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Field Geophysics Course in Blythe, California: IAP 2004

Join the 12.221 Field Geophysics course led by Instructors Tom Herring and Brad Hager at MIT. The field camp will occur near Blythe, California, focusing on relative GPS monument motions and subsurface structure modeling through gravity measurements. Students will participate in a pass/fail grading system, emphasizing field camp engagement and a final project or oral presentation. Required materials include tents, boots, and notebooks. Prepare to explore geophysics in the field while collaborating with peers.

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Field Geophysics Course in Blythe, California: IAP 2004

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  1. 12.221 Field Geophysics Instructors Tom Herring, tah@mit.edu; Brad Hager brad@chandler.mit.edu Web: http://www-gpsg.mit.edu/~tah/12.221 12.221 IAP Class 1

  2. Aims of IAP 2004 • Field camp location near Blythe California. Approximate location latitude 33.75 N, Longitude 245.3 E (-114.7 W) • Two main objectives • Relative motions of GPS monuments in the region • Development of sub-surface structure model based on gravity measurements 12.221 IAP Class 1

  3. Class Conduct • Course is pass/fail grading • Grade will be based on field camp participation and the final project/Oral presentation. • Final Paper should be ~10 double spaced pages long. Paper will present analysis of data collected at field camp. • Working in teams is acceptable but final report must be each students individual work. 12.221 IAP Class 1

  4. Items needed for camp • Valid picture ID (Drivers License or passport) • Tent, Sleeping bag (40 deg nighttime temperatures), ground sheet • Sturdy boots • Sturdy water bottle • Hat for sun protection • Flashlight • Sun block moisturizer • Field notebook, pens, calculator • Clothing for 7days (layering). Daytime temperatures will be in mid-70s. • See Web page for complete list • Laptop computer and/or camera (optional) 12.221 IAP Class 1

  5. Flight Itinerary • Depart Logan Airport: Delta 565/3949 6:50 AM, Friday Jan 9, to Palm Springs via Salt Lake City. Arrive Palm Springs 12:06 PM. Drive directly to field camp. • Meet in 54-611 at 5:00 am Friday morning • Return: Delta 652/463 9:00 AM Friday Jan 16, to Boston via Atlanta. Arrive Logan airport 7:40 pm 12.221 IAP Class 1

  6. Class schedule this week • Tues: 10:00 am 54-322 Introduction to GPS • Reading list: Herring, Geodetic Applications of GPS, Proc. IEEE, 87, 92-110, 1999. McClusky et al., Present Day Kinematics of the ECSZ, Geophys. Res. Lett, 28, 3369-3372, 2001 http://www.scec.org • Wed: 10:00 am 54-322 Introduction to gravimeters • Thur: 10:99 am 54-322: Examine existing data in the region • Friday: Depart for field camp • Meet Wed-Friday of week following camp 12.221 IAP Class 1

  7. Topics to be covered • Applications of the global positioning system: We will use • “Kinematic” GPS to do ~10 mm positioning of a moving antenna (gravity) • “Static” GPS to do sub-mm positioning (tectonics) • Gravity measurements for inferring sub-surface characteristics • Modeling of gravity by analytical/numerical integration. 12.221 IAP Class 1

  8. Your Activities for today • In addition to reading the two papers cited earlier: • Find out what you can about GPS data and results obtained in near Blythe California • Prepare a 1-page summary for submission tomorrow. (Summary should also be emailed with links included). 12.221 IAP Class 1

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