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Geomorphology GLG362/598 Instructor: Kelin X. Whipple, kxw@asu.edu, ISTB4-777 (5-9508) TA: Emily Zawacki, eezawack@asu.edu, ISTB4-603 Office Hours – just.

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Presentation on theme: "Geomorphology GLG362/598 Instructor: Kelin X. Whipple, kxw@asu.edu, ISTB4-777 (5-9508) TA: Emily Zawacki, eezawack@asu.edu, ISTB4-603 Office Hours – just."— Presentation transcript:

1 Geomorphology GLG362/598 Instructor: Kelin X. Whipple, ISTB4-777 (5-9508) TA: Emily Zawacki, ISTB4-603 Office Hours – just make an appointment Your Info (please jot down and hand in) Year and Primary Interest (major/research focus) Math/Physics/Geomorphology background Software experience (ArcGIS, Excel, Matlab, SSH) Own a laptop for in class use? If yes, prefer local install Aps? Rec: bring to lab Reminder LAB: 12:55-2:55 Wed in PSH461

2 Geomorphology GLG362/598 Process-based instruction.
Textbook is complementary. I do not survey different landscapes (desert, coastal, permafrost, alpine, etc): Hillslopes, Channels (glaciers), +/- Floodplains Teach how to think about all landscapes How to read a landscape, how to proceed with a quantitative analysis Project-based course Hydrology; Hillslopes and Channel Heads; Alluvial Fans; Fluvial Processes; Landscape Evolution Project Reports (no exams) Every other lab -- 4 page (single, 12 point) plus figures, maps, cross-sections, calculations. START EARLY, STAY ON SCHEDULE

3 Geomorphology GLG362/598 Field Trips Practical Skills
Depart EARLY – 7:30am; We Provide Vehicles; No Make Ups #1 Sept 8-9 (Camping); Flagstaff Volcanic Field #2 Sept 30 (Sat); Verde River Hydraulics Practical Skills ArcGIS, Matlab/Excel, Jupyter Notebooks Airphoto Interpretation/ Mapping Surficial Units Surveying (basics) Stream gaging DEM Analysis 30% Grads: same exercises, different expectations

4 Geomorphology GLG362/598 Textbook Class Website (not Blackboard)
Geomorphology: The Mechanics and Chemistry of Landscapes, Anderson and Anderson, Cambridge University Press, 2010. Class Website (not Blackboard) Motivations for Study of Surface Processes First Wave Climate Science Completed: climate is changing, causes known Second Wave Coming: what are consequences, how respond? Landuse Change plausibly even more dramatic Prediction: Need Quantitative Understanding of Processes / Record of Past Conditions/Responses Earth System Response to Past Changes? Seismic Hazard Assessment Record of Past Conditions (Tectonics, Climate) Preserved in Landscapes: Long Term Landscape Evolution

5 Geomorphology GLG362/598 Labs
First Lab Wednesday, Rm H461 Topic is Landuse and Hydrology Learn to Use ArcGIS Lab 1 has 3 parts, Lab 1a deliverable due this Friday (nothing major – just need to keep pace with learning Arc) The Weekend’s Homework Read Chapter 1 (pg 3-9) and Essay on “Landscapes and Geologic History” by Allen (3p), posted on class website ( Class Discussion: Start with Written Questions, then please hand in your questions

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7 Overview/Guidelines (Chapter 1)
Many interacting processes: wind, rain, runoff, ice, heat/cool, freeze/thaw, chemical attack – all modualted by life; all event-driven, variable Our Approach: Conservation (of mass [water, sediment, atoms], energy, momentum) Transport Rules (flow of water ice, transport of sediment, etc) Event Size, Frequency and Duration (storms, floods, climate variations, etc)

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9 Video of One Year’s Weather

10 Runoff vs Rainfall

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20 Taiwan Geology and Topography – 3D

21 Taiwan Cross-sections

22 Taiwan Cross-sections

23 Taiwan Geology and Topography – 3D

24 Sandbox Experiment, with Erosion
“Erode” (slice with a knife) to maintain a critical taper

25 Orogenic WedgeTheory: Strong Climate-Tectonics Coupling
Mechanics of Deformation: Theory for Control of Orogen Width; Strain Concentration Stolar et al, 2006 Penrose Volume

26 DESERT JUNGLE Deflected Rivers ~12m Annual Rainfall

27 TRMM Rainfall Map

28 Numerical Simulations: Strong Climate-Tectonics Coupling
Beaumont et al., 2001 Nature Willett, 1999 JGR

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