SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
Top Content
Latest Activity
Robert Dickinson commented on Robert Dickinson's group 'ExtraVariables'
QA/QC version based on v22 of EPA SWMM 5 with the ability to read older SWMM 5 OUT files.
swmm5.dll
Epaswmm5.exe
Robert Dickinson commented on Robert Dickinson's group 'Stream of Information'
Video: How Snowflakes Are Formed
February 4th, 2012 | Posted by Jaime Menchén in Science Videos
This time-lapse video lasts 11 seconds, with no music or voice-over. And still you’ll want to see it over and over again. The…
Photo posted by Robert Dickinson
This is a galaxy
This is a galaxy. Or is it? A remix of material originally produced for BBC Stargazing Live 2012 If you liked this video, follow me on twitter to hear about ...
Video posted by Robert Dickinson
Fateme Fallah replied to Fateme Fallah's discussion 'Uncertainty Analysis'
Dear Lionel,
This matter is explained in Appendix D of SWMM manual under the title of “Command line SWMM”. So in MATLAB you can use below format under DOS window:
"The address of place that SWMM is there" input…
Robert Dickinson commented on Robert Dickinson's group 'Stream of Information'
Now the new images, courtesy of the Suomi NPP satellite (2012):
The above two photos are pretty much what you would see with your naked eyes if you were at the altitude of this satellite. It's humbling to realize that all you…
Lionel replied to Lionel's discussion 'Linking Matlab with SWMM5'
Thanks Robert for your prompt help!
Lionel replied to Fateme Fallah's discussion 'Uncertainty Analysis'
Hi Fateme Fallah,
I am doing something similar but in my case I am varying the infiltration factor. I am not very good with Matlab so require a bit of help on the coding. I would like to check if you have been successful in your attempt to…
Robert Dickinson replied to Lionel's discussion 'Linking Matlab with SWMM5'
Hi, This thread has some info
http://www.swmm2000.com/forum/topics/uncertainty-analysis
as does this
http://www.swmm2000.com/forum/topics/link-swmm-with-matlab
http://www.swmm2000.com/forum/topics/combining-swmm-and-matlab
Linking Matlab with SWMM5
Hi, I am currently trying to use Matlab to create a set of random values and inputting these random values into SWMM 5 to vary the different parameters (e.g. decay constant) so I will get a range of results. Has anyone done it before? Thanks!See More
Discussion posted by Lionel
North Carolina City Chooses InfoSewer
North Carolina City Chooses InfoSewerArcGIS Based Sewer Modeling Package Helps Hendersonville, NC Model and Manage Its Collection SystemBroomfield, Colorado, USA, January 31, 2012Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced the City of Hendersonville, North Carolina, has selected InfoSewer for ArcGIS (Esri, Redlands, CA) as its sewer modeling platform.InfoSewer has helped define the standard in the industry for…See More
A blog post by Robert Dickinson was featured
North Carolina City Chooses InfoSewer
North Carolina City Chooses InfoSewerArcGIS Based Sewer Modeling Package Helps Hendersonville, NC Model and Manage Its Collection SystemBroomfield, Colorado, USA, January 31, 2012Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced the City of Hendersonville, North Carolina, has selected InfoSewer for ArcGIS (Esri, Redlands, CA) as its sewer modeling platform.InfoSewer has helped define the standard in the industry for…See More
Blog post by Robert Dickinson
Robert Dickinson left a comment for oliver kemp
Welcome Oliver!
Expanded View Variables
SWMM 5 View Variables
There are four types of graphical variables in SWMM 5: (1) Subcatchements, (2) System, (3) Nodes and (4) Links. The SWMM 5 Hydrology binary graphics file consists of 21 view variables for each subcatcment simulation in SWMM 5. The variables are:
| Subcatchment Variables | Description |
| SUBCATCH_RAINFALL | rainfall intensity |
| SUBCATCH_SNOWFALL | snowfall intensity |
| SUBCATCH_RUNOFF | total runoff flow rate |
| SUBCATCH_RUNOFF_IMPZero | runoff flow rate from zero imp area feb 2007 |
| SUBCATCH_RUNOFF_IMP | runoff flow rate from imp area feb 2007 |
| SUBCATCH_RUNOFF_Pervious | runoff flow rate from pervious area feb 2007 |
| SUBCATCH_LOSSES | total losses (infil) |
| SUBCATCH_EVAP | watershed evaporation loss |
| SUBCATCH_DEPTH | watershed depth |
| SUBCATCH_GW_FLOW | groundwater flow rate to node |
| SUBCATCH_GW_FLOW_A1 | groundwater flow rate to node |
| SUBCATCH_GW_FLOW_A2 | groundwater flow rate to node |
| SUBCATCH_GW_FLOW_A3 | groundwater flow rate to node |
| SUBCATCH_GW_ELEV | elevation of saturated gw table |
| SUBCATCH_GW_THETA | soil moisture |
| SUBCATCH_GW_PERCOLATION | aquifer deep percolation |
| SUBCATCH_SNOWMELT | watershed snow melt |
| SUBCATCH_SNOWDEPTH | watershed snow depth |
| SUBCATCH_FREEWATER | watershed snow depth |
| SUBCATCH_COLD | watershed cold content |
| SUBCATCH_SNOWAREA | watershed snow coverage |
| SUBCATCH_UL | soil thickness |
| SUBCATCH_FTOT | infiltration during an event |
| SUBCATCH_FU | current value of F |
| SUBCATCH_FUMAX | maximum value of F |
| SUBCATCH_MOISTURE | current soil mositure (less than porosity) |
| SUBCATCH_IMD | current IMD (Porisity - Moisture) |
| SUBCATCH_IMDbyEvent | IMD at the beginning of an event |
| SUBCATCH_SAT | Flag for saturation (1 is saturated) |
| SUBCATCH_INFIL_TIME | GA infiltration time |
| SUBCATCH_WLMAX | current infiltration RATE |
| SUBCATCH_NETPRECIP | rainfall intensity |
| SUBCATCH_BUILDUP | pollutant buildup concentration |
| SUBCATCH_WASHOFF | pollutant washoff concentration |
The SWMM 5 system binary graphics file consists of 25 variables on one line for each system variable simulated in SWMM 5. The variables are:
| System Variables | Description |
| SYS_TEMPERATURE | air temperature |
| SYS_WINDSPEED | wind speed |
| SYS_RAINFALL | rainfall intensity |
| SYS_SNOWFALL | snow depth |
| SYS_RUNOFF | runoff flow |
| SYS_LOSSES | evap + infil |
| SYS_EVAP | evap |
| SYS_DWFLOW | dry weather inflow |
| SYS_GWFLOW | ground water inflow |
| SYS_IIFLOW | RDII inflow |
| SYS_EXFLOW | external inflow |
| SYS_INFLOW | total lateral inflow |
| SYS_FLOODING | flooding outflow |
| SYS_OUTFLOW | outfall outflow |
| SYS_STORAGE | storage volume |
| SYS_CE | continuity error for the basin |
| SYS_ITERATIONS | average iterations over the basin |
| SYS_SNOWDEPTH | snow depth |
| SYS_COLD | cold storage for the basin |
| SYS_SNOWMELT | snowmelt for the basin |
| SYS_RAINMELT | rainmelt for the basin |
| SYS_TS | time steps during the simulation |
| SYS_DWFLoad | total K3 line DWF load |
| SYS_WWFLoad | total K3 line WWF load |
| SYS_WWFLoadExtra | agency extra WWF Load |
The SWMM 5 Node graphics binary file consists of 20 variables on one line for each junction/storage/outfall/divider simulated in SWMM 5. The variables are:
| Node Variables | Description |
| NODE_DEPTH | water depth above invert |
| NODE_HEAD | hydraulic head |
| NODE_VOLUME | volume stored & ponded |
| NODE_LATFLOW | lateral inflow rate |
| NODE_IIFLOW | total rdii inflow rate |
| NODE_UH1 | total rdii inflow rate from UH 1 |
| NODE_UH2 | total rdii inflow rate from UH 2 |
| NODE_UH3 | total rdii inflow rate from UH 3 |
| NODE_DWFFLOW | total DWF inflow rate |
| NODE_INFLOW | total inflow rate |
| NODE_OUTFLOW | total outflow rate |
| NODE_OVERFLOW | overflow rate |
| NODE_CE | node ce |
| NODE_AREA | node surface area |
| NODE_DQDH | node surcharge dqdh |
| NODE_DENOM | node surcharge dqdh |
| NODE_ITERATIONS | node iterations to this time step |
| NODE_TIMESTEP | node iterations to this time step |
| NODE_CONVERGENCE | node iterations to this time step |
| NODE_QUAL | concentration of each pollutant |
Link Variables
Last updated by Robert Dickinson Apr 21, 2008.
© 2012 Created by Robert Dickinson.
Powered by 
.
