×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

HEC-HMS: large .DSS file

HEC-HMS: large .DSS file

HEC-HMS: large .DSS file

(OP)
HEC-HMS (using ver. 3.2) creates a .dss file that is usually quite large (77 MB).  If you try to send a HEC-HMS model to somebody electronically, it seems that you have to send this large dss file also, as it contains important data.

Does anybody know a way to reduce the size of this .dss file?  

Or a better question may be, am I even on the right track here?

Any help would be appreciated.

RE: HEC-HMS: large .DSS file

version 3.3 - I have an approximately 30 square mile drainage area with approximately 40 sub-basins and the dss file is just over 3 MB. Why is yours so large?

RE: HEC-HMS: large .DSS file

(OP)
I'm wondering the same thing!  I'm going to try to play with it to see what's going on...

RE: HEC-HMS: large .DSS file

Every time you run the model the flow, stage, total rainfall, excess rainfall, and every other kind of time series for every element is saved to the DSS file.  If you change or add an element or change the run name, a separate set of time series is created and the old ones are not deleted.  So, the more you run, the more you change the model, the more name changes you make, and the longer the model runs the larger the DSS file will grow.  

The size of the DSS file can be controlled using HEC-DSSVue.  Open the DSS file with HEC-DSSVue and delete all the outdated records.  Then "squeeze" the file to permanently remove the deleted data to decrease the file size.  Just be careful not to delete the paired data, or input time series data used to execute the model.

The initial size of the DSS, without any results, is really independent of the number of basins.  No basin data is stored in the DSS file.   Only time series and paired data are stored in the DSS.  

http://www.hec.usace.army.mil/software/hec-dss/hecdssvue-dssvue.htm
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources