Latest discussion on water resource engineering software! http://www.bossintl.com/forums/ http://www.bossintl.com/assets/images/forums.gif http://www.bossintl.com/ 44 40 Visit bossintl.com
After I interpolate the corss sections, they appear in the geometry data page just how I want them.

However, after I go into the channel design/modification page and insert new templates into the template column and click the "Create a Geometry File with these Modifications," and click ok, and I go back to the geometry data page, the interpolations seem to have moved down the river and get pushed closer together too. The 3-D image verifies that that corss sections have moved. Also, it is only the interpolated cross sections that have moved, not the original ones. I am attaching a picture that show what the cross sections look like after I hit the "Create a Geometry File with these Modifications" button. You can see how the cross sections are bunched together when they should be spread out evenly.

So, I am just wondering if I am doing something wrong, and if I am, how can I fix this problem?

Thanks so much]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16648.html Fri, 12 Mar 2010 10:54:09 -0700 Operations Decision -> there is an allowance for 1 month time setp. But I believe this is only for operations decision. Any help in this regard is highly appreciated. Thanks, Satya Gala]]>
I am trying to develop a ResSim model to determine reservoir sizing. When trying to run a simulation, the maximum time step model allows me to use is 1 DAY. Can we run the model at 1 MONTH time step?

I know that we could run the model with monthly time step in HEC-5 but I can not seem to find it in ResSim.

In the reservoir editor ->Operations Decision -> there is an allowance for 1 month time setp. But I believe this is only for operations decision.

Any help in this regard is highly appreciated.

Thanks,

Satya Gala]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16623.html Thu, 11 Mar 2010 12:58:12 -0700 Operations Decision -> there is an allowance for 1 month time setp. But I believe this is only for operations decision. Any help in this regard is highly appreciated. Thanks, Satya Gala]]>
I am trying to develop a ResSim model to determine reservoir sizing. When trying to run a simulation, the maximum time step model allows me to use is 1 DAY. Can we run the model at 1 MONTH time step?

I know that we could run the model with monthly time step in HEC-5 but I can not seem to find it in ResSim.

In the reservoir editor ->Operations Decision -> there is an allowance for 1 month time setp. But I believe this is only for operations decision.

Any help in this regard is highly appreciated.

Thanks,

Satya Gala]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16647.html Thu, 11 Mar 2010 12:56:12 -0700 Has anyone used WMS from Aquaveo to create a HEC-RAS model? I am having some issues with cross sections appearing in really weird places.
Thanks,
Rob]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16646.html Wed, 10 Mar 2010 15:02:45 -0700 Strange ...]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16632.html Wed, 10 Mar 2010 02:53:11 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16632.html Wed, 10 Mar 2010 00:15:13 -0700 I hope that this new version will solve my problems !
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ...]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16645.html Tue, 09 Mar 2010 18:18:56 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16632.html Tue, 09 Mar 2010 10:32:38 -0700 you need to replace "subbasin" with "element" (this is what took me so long to figure out). A little tinkering and you should be able to figure it out. Like I said, I have no HTML experience at all and it didn't take long for me to figure out.]]>
Yes, I actually just used that old thread today, along with a little internet research to learn HTML and a few frustrating hours of trial and error, to create a simulation run style sheet. My advice is to do exactly what I just said. Go get the Italian versions, translate them to english, and then use the internet to learn a little bit of HTML. I only modified the simulation run style sheet so I can't tell you what is in the basin model style sheets. I will tell you two things, you cannot separate subbasins from reaches and so on, it will be one summary table with all elements (at least from what I can tell, I just learned a little HTML this morning so don't hold me to that) and second, in the line that reads:

-

you need to replace "subbasin" with "element" (this is what took me so long to figure out).

A little tinkering and you should be able to figure it out. Like I said, I have no HTML experience at all and it didn't take long for me to figure out.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16628.html Tue, 09 Mar 2010 09:25:55 -0700
I am trying to provide a no-rise certificate for a property owner. I received the approved HEC-RAS model of a bridge that is being built in the area from the county the property is located in. The model had an original, duplicate effective, corrected effective and proposed file. I am going to compare my model results to the proposed model to determine if there is a rise or not.

The 4 variations of the model I received all have cross section data in my area that is obviously incorrect. It appears that the cross sections downstream of this bridge have just been copied from the bridge cross section. These downstream cross sections show a significant amount of fill in the downstream sections that is actually just the bridge abutment from the sections upstream.

Would editing these sections to show existing conditions and running the analysis and comparing the results to the proposed model of the bridge be sufficient to prove that there is no rise?

Thank you in advance for any guidance.

Sandy]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16644.html Tue, 09 Mar 2010 08:34:04 -0700 Now i will try to setup my laptop on english regional standards (maybe a question of dot and commas ...)]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16632.html Mon, 08 Mar 2010 18:43:38 -0700 Me too, I am using HecRas 4.0.0 on a Win7 64bit machine but with a french OS !
I tried to move the files to a new repertory (ie : d:\teststorage\...) but i get the same error.
I tried also to change all the weirs as culverts, without success ...
I am trying to run the simulation on another laptop with vista ... maybe it will be successfull.
I am sure that its a bug about the french regional specific rating standards as dot or commas for decimal numbers ...
After simulation, everything seems ok in the DSS file (seen with DSS view).
grrrrrrrrrrrrrrrrrrr
I will give you news as soon as possible if i found an issue ...
Thanks a lot again.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16632.html Mon, 08 Mar 2010 08:27:33 -0700 background maps>add.. and locate the required shape file... u can also manage the colors and line styles etc from draw properties menu...]]>
I have shape file of basin in arcgis. How can i convert to .map extension so that i can be uploaded for background in HEC-HMS?

Thanks[/QUOTE]

you dont have to bother...you can add shape files as background images in HEC-HMs...just go to view>background maps>add.. and locate the required shape file...
u can also manage the colors and line styles etc from draw properties menu...]]> http://www.bossintl.com/forums/showthread/s/1/threadid/15776.html Sat, 06 Mar 2010 21:58:52 -0700
I'm having the same error report:

ERROR 40001: Could not retrieve surface flow data for subbasin "W690".
Data filename: C:/Documents and Settings/JJacob/My Documents/joão/GIS/HEC_Models/HEC-HMS/AljezurBasin/AljezurBasin.dss
Data pathname: //W690/FLOW-DIRECT//1MIN/RUN:Run 1/

I've loaded a time series data (precipitation gage) from an external .dss file. I wasn't able to do the manual entry. Don't know why.

I've tried to open the .dss from my project and DSSvue says that it doesn't exists. I think the problem resides here.

I'm a recent user of HEC-HMS and I don't know how to insert the the time series data into the .dss of the project.

Can anybody help me with this?

João Jacob]]> http://www.bossintl.com/forums/showthread/s/1/threadid/15986.html Fri, 05 Mar 2010 05:29:40 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16643.html Thu, 04 Mar 2010 10:47:14 -0700 Node-->Tank. And i set the "Base Demand" of node as zero. Then after running the analysis, the "Demand" of the tank exceeds its capacity (volume of the tank). How is this possible? Please explain.]]> Im currently doing an academic project which utilizes EPANET.
Im facing a problem...
When i make a simple model of one reservoir, one node and one tank, in the sequence Reservoir-->Node-->Tank.
And i set the "Base Demand" of node as zero. Then after running the analysis, the "Demand" of the tank exceeds its capacity (volume of the tank).

How is this possible? Please explain.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16642.html Tue, 02 Mar 2010 22:34:13 -0700 I think this is a bug of the code, since I tried in any ways to add a new sediment boundaru location and it doesn't work!
Good luck for your simulations!]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16423.html Mon, 01 Mar 2010 21:05:16 -0700 http://www.bossintl.com/forums/showthread/s/1/threadid/16641.html Mon, 01 Mar 2010 21:02:53 -0700 I tried to use a a huge storage area with a level corresponding to the level of the river to which the channel is connected.

When I'm trying tu run a steady flow simulation, Hec-Ras says:

"HEC-RAS Error - Incomplete data, the following errors were found:
Storage Area:"Rivière Kasai" - does not have initial elevations specified in the steady flow data."

In my downstream boundary conditions: Known WS
In my upstream conditions: storage area=openchannel
Flow: 22m³/s

I tried to put an Known WS for the upstream condition (storage area), but it's not working.

Anyone has an idea?

Thanks already!]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16640.html Sat, 27 Feb 2010 00:49:22 -0700
Thanks.]]> http://www.bossintl.com/forums/showthread/s/1/threadid/16636.html Fri, 26 Feb 2010 06:05:34 -0700