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SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
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Robert Dickinson commented on Robert Dickinson's group Stream of Information"by jasonkillinger. Browse more data visualizations.
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Robert Dickinson added a page to the group SWMM4 Input Files
Historical SWMM 5 and SWMM 4 Engines and Examples
Subject: Historical SWMM 5 and SWMM 4 Engines and Examples
The web site has http://swmm5legacycode.ning.com/ historical SWMM 5 installs, SWMM 5 input file examples and SWMM 4 input files and engines. The SWMM 4 engines go back to SWMM 3.5…
Robert Dickinson commented on Robert Dickinson's group SWMM4 Input Files"Subject: Historical SWMM 5 and SWMM 4 Engines and Examples
The web site has http://swmm5legacycode.ning.com/ historical SWMM 5 installs, SWMM 5 input file examples and SWMM 4 input files and engines. The SWMM…"
Robert Dickinson added a page to the group Blog Links
SWMM5.NET
15 GPM
1985
1D Components in InfoSWMM 2D
3 Types of Manholes in SWMM 5 and InfoSWMM
3 Types of Subcatchment Flow in SWMM 5
A Basic InfoSewer Wet Well
A feedback loop involves four distinct stages
A rise in Pipe Inverts Across a SWMM 5 Node
A…
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Udaipur, India
May. 28, 2012
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Robert Dickinson commented on Robert Dickinson's group Weather"Man-made Pollution Shifting Tropics and Sub-Tropics Poleward
"If a poleward displacement of the mid-latitude storm tracks also occurs, this will shift mid-latitude precipitation poleward, impacting regional agriculture, economy, and…"
Robert Dickinson commented on Robert Dickinson's group Weather"Poor neighborhoods have fewer trees, as these jarring satellite photos reveal.: http://www.treehugger.com/economics/how-spot-income-inequality-space-look-trees.html"
Robert Dickinson commented on Robert Dickinson's group Weather"
Climate Change is Frying Our Cities
Rising temperatures are set triple the heat-related deaths in cities across the U.S., a new report finds. Cities need to fight back."
Robert Dickinson posted a videoRSA Animate - The Power of Networks
In this new RSA Animate, Manuel Lima, senior UX design lead at Microsoft Bing, explores the power of network visualisation to help navigate our complex moder...
Robert Dickinson commented on Robert Dickinson's group ExtraVariables"Update of May, 20012
Epaswmm5.exe
swmm5.dll"
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
In 20 years, water demand will exceed supply by 40 percent - from Smart Planet
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From Smart Planet "In 20 years, water demand will exceed supply by 40 percent"
It takes so much water to make everything we produce and own. The hidden use of water is known as virtual water. Nearly 90 percent of the consumption of the world’s fresh water supply is used for producing food and energy.
You might not realize this but it takes 1.5 tonnes of water to make a computer and six tonnes to make a pair of jeans. So it’s not surprising that the annual global virtual water trade is the equivalent of 10 Nile Rivers.
More here http://www.smartplanet.com/technology/blog/science-scope/with-popul...
Comment
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Comment by Robert Dickinson on April 20, 2011 at 5:14pm -
Today at 3:14 pm
Urbanism And Water Scarcity
When SA sent me a link to an article about a large “new urbanist” development planned for the suburbs of Albuquerque, I was instinctively skeptical. I like cities, personally, but I try not to let that cloud my judgment to much. Historical urbanism was driven by transportation technology (harbors, rail lines, but no cars) and present-day urbanism should be driven by scarcity of land but unless Albuquerque has changed dramatically since I was there three years ago they’re not exactly running out of space in New Mexico.
But this points perhaps in another direction:
Like other desert boomtowns, Albuquerque’s loosely planned sprawl is on a collision course with its finite water supply. Mesa del Sol will have an extremely efficient water system, and its dense, mixed-use design could reduce the need for more development on the city’s west side, where suburbs have consumed huge tracts of once-wild desert.
I’m not at all familiar with the details of western water management issues, but in general water rather than space is the scarce commodity in that region. If it’s the case that urbanism is a way of economizing on water, then it might have a promising future there. At the same time, we really really really really really really don’t have a free market in water in this country, especially in arid parts of the west. Consequently, water-related development decisions are rarely driven by straightforward considerations of trying to allocate a scarce resource efficiently.
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