Comments - please comment here
From GeoMod
It looks very impressive. It seems that the University is in some trouble. Did your algorithm account for vegetaion holding material in place? There does seem to be the need to have some water flowing out fo the area as well. At the beginning of the project you mentioned that you were using the dem as a closed system with no outflow. I think that may influence your results as well. Daniel Neilans
--In the class project, I just want to simplify the work as much as possible. For a full conceptual, I need include the soil information and model the infiltration as well as outflow. And the effects of drainage system should not be overlooked too. That's I want to do in next step, hopefully. Jianchen
The best thing in your project i like is the comparison between the two methods. In your presentation the graphs from both the methods are showing almost same results. Still if you had given choice which method will you prefer in actual conditions given. One more thing did you tried at some other location in your topography to see the difference between these two methods?? --Ekta2 14:23, 7 Dec 2005 (CST)
--I'm not sure which is better, but gravity gradient algorithm is developed by myself though it is simple. Value of trigonometric function sometime changes dramatically, and it might be the limitation of gravity method, especially when time step is not small enough. Open channel energy equation has been widely accepted and used. The difference between these two methods is not lie on different place but different time step. I have tried several places and got similar performance. But when I change the time step (usually increase the time step), some time gravity one might higer than energy one some time the opposite. The recommended time step for my project is 0.2 second or less. Jianchen
This project seems as though it could be very useful to alot of people in alot of places, I liked that you took a look at UofM it really brings the project home. Brad
I really enjoyed your presentation in class. I didn't exactly understand why you couldn't model it for the whole area. What were your limitations here? Krista
Jian Chen, do you think that you could use location of higher density people at low elevations around the campus to determine risk??
