earthquake seismographs for volunteers to operate in k-12 classrooms
DESCRIPTION
Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms. Wayne D. Pennington Shannon E. Bair Seth R. Lemke Michigan Technological University. Project background The plan Software development and features Where we’re headed. Purpose. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/1.jpg)
Earthquake Seismographs for Volunteers to Operate in K-12
Classrooms
Wayne D. Pennington
Shannon E. Bair
Seth R. Lemke
Michigan Technological University
![Page 2: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/2.jpg)
• Project background
• The plan
• Software development and features
• Where we’re headed
![Page 3: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/3.jpg)
Purpose
• To provide low-cost earthquake seismographs for use by volunteers in schools.
• Expose students to geophysics and hands-on science early in their education.
![Page 4: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/4.jpg)
Similar Programs
• MichSeis– Larry Ruff,
Univ.of Michigan
• PEPP– Princeton Earth
Physics Project
Permanent, near-research quality observatories
![Page 5: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/5.jpg)
History of the Project
UUpper
PPeninsula
SSeismic
EExperiments
IIn
SSchools
![Page 6: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/6.jpg)
• MichSeis and PEPP programs are designed for permanent installations and dedicated staff
• Teachers wanted a temporary seismic station
• Needed user-friendly program
• Grant from SEG made this possible
![Page 7: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/7.jpg)
The Plan
• Develop a user-friendly, interactive program
• Use an extremely simple and portable system
A to D Converter
![Page 8: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/8.jpg)
How do we do this?
• Use the low-cost EAI S102 long-period seismograph
• Use a Macintosh or PC with an inexpensive A to D converter
• Write user-friendly interface with LabView software
![Page 9: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/9.jpg)
What is LabView?
• Software that uses the iconic programming language G.
![Page 10: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/10.jpg)
Current instant; record is added to end, rather than scrolling across.
Universal Time, so that earthquakes can be identified from global observations.
Today’s date
Local Time
SurfaceWaves
P-Wave
The most-recent 30 minutes, continually scrolling slowly across to the left.
Indian Ocean earthquake, June 18, 2000 Mb=7.8
![Page 11: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/11.jpg)
Slider-bar controlfor instantly chang-ing the display gain of the day’s record.
Slider-bar control for instantly changing the display gain of the 1/2-hour record.
Option to record data at one sample or 10 samples
per second
Indian Ocean earthquake, June 18, 2000 Mb=7.8
![Page 12: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/12.jpg)
Data recorded prior to midnight (yesterday, in Universal Time) is shown in gray, indicating that it is nearly one day old.
Night-time background noise level.
Data recorded since midnight (Universal Time) is shown in yellow, in these four-hour blocks.
Indian Ocean earthquake, June 18, 2000 Mb=7.8
![Page 13: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/13.jpg)
Name of file to which data is currently being written.
Amplitude of signal at this instant (changes each second).
The Stomp and yell box shows the output from a hi-frequency geophone, designed to dramatically show the effect of jumping in front of the seismograph (not recorded).
Indian Ocean earthquake, June 18, 2000 Mb=7.8
![Page 14: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/14.jpg)
Now that we’ve recorded an earthquake, we can look at it in different ways using the Viewer program:
First, let’s look at a whole day of data.
![Page 15: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/15.jpg)
View One Day
![Page 16: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/16.jpg)
Next, let’s save the portion of the day containing the quake.
![Page 17: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/17.jpg)
Name of quake file
Start Time
Length of Time
Scrollbars allow you to search the data to find the quake
Save the Time Span of an Earthquake
![Page 18: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/18.jpg)
We can also recreate the earthquake arrival.
![Page 19: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/19.jpg)
Recreate the Occurrence of an Earthquake
![Page 20: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/20.jpg)
Now we can stretch the quake to identify the waves.
![Page 21: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/21.jpg)
Stretch the Earthquake Waves
![Page 22: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/22.jpg)
Finally, we have several filtering options.
![Page 23: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/23.jpg)
Select a Filter
![Page 24: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/24.jpg)
Low Pass Filter
![Page 25: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/25.jpg)
High Pass Filter
![Page 26: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/26.jpg)
Enter Nodes for the Advanced Band Pass
![Page 27: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/27.jpg)
Advanced Band Pass Filter
![Page 28: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/28.jpg)
Frequency Spectrum
![Page 29: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/29.jpg)
The Future
• Test the program in Upper Peninsula schools
• Train volunteers to work with their local schools
• Provide one day training courses in conjunction with SEG, AAPG, AGU, IRIS, and other local societies
![Page 30: Earthquake Seismographs for Volunteers to Operate in K-12 Classrooms](https://reader036.vdocument.in/reader036/viewer/2022062500/5681500b550346895dbde6c5/html5/thumbnails/30.jpg)
Acknowledgments
• SEG Foundation
• Larry Ruff, University of Michigan