Q1: What is the driving force for the geomorphologic evolution? How does the driving
force affect the geomorphologic evolution?
The driving force for this geomorphologic evolution is soil creep, No. The fundamental driving forces are tectonic activity and gravity. Soil creep occurs because of gravity. or the diffusive property of soil. This force causes the slopes of the simulated terrain to steadily decrease, making the crest of the ridge much lesser in elevation and moving the terrain towards a state of flatness.AndNext time, rather than sending figures as a seperate files, include only graphs to support your argument in your report. 2/3
Q2: Describe the effect of the diffusivity coefficient on the geomorphologic evolution.
The diffusivity coefficient controls the height of the initial uplift (this is also an effetive of the erosion), to some degree, but most greatly determines how quickly the initial uplift is smoothed out. A higher coefficient of diffusivity flattens uplifts much quicker than a low diffusivity coefficient, as evidenced by the temporal profiles of the two uplifts. Next time, mention some specific numbers extracted from your graphs to support your argument quantitatively. 2.5/3
Q3: Plot two temporal profiles at x = 0.5. 3/3
Q4: Compare two geomorphologic structures, and explain why they are different.
Unfortunately the plot has reversed one of the temporal profiles (What do you mean by reverse? Please show me). However, with a little bit of cleverness, one can see that if there is persistent uplift, the terrain remains quite elevated for a time, and then drops precipitously.Not correct. You are seeing gradual incraese of height for the step uplift source. Aha, you are reading the graph in a reversed time axis.) What is occurring is since the soil diffusivity is the same as the model of a soil that flattens out without uplift, much of the soil is creeping down the slope. The main thrust of the terrain is uplifted again, yet this spike becomes narrower and narrower as the soil dredges down the slopes. Eventually the amount of soil lost counterbalances the amount of uplift, producing a flat landscape. 1/3
8.5/12 = 7.1