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NASA CSUN/JPL PAIR PROGRAM GLOBAL POSITIONING SYSTEM (GPS) THEORY, DATA ANALYSIS, & MODELING

NASA CSUN/JPL PAIR PROGRAM GLOBAL POSITIONING SYSTEM (GPS) THEORY, DATA ANALYSIS, & MODELING. Dr. Gerry Simila Department of Geological Sciences Drs. C. Shubin & W. Horn Department of Mathematics. 1994 NORTHRIDGE EARTHQUAKE. Magnitude 6.7

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NASA CSUN/JPL PAIR PROGRAM GLOBAL POSITIONING SYSTEM (GPS) THEORY, DATA ANALYSIS, & MODELING

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  1. NASA CSUN/JPL PAIR PROGRAMGLOBAL POSITIONING SYSTEM (GPS) THEORY, DATA ANALYSIS, & MODELING Dr. Gerry Simila Department of Geological Sciences Drs. C. Shubin & W. Horn Department of Mathematics

  2. 1994 NORTHRIDGE EARTHQUAKE • Magnitude 6.7 • Blind Thrust Fault (previously unknown) • 40 cm Vertical Uplift (north of CSUN) • CSUN Damages = $350 million • Most Costly Natural Disaster ($20+ billion) • Catalyst for 250 GPS Network (SCIGN)

  3. 1994 Northridge Earthquake

  4. CSUN Parking Structure

  5. OBJECTIVES • Students are introduced to the basic concepts of GPS, Plate Tectonics, and Earthquakes. • Students will use several software packages for data analysis: EXCEL, MATLAB, and JPL’s DISLOC & GPS/GIPSY programs. • Student’s will apply their knowledge to analyze and model GPS data for earthquake displacements. • Student’s learn about current GPS research project from guest speakers – lecture series.

  6. COURSE FORMAT • Course format was 12 days in duration. • Class instruction/analysis was 6 hours/day. • Lecture in the morning and data analysis in the afternoon. • Computer program instruction in afternoon lab.

  7. CONTENT • Week 1 • Week 2 • Week 3

  8. WEEK 1 • MORNING: 1) Plate Tectonics, Faulting, and Earthquakes 2) GPS Concepts (coordinate system, reference systems, lat. & long., map scales); 3) GPS Measurements and Time Series Analysis; 4) Introduction to Stress and Strain; 5) GPS and Northridge Earthquake; 6) Earthquakes, Faulting, and Earthquake Double Couple Mechanism and Seismic Moment; 7) Elastic Crack Fault Models of Okada/ DISLOC (C. Shubin).

  9. WEEK 1 • AFTERNOON: GPS Data Analysis (EXCEL); JPL/SCIGN web site Exercise; NASA Mission Mathematics (C. Shubin); Introduction to MATLAB; Stress/ Strain Analysis (EXCEL) •  HOMEWORK: Mathematical exercises were assigned for content topics on GPS, earthquakes, stress, and strain.

  10. WEEK 2 • MORNINGS: MATLAB and Finite Element Modeling(W. Horn); Fault Modeling (DISLOC) and Tectonics; GPS Analysis and GIPSY (Dr. Ken Hurst, JPL). • AFTERNOONS: Software programs (MATLAB, GIPSY) operations. • HOMEWORK: GPS Analysis and Fault Modeling.

  11. WEEK 3 • Student Research Project: GPS data modeling for the 1994 Northridge earthquake using MATLAB and DISLOC. • Student Presentations • JPL tour

  12. CHALLENGES • Course designed for science and math students with varied majors and background courses. • Synthesizing the content material for students. • Time schedule for content and student project. • Student enthusiasm for intensive course.

  13. GPS COURSE IMPLEMENTATION • Part of GEOL 460 & 464 (Theoretical & Applied Geophysics) • Part of ES300 (Earth Science) Pre-service teachers • Proposed GEOL 595-GP Special Topics

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