"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
"
Amélie Thériault's Discussions
Question : Quality surface buildup - report
Started this discussion. Last reply by Robert Dickinson Jan 9. 4 Replies 0 Likes
Hi!I want to clarify something. I am running a long term simulation to know the charge of fecal coliform in the summer.This is the report: ************************** CF Runoff Quality…Continue
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Robert Dickinson replied to Amélie Thériault's discussion Question : Quality surface buildup - report
"Sorry, for my poor interpretation of your question but yes you answer is right - the exp will give you the total number of fecal coli forms."
Amélie Thériault replied to Amélie Thériault's discussion Question : Quality surface buildup - report
"Hi Mrs Dickinson,
Thanks for the reply.
For the question above : There is no remaining buildup because I use the EMC with 100% efficiency.
On more time, just to be sure (english is not my fisrt language) : I can measure the total load of fecal…"
Robert Dickinson replied to Amélie Thériault's discussion Question : Quality surface buildup - report
" Initial Buildup .......... 0.000 this is the initial user defined buildup Surface Buildup .......... 14.254 …"
Robert Dickinson replied to Amélie Thériault's discussion Question : Quality surface buildup - report
"The names in SWMM 4 were more meaningful but in SWMM 5 the Surface Runoff corresponds to the Washoff. You had a buildup of 14 logN and a Washoff of the same. The Washoff or Surface Runoff in the Water Quality table already is…"
Amélie Thériault posted a discussion
Question : Quality surface buildup - report
Hi!I want to clarify something. I am running a long term simulation to know the charge of fecal coliform in the summer.This is the report: ************************** CF Runoff Quality Continuity LogN ************************** ---------- Initial Buildup .......... 0.000 Surface Buildup .......... 14.254 Wet Deposition ........... 0.000 Sweeping Removal ......... 0.000 Infiltration Loss ........ 0.000 BMP Removal…See More
Amélie Thériault posted a status
"Hi, I'm doing my master degree in Québec. I'm here to answer questions about swmm.I'm working on water qulity, mostly on coliforms."
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- At 2:39pm on July 8, 2011,
Robert Dickinson said… - Welcome Amelie!
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