"At the Summit of Olympus Mons
Credit: G. Neukum (FU Berlin) et al., DLR, ESA
From martian orbit, the Mars Express cameras looked down on the largest volcano in the solar system. The result was this stunningly detailed overhead view of the…"
SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
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Robert Dickinson replied to Robert Dickinson's discussion How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?"Subject: Link Iterations in the SWMM 5 Dynamic Wave Solution
Each of the links in the SWMM 5 network can use up to 8 iterations to reach convergence during a time step in the dynamic wave solution of SWMM 5. The rules…"
Robert Dickinson left a comment for wu ze jian"Hi, I added this discussion http://swmm2000.com/forum/topics/how-is-the-st-venant-equation-solved-for-in-the-dynamic-wave-solu"
Robert Dickinson posted a discussionHow is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?
Subject: How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5? An explanation of the four St. Venant Terms in SWMM 5 and how they change for Gravity Mains and Force Mains. The HGL is the water surface elevation in the upstream and downstream nodes of the link. The HGL for a full link goes from the pipe crown elevation up to the rim elevation of the node + the surcharge depth of the node. The four terms are: dq2 = Time Step * Awtd * (Head Downstream – Head Upstream)…See More
Robert Dickinson added a page to the group Hydraulics
Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
Subject: Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
You can model Force Main friction loss in InfoSWMM using either Darcy Weisbach or Hazen Williams as the full pipe friction loss method (see Figure 1 for the…
Robert Dickinson's blog post was featuredSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson posted a blog postSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Pacheena Indian Reserve, British Columbia, Canada
May. 25, 2012
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Robert Dickinson commented on Robert Dickinson's group Stream of Information"All the Water on Europa Illustration Credit & Copyright: Kevin Hand (JPL/Caltech), Jack Cook (Woods Hole Oceanographic Institution), Howard Perlman (USGS)
Explanation: How much of Jupiter's moon…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"URBAN STORMWATER QUANTITY/QUALITY MODELING USING THE SCS METHOD AND EMPIRICAL EQUATIONS†
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.1997.tb04093.x/abstract
May 24, 2012
Wiley Online Library will be disrupted on 26 May from…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"Hi MeHa, Here is one good source of data, I also have the SWMM 5 models for the USGS areas.
http://www.1000friendsofflorida.org/pubs/stmarksgreen/apend4.asp
http://sofia.usgs.gov/publications/ofr/78-324/ofr-78-324.pdf
"
MeHa commented on Robert Dickinson's group Water Quality"I want to model WQ of sewers. Can any body provide me a network with real measured calibration files? "
MeHa posted a status"Hello, When designing a sewer system, we consider the Node Flooding and Conduit surcharge in the status report. Is there any guideline which"
Quah Soon Tong left a comment for Esther Bergareche Auricenea"Hi Esther, I am not sure you are the same Esther that was at the United World College in South Wales with me. I am Quah Soon Tong from Singapore. I noticed you are also an engineer. I did Civil Engineering at Cambridge University, but practised as…"
Robert Dickinson commented on Robert Dickinson's group Stream of Information"River Canyon
May. 23, 2012
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Robert Dickinson commented on Robert Dickinson's group Stream of Information"Litla Dimun, Faroe Islands
May. 23, 2012
"
Kashif Ali's Discussions
10,000+ subcatchments to be assigned with outlets
Started this discussion. Last reply by Kashif Ali Feb 24. 8 Replies 1 Like
Hi experts,I am to assign outlet to some 10,000 sub catchments, manually doing it doesn't seem professional.Luckily, name of subcatchment is same name of junction (outlet)i.e.Subcatcment …Continue
Tags: number, large, nodes, subcatchment, outlet
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Kashif Ali replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"Thanks Robert it works,
A bit time consuming but still ok
regards
"
Robert Dickinson replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"You also use a text editor - strip out the Subcatchment Section and then use use Excel just on the Subcatchment Section - of course you will then have to use a text editor to paste the altered Subcatchment section back into you SWMM 5 input…"
Kashif Ali replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"Hello Robert,
Here is the .inp file for your review, if you can see how large data can be handled by excel add-on
http://www.mediafire.com/?a5u64plrksd3tec
"
Kashif Ali replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"Thanks Rui for your time and efforts to go through this project,
By using GIS functions and adding fields in attribute files, the sub catchments are now linked with their appropriate outlets.
Also, rather than, loading all hydrologic and…"
Kashif Ali replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"Thanks Robert,
It really what I needed - without reading the manual, I was trying each option in the swmm to see if there is way to export the data in excel format.
However, data being too large, excel simply says sorry with this message (This…"
Rui Daniel Pina replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"Please try inp.PINS and select inpTools --> Subcatchments connection
(https://sites.google.com/site/inppins/)
You can also edit inp text file, or even use GIS functions."
Robert Dickinson replied to Kashif Ali's discussion 10,000+ subcatchments to be assigned with outlets
"You can save the SWMM 5 input file to Excel using this tool and then use Excel to populate the OUTLET column
http://www.swmm2000.com/xn/detail/2039064:Note:1021"
Kashif Ali posted a discussion
10,000+ subcatchments to be assigned with outlets
Hi experts,I am to assign outlet to some 10,000 sub catchments, manually doing it doesn't seem professional.Luckily, name of subcatchment is same name of junction (outlet)i.e.Subcatcment Junction177119 177119177123 177123177126 177126263803 263803263806 263806These are not in particular sequence but name of subcatchment is always same as of junction.Any clueThanks in advanceSee More
Kashif Ali commented on MeHa's blog post ArcGIS data into SWMM
"Thanks Rui,
I just solved the problem by accident - installed 32 and 64 bit versions of Mapwindow + the active X and then the inp.PINS.
Now, the nodes file is successfully transed, however, there are problems with links (conduits) file
again, it has…"
Kashif Ali left a comment for Rui Daniel Pina
"Here are the files for nodes and links both
Pipes.inp"
Kashif Ali commented on MeHa's blog post ArcGIS data into SWMM
"Further to describe the problem,
after assigning the shp file, as soon I hit the Maki INP button it stops working and
Can you plz advise where I go wrong.
Thanks "
Kashif Ali commented on MeHa's blog post ArcGIS data into SWMM
"Hi Rui,
It seems to be a good application, but due to the large data I have got, inp.PINS stopped working (seemingly)
Any solution to this?
http://www.mapwindow.org/apps/wiki/doku.php?id=inp.pins
instead…"
Kashif Ali commented on MeHa's blog post ArcGIS data into SWMM
"Hi there,
Nice and useful conversation
Was planing to translate a shapfile with 10,000 nodes into swmm
"
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- 2111
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