 (2016): 140–149. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

John visits Maker Faire and Shannon found another paper about video games to answer questions we raised last week. Maker Faire Glank Ono Smartphone 3D printer Glowforge Referral Link! Beagle Bone OSHPark See Me CNC Aleph Objects   Chipsetter Shaper Origin Wazer Tormach Fun Paper Friday Greitemeyer, Tobias, and Dirk O. Mügge. “Video games do affect social outcomes a meta-analytic review of the effects of violent and prosocial video game play.” Personality and Social Psychology Bulletin (2014): 0146167213520459. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Shannon has been at the Geological Society of America meeting in Denver and John is about to head off to Maker Faire. Join us to hear about the latest in geology and a fun paper we almost chickened out on. GSA Meeting 2016 Charon Helene Bingham Material Fun Paper Friday Who knew there was so much work on human-chicken relationships? Apparently listener Steve did! Fothergill, B.T. and Flick, C. 2015. The ethics of human-chicken relationships in video games: the origins of the digital chicken. Computers and Society - Special Issue on Ethicomp 45 (3) 100–108 Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

Feedback Babylon 5 Effects John was on Embedded.fm this week! Big year for NPS Lots of press about NPS turning 100 this year Every Kid in a Park NPS Timeline Yellowstone Antiquities Act Organic Act Shannon’s top picks Crater Lake National Park Glacier National Park John’s top picks Arches National Park Canyon Lands National Park Fun Paper Friday All of your selfies can help the national parks understand visitor patterns and determine what attractions are the most popular at each site. Sessions, Carrie, et al. “Measuring recreational visitation at US National Parks with crowd-sourced photographs.” Journal of Environmental Management (2016). Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

This week we take it slow. Laura Wallace joins us to talk plate tectonics and slow slip in New Zealand. Also a project that gets the best acronym of the year award. Laura Wallace Laura’s UTIG Page phys.org article on HOBBITS EOS (from AGU) Article HOBITSS Science Paper “Slow Earthquakes are a Thing (Smithsonian Magazine) Fun Paper Friday The David is one of the most famous sculptures in the world, but will rock failure ultimately bring him down? What’s the Achilles’ heel for David? David’s Ankles: How Imperfections Could Bring Down the World’s Most Perfect Statue Corti, Giacomo, et al. “Modelling the failure mechanisms of Michelangelo’s David through small-scale centrifuge experiments.” Journal of Cultural Heritage 16.1 (2015): 26–31. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

Earthquake! Last week Oklahoma was rocked by the largest recorded earthquake recorded in the state’s history. We talk with Dr. Katie Keranen who is in the field deploying seismic instruments to study the event. Sorry for the audio quality this week - we were recoding the interview as a phone call since Dr. Keranen was in the field and there are occasional dropouts. Ground Motion Videos Particle motion video in Tulsa Particle motion video in Arkansas IRIS Ground Motion Video Other Links Did you feel it? Seismic Nodes Aftershocks Fun Paper Friday Ray tracing is a technique that we use is seismology, but also in computer graphics. Join us for this hilarious paper about ray tracing in Jell-O! Heckbert, Paul S. “Ray tracing Jell-O brand gelatin.” Communications of the ACM 31.2 (1988): 131–134. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

A few weeks ago we finished collecting all of your limericks in our contest to win some sweet geo-swag from Chris at Taylor Custom. This week we are joined by special guest Katie Shearer to announce the winners and read more of our favorites! If you didn’t win, don’t fret, we are working with Chris on a top secret project and will be running another contest soon! Fun Paper Friday Sneezes and coughs turn out to be a treasure trove of fluid dynamics effects and import for disease spread. In this paper we explore the gross side of multiphase turbulent flow (snot) research. Scharfman, B. E., et al. “Visualization of sneeze ejecta: steps of fluid fragmentation leading to respiratory droplets.” Experiments in Fluids 57.2 (2016): 1–9. Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

We are teaching and traveling with the start of the semester. Since John has no solid cell phone signal at a conference in New Hampshire and Shannon is swimming in lecturing, we wanted to share one of our favorite interviews from this year! This week a special guest takes us to the moon by talking about lunar rocks and meteorites! The moon turns out to be a fascinating place, but probably won’t break up like in Seveneves. Brad’s Website Jim Papike Lunar Reconnaissance Orbiter Lunar Reconnaissance Orbiter Camera (LROC) Mars Exploration Rovers Apollo Lunar Rocks and Soils Collection Impact Basin Geology South Pole-Aitken Basin Yutu Rover Electron Microprobe Armalcolite (mineral) IDL ENVI Software ISIS Software ArcGIS ACT Zoomable Lunar Map Fun Paper Friday “Age Rules” from PSRD Borg, L. E., Gaffney, A. M., and Shearer, C. K. (2015) A Review of Lunar Chronology Revealing a Preponderance of 4.34–4.37 Ga Ages, Meteoritics & Planetary Science, v. 50, p. 715–732, doi: 10.1111/maps.12373. Contact us: Show - www

Classes start next week - it’s time to evaluate what we did over the summer. How did our summer manifestos work out and what are we going to accomplish this fall? Defcon Seismometer Hack Seismo Live Techniques of Experimental Geoscience Webpage Spaceballs Combination Scene John’s Fall Goals Figure out my future job Finish up a couple of instrumentation projects Assemble my dissertation Don’t let this class kill me Shannon’s Fall Goals Look for my replacement for Evernote Actually look at my to-do better next time list for classes Read all the literature! Submit a manuscript Have fun with my new class…geology of extreme climates Limericks We are setting up a time to record with our judge, it may be a week or two, but hang in there. If you want to send in an audio recording of you performing your limerick, that would be awesome. Don’t forget - we have STICKERS! Fun Paper Friday Andrade, Marco AB, Anne L. Bernassau, and Julio C. Adamowski. “Acoustic levitation of a large solid sphere.” Applied Physics Le

This week we address a listener show request from Mike about the Driftless region and address the phenomena of Pokemon Go. Can it improve our spatial reasoning? Cliff Clavin Example Driftless Region Geologic timescale reference Milankovitch cycles Laurentide Ice Sheet Post Glacial Rebound Wisconsin Glaciation Episode 51 – “Regelation. I think I had that for lunch the other day” Glaciers Episode 68 – “It’s kind of magical down there” Kiya Riverman Loess Glacial Till Glacial Advances Map Topography Map Baraboo Range Fun Paper Friday What are the effects of Pokemon Go on our social interactions and spatial reasoning? The Psychology of ‘Pokemon Go’: What’s Fueling the Obsession? Contact us: Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin

Having just got back from vacationing near a river, Shannon’s mind is wondering (and wandering!) about dams and their impacts, both good and bad. People use dams for electricity, recreation, flood control, and a myriad of other things. Let’s take a look at some huge dams and what they do to both communities and rivers. Oroville (1968) is the tallest in the US, and earthen dam in CA 770’ high Hoover (1935) is next at 726’ high on the border of AZ and NV Tallest dam in the world is Jingping-I dam (2013) in China is 1000’ high Largest reservoir in the US is Lake Mead, which holds 29 million acre-feet of water Glen Canyon dam Lake Powell on the AZ/UT border, and is a close second at 26 million acre-feet capacity. Colorado River WPA Why build dams at all? Water supply Irrigation and flood control Power supply Recreation Hydroelectric Power Hoover dam generates 4.5 billion kw-hr per year, serving 8 million people in AZ, southern CA and NV Itaipu dam, on the border of Brazil and Paraguay, dams the Parana Rive

Forecasting the weather is tricky business. You need a lot of information. While surface observations can get us a lot of data, we still need information about what is happening far into the atmosphere to make meaningful models and predictions. Thats where weather balloons come in. This week we talk about how upper air observation works as well as Jupiter’s atmosphere on Fun Paper Friday! Weather balloons Pilot Balloons Real Time Sounding Data Hodograph Skew-T Tephigram Stuve diagram High altitude research balloons Near space hobbyists NOAA Radiosonde Fact Sheet GPS occultation to measure atmospheric profiles NOAA Weather Balloon History Weird Al - EBay (YouTube) Contest Write us a geoscience themed limerick! This is a family show, so remember…nothing that rhymes with “Nantucket” Please email us your limericks by August 12, 2016 and we’ll be judging them along with Dr. Katie Schearer, an english professor. The prize? One of the awesome creations from Chris at Taylor Custom. Thanks for listening everyone! Jo

This week we discuss the anniversary of the first manned lunar landing and how a software glitch puts over 40,000 brain studies at risk. Apollo 11 Apollo 11 Neat landing visualization with audio Crew: Buzz Aldrin, Michael Collins, and Neil Armstrong Code on GitHub Lunar Module Code Walkthrough (Video) Saturn V Graphic XKCD - up-goer 5 Easy reading of Apollo 11 events Digital Apollo The Dish (movie) Fun Paper Friday Eklund, Anders, Thomas E. Nichols, and Hans Knutsson. “Cluster failure: Why fMRI inferences for spatial extent have inflated false-positive rates.” Proceedings of the National Academy of Sciences (2016): 201602413. SciPy 2015 Colormaps Contest Write us a geoscience themed limerick! This is a family show, so remember nothing that rhymes with “Nantucket.” Please email us your limericks by August 12, 2016 and we’ll be judging them along with Dr. Katie Schearer, an english professor. The prize? One of the awesome creations from Chris at Taylor Custom. Thanks for listening everyone and thank you

British Geological Survey Hackathon SciPy 2016 A few SciPy talks Modeling Rate and State Friction with Python | SciPy 2016 | John Leeman Working towards all the Geophysics, but Backwards | SciPy 2016 | Rowan Cockett Using Open Source Tools to Refactor Geoscience Education | SciPy 2016 | Lindsey Heagy MONTE Python for Deep Space Navigation | SciPy 2016 | Jonathon Smith Reproducible, One Button Workflows with the Jupyter Notebook & Scons | SciPy 2016 | Jessica Hamrick Feedback Nature Podcast Episode Contest Write us a geoscience themed limerick! This is a family show, so remember…nothing that rhymes with “Nantucket.” Please email us your limericks by August 12, 2016 and we’ll be judging them along with Dr. Katie Schearer, an english professor. The prize? One of the awesome creations from Chris at Taylor Custom. Thanks for listening everyone and thank you Chris! Fun Paper Friday Interference puts satellite data at risk Contact us Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast

This week a massive landslide took place in Alaska. Join us to discuss it, Jupiter’s wife, and electric eels on a geo-news episode! July 7, 2016 Oklahoma Heat Bursts AGU Landslide Blog Article Gizmodo Article on the landslide Phys.org Article Landslide Dynamics Juno reaches Jupiter Fun Paper Friday Electric eels are creepy, but did you know that they can jump out of the water to better shock intruders? Neither did eel scientists! Catania, Kenneth C. “Leaping eels electrify threats, supporting Humboldt’s account of a battle with horses.” Proceedings of the National Academy of Sciences (2016): 201604009. Eel experiment videos Eeliad Project Summary Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin  

What’s your favorite formation? It’s like asking a geologist what their favorite book is. Find out what Shannon has to say about the Fountain formation and then we connect it to metal music. Book Club! Fountain Formation Red Rocks Amphitheatre Flatirons Ancestral Rocky Mountains John McPhee Fun Paper Friday What are the risks of headbanging to music? Would you believe there is a paper about it? Patton, Declan, and Andrew McIntosh. “Head and neck injury risks in heavy metal: head bangers stuck between rock and a hard bass.” (2008): a2825. Contact us: Show - www.dontpanicgeocast.com - @dontpanicgeo - show@dontpanicgeocast.com John Leeman - www.johnrleeman.com - @geo_leeman Shannon Dulin - @ShannonDulin