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Earth Surface Oblate Spheroid = Largest Topo Feature of Earth

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Presentation on theme: "Earth Surface Oblate Spheroid = Largest Topo Feature of Earth"— Presentation transcript:

1 Earth Surface Oblate Spheroid = Largest Topo Feature of Earth
Course Notes: 1.2

2 Hypsometry, the Continental Freeboard, and Isostasy
Hypsometric Curve = 2nd Largest Topo Feature of Earth Course Notes: 1.2

3 Ocean Basin Shape / Seafloor Bathymetry
Ocean Basin Shape = 3rd Largest Topo Feature of Earth Course Notes: 1.2

4 Crustal Thickening – e.g. Tibet
Course Notes: 1.2

5 Rock/Surface Uplift, Flexural Isostasy, Crustal Loading
Course Notes: 1.2

6 Fault Scale Tectonic Geomorph and Paleoseismology
Course Notes: 1.2

7 Glacial Processes – Mass Balance
Bench Glacier, AK – June 2000 Bench Glacier, AK – September 2000 Course Notes: 1.2

8 Glacial Flow, deposits, and landforms
Course Notes: 1.2

9 Periglacial Processes / Freeze-Thaw
Course Notes: 1.2

10 Convex Hilltops, Hillslope Diffusion
Course Notes: 1.2

11 Regolith Production, Landsliding
Course Notes: 1.2

12 Runoff, Drainage, Catchments
Course Notes: 1.2

13 Turbulent Flow, River Velocity Profiles
Turbulent Laminar Course Notes: 1.2

14 Fluvial Sediment – Bedload, Suspended Load, Flood Plains
1952 McMurdo Basin, Columbia River, B.C. 1988 Course Notes: 1.2

15 Fluvial Incision of Bedrock
Course Notes: 1.2

16 Waves and Coasts – Erosional Features
Course Notes: 1.2

17 Waves and Coasts – Depositional Features
Course Notes: 1.2

18 Submarine canyons – Monterey canyon Origin?
Course Notes: 1.2

19 Geomorphic Evolution -Multiple Climate Cycles
River terraces – geomorphic markers Wind River, Wyoming Course Notes: 1.2

20 Guiding Principle #1: Conservation of …
Mass Energy Momentum Course Notes: 1.3.1 A&A Chap. 1

21 Guiding Principle #2: Transport Rules
Process Geomorph involves movement of material – ice, water, air, sediment, piles of rocks, etc. Rates of material motion are influenced by stresses – e.g.’s: Water flowing downhill: velocity increases with greater slope. Compost decay rate increases with ambient temperature. Rate of people entering a football game increases with internal crowd roar. Course Notes: 1.3.2 A&A Chap. 1

22 Guiding Principle #2: Transport Laws
Time scales of motion / rates for different materials can vary several orders of magnitude within the same environment: Ice Sheet example – katabatic winds, meltwater streams, glacial flow, mantle flow. Course Notes: 1.3.2 A&A Chap. 1

23 Guiding Principle #3: Timing and Magnitude of Geomorphic Events
Jokoklaup (glacial outburst flood) Kennicott River, Alaska Course Notes: 1.3.3 A&A Chap. 1

24 Guiding Principle #3: Timing and Magnitude of Geomorphic Events
Fire in Geomorphology Tuttle Creek Fan, Eastern CA Course Notes: 1.3.3 A&A Chap. 1

25 Guiding Principle #3: Timing and Magnitude of Geomorphic Events
Estimated wind speeds at 192 mph – broke every anemometer in the valley. Windstorm December San Joaquin Valley, California Course Notes: 1.3.3 A&A Chap. 1

26 Guiding Principle #3: Timing and Magnitude of Geomorphic Events
Course Notes: 1.3.3 A&A Chap. 1

27 Whole Earth Shape: The Oblate Spheroid
Phobos: ~27 km across, potato-shaped Earth: ~13,000 km across, spheroid-shaped Course Notes: 1.8 A&A Chap. 2

28 Global Hypsometry Course Notes: 1.9 A&A Chap. 2

29 Continental Freeboard and Isostasy
Course Notes: 1.9 A&A Chap. 2


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