Search found 151 matches

by frank.maretec@ist.utl.pt
Wed Jan 09, 2013 12:34
Forum: MOHID Water
Topic: Freshwater discharge problems - Salinity?
Replies: 1
Views: 2769

Re: Freshwater discharge problems - Salinity?

Dear MOHIDer, from your input data files, I can't see any problem. If I understood right, you want to reach equilibrium conditions in the Estuary. Please be aware that you can only reach equilibrium conditions if the boundary conditions are also constant. So if you would run the model with constant ...
by frank.maretec@ist.utl.pt
Wed Jan 09, 2013 12:24
Forum: MOHID Water
Topic: forrtl: error (65): floating invalid / pow_ct.c
Replies: 2
Views: 5881

Re: forrtl: error (65): floating invalid / pow_ct.c

Dear Christian, your setup is to complex to give a straight answer. It seems indeed to be a numerical issue. I recommend that you switch of all processes (wind, discharges, baroclinic) and start to switch them on one by one, so you can get a better idea where the problem comes from. When the model c...
by frank.maretec@ist.utl.pt
Wed Jan 09, 2013 12:13
Forum: MOHID Programming
Topic: Build Solution - Error
Replies: 7
Views: 11349

Re: Build Solution - Error

Hello,

this most probably has to do with some multi thread options (and libraries) to use. This is always tricky, but surely resolvable...

Did you try to compile the configuration Release Double OpenMP?

Also try to check here:
http://software.intel.com/en-us/forums/topic/279258

Best regards,
Frank
by frank.maretec@ist.utl.pt
Thu Apr 26, 2012 16:55
Forum: MOHID Land
Topic: Discontinuities
Replies: 4
Views: 6403

Re: Discontinuities

Dear Adrien, if you discharge flow along a channel, flow should be constant, if, and only if, all water is routed through the channel. It may happen, in MOHID Land, that the flow rate exceeds the channel transport capacity and water is partially routed "overland". You can verify if this oc...
by frank.maretec@ist.utl.pt
Thu Apr 26, 2012 11:05
Forum: MOHID GIS (discontinued)
Topic: [Resolved] Problem to visualize simulation results HDF5
Replies: 3
Views: 8698

Re: Problem to visualize simulation results HDF5

Dear Matthieu,

also check if you added the correct information to the ConnectionX and Y info.

If you switch to MOHID Studio, you will find a detailed user guide which explains how to display MOHID HDF files.

Best regards,
Frank
by frank.maretec@ist.utl.pt
Mon Apr 09, 2012 08:24
Forum: MOHID GIS (discontinued)
Topic: Error Creating the Digital Terrain
Replies: 1
Views: 7089

Re: Error Creating the Digital Terrain

Dear Johannes, when you are using MOHID GIS you must run it as administrator, in order to have access to read / write on special folders. I beleave that you error is related with this. Did you try already MOHID Studio? Download: http://www.actionmodulers.pt/default.aspx?canal=33 Video showing creati...
by frank.maretec@ist.utl.pt
Wed Feb 01, 2012 11:15
Forum: MOHID Land
Topic: Porous media tool -- Max slope
Replies: 3
Views: 6269

Re: Porous media tool -- Max slope

Dear Ane,

please check page 81 of MOHID Studio's User Manual.

Best regards,
Frank
by frank.maretec@ist.utl.pt
Thu Jan 26, 2012 14:53
Forum: MOHID Land
Topic: Drainage Network
Replies: 13
Views: 11890

Re: Drainage Network

Dear Cecile, The error you get does not have anything to do with the downstream boundary conditions. It states that there is a mismatch between the DrainageNetwork you are using and the DrainageNetwork you obtained during basin delineation. This usually occurs in two cases: 1. Your basin geometry fi...
by frank.maretec@ist.utl.pt
Thu Jan 26, 2012 14:44
Forum: MOHID Land
Topic: Water initial conditions
Replies: 2
Views: 6150

Re: Water initial conditions

Dear Ane, all, if you active the START_WITH_FIELD option (which I advise), the model will calculate in the beginning, independent of the Theta Value you provide, the theta values in a way that the soil water content is in equilibrium conditions above the water table. Equilibrium = balance between so...
by frank.maretec@ist.utl.pt
Wed Jan 04, 2012 14:32
Forum: MOHID Land
Topic: Non compute polygons
Replies: 8
Views: 9484

Re: Non compute polygons

Dear Ane, yes, it's right. The accumulate values are only for precipitation (if provided in mm instead of mm/h). All other properties should have accumulate set to false. If you have 10min data, use it! The model will not run slower because of this (Model time step is shorten then 10min, at least du...
by frank.maretec@ist.utl.pt
Wed Jan 04, 2012 12:29
Forum: MOHID Land
Topic: Non compute polygons
Replies: 8
Views: 9484

Re: Non compute polygons

Dear Ane, in the DTM, -99 indicates non compute points. They can only exist in the outer part of the catchment. You can't create "holes" inside your catchment. You are right about the calculation. It's only done inside the delineated area. There is a especial case. You can set the keyword ...
by frank.maretec@ist.utl.pt
Tue Dec 06, 2011 11:54
Forum: MOHID Land
Topic: Discharges
Replies: 18
Views: 18033

Re: Discharges

Dear Ane, in this case I assure that MOHID Studio does not have a bug ;-) I'm using this configuration since a lot of time and it works well. Please be aware that the Nomfich Files are only created, right before you launch the simulation. So after adding the Discharge Module to the simulation, the n...
by frank.maretec@ist.utl.pt
Fri Dec 02, 2011 16:05
Forum: MOHID Land
Topic: Drainage Network
Replies: 13
Views: 11890

Re: Drainage Network

Dear Cecile, you have four options for the downstream boundary. DOWNSTREAM_BOUNDARY : 0 -> Dam. No water passes DOWNSTREAM_BOUNDARY : 1 -> Zero depth gradient. Slope of the last reach remains constant. Works bad if you are using hydrodynamic aprox 2 or 3 DOWNSTREAM_BOUNDARY : 2 -> Critical Depth. Fl...
by frank.maretec@ist.utl.pt
Wed Nov 09, 2011 11:00
Forum: MOHID Land
Topic: Hydrodynamic_ Approx
Replies: 3
Views: 6547

Re: Hydrodynamic_ Approx

Dear Cécile, just one more input. If your problem presists, you can reduce the "TIME_STEP_SPLIT" in module Drainage network. This is something new I implemented and speeds up significantly model performance, but has the risk that you run into the problem you faced. So, if the problem presi...
by frank.maretec@ist.utl.pt
Wed Nov 09, 2011 09:26
Forum: MOHID GIS (discontinued)
Topic: Curvilinear grid algorithm
Replies: 2
Views: 7908

Re: Curvilinear grid algorithm

Dear Nadya,

if I'm not mistaken, the code MOHID uses is from Pavel Sakov. You can find some informations here:

http://code.google.com/p/gridgen-c/

Best regards,
Frank

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