Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck...
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Transcript of Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck...
![Page 1: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/1.jpg)
Visualizing the Seismic Wavefield with EarthScope’s Transportable Array
AGU, Fall 2008
Chuck Ammon, Penn StateBob Woodward, IRISKevin Furlong, Penn State Thorne Lay, UC Santa Cruz
![Page 2: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/2.jpg)
EarthScope USArray Transportable Array
2004 2013
The Transportable Array will occupy 1600 sites across the contiguous US
![Page 3: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/3.jpg)
Visualizing Seismic Data
• “Animate” the ground motion at a seismic station
![Page 4: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/4.jpg)
The Seismic Wavefield
• Direct visualization of the wavefield
• Direct representation of the data
• Data are only bandpass filtered - no other processing
![Page 5: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/5.jpg)
Distance ProfileStations shown in distance profile
![Page 6: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/6.jpg)
Azimuth ProfileStations shown in azimuth profile
![Page 7: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/7.jpg)
Three Component Visualizations
Observed Predicted
![Page 8: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/8.jpg)
Tell a Story
• The challenge: reach a broader audience• How?
– Embed the wavefield animations in a “complete” story
• Address basic questions– Where was the earthquake?– How did the energy get to North America
• Combine synthesized content with direct representation of the data to tell a story
• Represent the physics accurately• Minimize opportunities for muddling the message
![Page 9: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/9.jpg)
![Page 10: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/10.jpg)
Represent Seismicity
• Challenge: Represent global seismicity in time and space on an iPhone touchscreen
![Page 11: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/11.jpg)
Integrate map, text, timeline, . . .
![Page 12: Visualizing the Seismic Wavefield with EarthScope’s Transportable Array AGU, Fall 2008 Chuck Ammon, Penn State Bob Woodward, IRIS Kevin Furlong, Penn State.](https://reader035.fdocuments.us/reader035/viewer/2022081513/56649d215503460f949f7089/html5/thumbnails/12.jpg)
Summary
• Wavefield animations provide a science, education, and outreach tool
• Extensions to the basic animations broaden the potential reach, but require care to avoid mis-interpretation
• See the IRIS booth for a compilation on CD
• Free download of the Epicentral iPhone application– Search for Epicentral on iTunes
• More movies on the web– www.iris.edu/hq/resource/earthquake_wave_visualizations– eqseis.geosc.psu.edu/~cammon/QA/