Search found 8 matches

by ritadg
Fri Jan 31, 2020 12:42 am
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Re: Error: initial water content condition is lower than Qr

Hi Jirka,

I'd like to know if this equation of partitioning of the initial water content in the mobile and immobile region is in any HYDRUS manual or where I could find it.

Best,
Rita
by ritadg
Tue Jan 21, 2020 5:59 am
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Re: Error: initial water content condition is lower than Qr

Dear Jirka, Thanks a lot for your elucidation. Indeed, the first mistake was obvious. I didn't pay attention to that as I was used to model only with single porosity. The second thing I didn't know that the initial water content is proportionally divided into mobile and immobile (which makes sense)....
by ritadg
Fri Jan 17, 2020 3:13 am
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Re: Error: initial water content condition is lower than Qr

Hi Jirka, I haven't zipped before :shock: Now I'm sending my Hydrus run that is having this error: "Initial water content condition is lower than Qr ! " I also included three more files with the .txt inputs (changing only soil parameters - thr, ths, Alfa, n, Ks, l, thrIm, thsIm, Omega - and LAI), th...
by ritadg
Wed Jan 15, 2020 11:38 pm
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Re: Error: initial water content condition is lower than Qr

Hi Jirka,

Again, I thank you for your prompt reply.
I tried to attach the project but I'm not able to attach this kind of extension here.
How do you think I could send it to you?

Best,
Rita.
by ritadg
Wed Jan 15, 2020 10:42 pm
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Re: Error: initial water content condition is lower than Qr

Thanks Jirka, Yes, it is weird. I gave a close look into the parameters from the runs with this error but I couldn't find a relationship between them. For example, I thought maybe high theta r from both mob and immobile parts combined with a high LAI could be generating this error. Or maybe high the...
by ritadg
Wed Jan 15, 2020 12:08 am
Forum: Hydrus 1D
Topic: terminating not converging Hydrus runs
Replies: 6
Views: 6072

Re: terminating not converging Hydrus runs

Thank you for your reply Jirka.
(It took me ages to see it, I'm sorry)
by ritadg
Wed Jan 15, 2020 12:06 am
Forum: Hydrus 1D
Topic: Error: initial water content condition is lower than Qr
Replies: 10
Views: 2444

Error: initial water content condition is lower than Qr

Dear Hydrus community, I'm using HYDRUS-1D version 4.14 in the dual porosity model (mobile-immobile, water content mass transfer). I'm modeling water flow, upper BC: atmospheric BC with surface run-off, lower BC: free drainage. I run Hydrus through Matlab. I'm generating parameter sets, by giving th...
by ritadg
Wed Nov 06, 2019 4:19 am
Forum: Hydrus 1D
Topic: terminating not converging Hydrus runs
Replies: 6
Views: 6072

Re: terminating not converging Hydrus runs

Hi all! I'm running HYDRUS-1D in Matlab and I'm also running Monte Carlo simulations using randomly generated soil parameters (given an upper an lower limit for each parameter). Some runs takes ages (more than 20 minutes) for then get to a no converging solution. Does anyone have this code that auto...