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Re: [Udig-dev] [udig-devel] GSoC'13 WR#2 – Hydrologically controlled landslides susceptibility tool for uDig
Dear Riccardo,

this mail is the most welcome since the concept of concentration time was exactly what took Cristiano and me the most of our meeting's time. t_c was something I had completely missed even in the second re-reading of the papers, mostly as was given as assumed in an educated reader (which I am not!)
So I will gladly go through those materials in the next days of the week and let all you know of any blocking issue.

The more people get involved in the project, the more I feel compelled to succeed! Gosh!

In the meantime, thank you again for this mail: I really appreciate it.


2013/7/3 Riccardo Rigon <rccrd.rgn@xxxxxxxxx>
Dear Marco,

in this moment I am out of town (actually in a summer school that could have been useful to you), and I am not able, I guess, to send out email with the account with which I am subscribed to the list. Feel free to forward the email I am sending to you to the mailing list if appropriate.

One source of information of Cristiano work is on-line here:


(papers included)

but what it is important for you  right now is to understand how water moves in hillslope (besides knowing about the stability problem, the second step).
For this task there are various presentation in my blog which regards my hydrology course,
 

but particularly I would suggest:


#13 in the course. 

Richards equation are actually not so important for your task, since you use some simplifications (on which I am talking tomorrow about: if they take a video, I will forward it to you ASAP). these were covered partially in this talk in Bologna:


At the very end I am also talking about some of the simplifications used by Cristiano from slide 64.

One concept you have to get is the one of concentration time (tempo di corrivazione in Italian): the timing at which the last molecule of water fallen in a catchment after a single instanteneous rainfall arrives at the outlet. I wrote  in Italian a comment that can help you, and is below my signature.

Rimango a disposizione per ogni chiarimento. Ad ogni modo anche Giuseppe Formetta che riceve in copia puo' essere di grande aiuto, essendo sia un conoscitore della fisica dei problemi che dei jgrasstools.

ric

Tempo di corrivazione [...]
 
[DESCRIPTION OF "CONCENTRATION TIME" FOLLOWED: STRIPED OUT FOR BREVITY] 

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