GG 304: Physics of the Earth & Planets
Instructor: Garrett Ito (firstname.lastname@example.org, POST 810, office hours: Tue/Thu 4:00-5:00 p.m.)
T.A. and Lab Instructor: Ashton Flinders (flinders@ hawaii.edu)
Prerequisites: calculus and introductory physics
Textbook: Fundamentals of Geophysics by W. Lowrie
·Improve abilities in independent reasoning and problem solving, with emphasis on physics
·Enhance oral communication and team work skills
·Emphasize the use of the scientific method and effective writing skills with laboratory exercises
·Improve skills in mathematics, physics, and computer programming
·Provide firsthand experience with geophysical methods of measuring Earth structure.
·Class time/place: 9:30 am – 10:20 pm, MWF, POST 708
·Class format: About 1/3 lecture (usually Mon.) and 2/3 class discussion (usually Wed. & Fri.), focused on reading and homework assignments. ASK QUESTIONS and do not leave class until your questions are answered.
·Homework: Homework assignments are expected to be done by the date designated for discussion and will be turned each Friday. I encourage you to work together on the problems but it is required that the work turned in is yours and yours alone. Thus in all of your homework write-ups, it is important to make your own reasoning clear. This includes writing explanations to equations and explaining why you think your answers are correct or not correct. Little credit will be given to unsupported solutions. Here are steps for producing an excellent geophysics homework solution:
(1) Write down the information (e.g., known variables) given
(2) Draw a picture when appropriate
(3) Identify the pertinent governing equations and/or derive equations necessary to solve the problem. Briefly summarize (a few words is often sufficient) what the equations mean and/or why you use these equations.
(4) Solve the equations.
(5) Check your answer. Check units. Does your answer make physical sense? Why? Why not?
BUG the instructor (or TA) with questions. If you don’t ask, I’ll assume you understand everything.
·Laboratory work: Tuesdays 1:30–4:20 pm, POST 733. Labs will involve field experiments (using seismometers, gravimeters, etc.) as well as computer programming and analysis. Lab assignments are due the following Monday at the beginning of the lab.
·Late Homework/Lab policy: You have 3 ”grace days” for late homework and 3 grace days for late lab reports. That is, you can turn in a total of three assignments a day late, or one assignment three days late. Assignments turned in late without ”grace credit” will be penalized by 20% per day. Weekends count as 1.5 days.
·Grading Policy: Homework: 35%; Labs: 25%; Exams: 25%; Class participation: 15%
Working Course Syllabus
Mon. 1/12 Physics: kinematics & dynamics for linear and rotational motion
Wed. 1/14 Discuss HW1A
Fri. 1/16 No class (storm warning)
Chapter 2. Gravity and figure of the Earth
Mon. 1/19 Martin Luther King Jr. Day Holiday
Wed 1/21 Discuss Lowrie section 1.1 and HW1B
Fri 1/23 Lecture: rotational motion, forces, torques, and energy
Mon 1/26 Discuss 2.1-2.2 & HW2
Wed 1/28 Earth’s rotation, shape, tides, and gravity
Fri 1/30 CRUISE: The boat leaves port at 8:00 a.m. Discuss 2.3-2.4 & HW3
Sat 1/31 CRUISE: Earth’s shape, gravitational potential & acceleration field
Sun 2/2 CRUISE: Gravity anomalies
Mon 2/1 CRUISE: Interpretation of gravity anomalies
Wed 2/4 CRUISE: Arrive port at 8:00 a.m. and do final gravity tie.
Fri 2/6 No class
Mon 2/9 No class
Tue. 2/10 No lab
Fri 2/13 Discussion and review for exam
Chapter 3. Seismology and the internal structure of the Earth
Mon 2/16 Presidents’ Day Holiday
Tue. 2/17 No lab.
Wed 2/18 In-class problem set 1 and HW 1-5 revisions due
Fri 2/19 Elasticity theory/Seismic waves
Mon 2/23 Seismic waves and energy propagation
Wed 2/25 Discuss 3.2, 3.3 & HW6A
Fri 2/27 Discuss 3.3 & HW6B
Mon 3/2 Earthquake seismology
Wed 3/4 Seismic wave propagation: Reflections and refractions
Fri 3/6 Discuss 3.4-3.5 & HW7
Mon 3/9 Seismic wave propagation: Probing Earth Structure, Read Robinson & Coruh Handout p. 39-50
Wed 3/11 Discuss 3.6.1-3.6.5 & Hw8A
Fri 3/13 Discuss 3.6.1-3.6.5 & Hw8B
Mon 3/16 Review for exam
Tue 3/17 Lab 8: Kualoa Seismic survey
Wed 3/18 In-class problem set 2 and HW 6-9 revisions due
Fri 3/20 No Class
Mon 3/23 Spring Break
Wed 3/25 Spring Break
Fri 3/27 Spring Break
Mon 3/30 No Class
Wed 4/1 Geomagnetism: Magnetic dipole: Lowrie pp. 281-287; 305-320
Fri 4/3 Geomagnetism & Earth’s Magnetic Field
Mon 4/6 Geomagnetism & Earth’s Magnetic Field
Tue 4/7 Lab 8: Seismic survey interpretation
Wed 4/8 Discuss HW9
Fri 4/10 Good Friday Holiday
Mon 4/13 Magnetic field anomalies, Lowrie pp. 274-279
Tue 4/14 Lab 9: Kualoa Magnetics Survey
Fri 4/17 Total magnetic field anomaly over a dipole, Discuss HW10B
Mon 4/20 Earth’s Heat- Heat flow and the energy equation, Based on Fowler Handout p. 219-226
Wed 4/22 Heat flow, Discuss HW11A (based on Fowler Handout p. 219-226)
Fri 4/24 Continental geotherms, Discuss HW11B (based on Fowler Handout, p. 226-230)
Mon 4/27 Earth’s Heat
Tue 4/28 Lab12: Interpretation of KM0903 magnetics data
Wed 4/29 Discuss Fowler pp. 232-243 (omit 235-236), HW12A
Fri 5/1 Discuss HW12B
Mon 5/4 Global Heat and Mantle Convection
Wed 5/6 Review
Wed. 5/13 In-class problem set 3 (Final Examination 9:45-11:45) and HW 10-14 revisions due