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?”

• International Standard Atmosphere
• Barometric Pressure
• Pascal (unit)
• Scale Height
• Hydrostatic Equation
• Upper Air Maps
• Make a barometer
• Density Altitude

• 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.

• 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

• Butcher, F. E. G., et al. “The Dorsa Argentea, Mars: Comparison to> 5900 Terrestrial Esker Systems and Statistical Tests for Topographic Relationships.” (2016).

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

John Leeman - www.johnrleeman.com - @geo_leeman

Shannon Dulin - @ShannonDulin

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.

• 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)

• Dropsonde
• Driftsonde
• National Data Buoy Center
• Weather Buoy
• John’s Article on Tsunami Buoy Data
• Weather Ship
• Guabancex

• 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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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

• 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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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.

• Glank
• Ono Smartphone 3D printer
• Glowforge Referral Link!
• Beagle Bone
• OSHPark
• See Me CNC
• Aleph Objects

• Chipsetter
• Shaper Origin
• Wazer
• Tormach

• 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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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

• 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

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

John Leeman - www.johnrleeman.com - @geo_leeman

Shannon Dulin - @ShannonDulin

Feedback

• Babylon 5 Effects
• John was on Embedded.fm this week!

• Lots of press about NPS turning 100 this year
• Every Kid in a Park
• NPS Timeline
• Yellowstone
• Antiquities Act
• Organic Act

• Crater Lake National Park
• Glacier National Park

• Arches National Park Canyon Lands National Park

• 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).

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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’s UTIG Page
• phys.org article on HOBBITS
• EOS (from AGU) Article
• HOBITSS Science Paper
• “Slow Earthquakes are a Thing (Smithsonian Magazine)

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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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.

• Particle motion video in Tulsa
• Particle motion video in Arkansas
• IRIS Ground Motion Video

• Did you feel it?
• Seismic Nodes
• Aftershocks

• 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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

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!

• 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.

Show - www.dontpanicgeocast.com - SWUNG Slack - @dontpanicgeo - [email protected]

John Leeman - www.johnrleeman.com - @geo_leeman

Shannon Dulin - @ShannonDulin