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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
2 hours ago
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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…
3 hours ago
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4 blog posts by Robert Dickinson were featured 10 hours ago
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Blog posts by Robert Dickinson 10 hours ago
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Photo posted by Robert Dickinson 13 hours ago
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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 18 hours ago
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2 blog posts by Robert Dickinson were featured yesterday
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Blog posts by Robert Dickinson yesterday
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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…
Saturday
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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…
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glenn gradin, Bryant McDonnell and Lionel joined SWMM5 - Stormwater Management Model Thursday
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Lionel replied to Lionel's discussion 'Linking Matlab with SWMM5'
Thanks Robert for your prompt help!
Thursday
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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…
Thursday
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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 Thursday
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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 Tuesday
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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 Tuesday
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Robert Dickinson left a comment for oliver kemp
Welcome Oliver!
Tuesday
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oliver kemp is now a member of SWMM5 - Stormwater Management Model Jan 31
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Design Storms

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All Blog Posts (533)

Robert Dickinson The Importance of Viewing Results at the Proper Time Scale

Subject:   The Importance of Viewing Results at the Proper Time Scale

 

In SWMM 5 when you are simulating rapidly changing flow – such as pump flows – it is important to  remember that you are only seeing the results of the simulation at your selected report time step.  Here is an example model with the same number of pump starts for all three simulations (318), the same  average time step during the simulation (10 seconds) but different…

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Added by Robert Dickinson on February 5, 2012 at 11:39pm — No Comments

Robert Dickinson An Example of the Importance of the Term DQ4 in the SWMM 5 St Venant Solution

Subject:   An Example of the Importance of the Term DQ4 in the SWMM 5 St Venant Solution

The four terms are are used in the new flow for a time step of Qnew:

Qnew = (Qold – dq2 + dq3 + dq4) / ( 1 + dq1)

when the force main or gravity main is full dq3 and dq4 are zero and  Qnew = (Qold – dq2) / ( 1 + dq1)

The dq4 term…

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Added by Robert Dickinson on February 5, 2012 at 10:14pm — No Comments

Robert Dickinson Use the SWMM 5 Scatter Graph to show the Pump Curve used during the Simulation

Subject:  Use the SWMM 5 Scatter Graph to show the Pump Curve used during the Simulation

 

You can use a scatter graph to show the relationship between the pump during the simulation and the Storage Depth.   If the pump is on the curve based on the pump summary table then the scatter graph should  look like the pump curve.  The pump summary…

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Added by Robert Dickinson on February 5, 2012 at 8:45pm — No Comments

Robert Dickinson Thanks to Plants, We Will Never Find a Planet Like Earth

Thanks to Plants, We Will Never Find a Planet Like Earth



Earth's flora is responsible for the glaciers and rivers that have created this planet's distinctive landscape

Perhaps even more surprisingly, vascular plants formed the kinds of rivers we see around us today, according to …

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Added by Robert Dickinson on February 5, 2012 at 5:38pm — No Comments

Robert Dickinson How to Import the SWMM 5 Report File as a Layer in InfoSWMM

Subject:  How to Import the SWMM 5 Report File as a Layer in InfoSWMM

 

The idea of this blog of note is to show how one may extract information from the SWMM 5 or InfoSWMM RPT file and import the Excel  File as a feature in InfoSWMM.  This blog has an example Excel file to illustrate the linkage. The steps…

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Added by Robert Dickinson on February 4, 2012 at 8:59pm — No Comments

Robert Dickinson How to Approximate a Timer in the RTC Rules of SWMM 5

Subject:   How to Approximate a Timer in the RTC Rules of SWMM 5

 

SWMM 5 does not have a explicit timer in its Real Time Control (RTC) rules but you can approximate it by using a Control Curve as in the attached example model.  The Control Curve will modify the setting of the Weir by the Inflow to the Storage node.  You can…

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Added by Robert Dickinson on February 4, 2012 at 11:36am — No Comments

Robert Dickinson North Carolina City Chooses InfoSewer

North Carolina City Chooses InfoSewer

ArcGIS Based Sewer Modeling Package Helps Hendersonville, NC Model and Manage Its Collection System

Broomfield, Colorado, USA, January 31, 2012

Innovyze, 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…

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Added by Robert Dickinson on January 31, 2012 at 1:18pm — No Comments

Robert Dickinson Three Flow Divider Link Example in SWMM 5

Subject:  Three Flow Divider Link Example in SWMM 5

 

You can have more than 2 downstream OUTLET Type links in the SWMM 5 dynamic wave solution.  Each link, Under5, Over5 and ReturnFlow is an OUTLET Link with a rating curve depth/flow table.  Depending on the depth in the storage node DIVIDER, the flow is…

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Added by Robert Dickinson on January 28, 2012 at 7:01pm — No Comments

Robert Dickinson Example SWMM 5 Model for Activated Sludge

Note:   Example SWMM 5 Model for Activated Sludge

 

Here is one example of how to model an activated sludge tank.  The image is Wikipedia (http://en.wikipedia.org/wiki/Activated_sludge)  and is the watermark background in the SWMM 5 GUI.  There is…

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Added by Robert Dickinson on January 28, 2012 at 6:24pm — No Comments

Robert Dickinson Output Statstics Manager to find negative flows in InfoSWMM

Subject:  Output Statstics Manager to find negative flows in InfoSWMM

 

Output Statstics Manager to find negative flows with these parameters:

 

1.       Pipe Features

2.       Use a Domain with your force…

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Added by Robert Dickinson on January 28, 2012 at 8:34am — No Comments

Robert Dickinson Flow Dividers in SWMM 5 Dynamic Routing

Note:  Flow Dividers in SWMM 5 Dynamic Routing

You can  have flow dividers in SWMM 5 dynamic routing by using Storage Nodes for the dividers, OUTLET links for the downstream links and minimizing downstream HGL effects. The needed components are:

1.   A Storage Node for the divider node as a OUTLET Link does not have a Surface…

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Added by Robert Dickinson on January 28, 2012 at 8:30am — No Comments

Robert Dickinson Major Bulgarian Utility Chooses InfoNet For Effective Network Management

Major Bulgarian Utility Chooses InfoNet For Effective Network Management 

ViK Lovetch Utility Looks to Innovyze Solution to Manage Its Extensive, Complex Water Network

 …
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Added by Robert Dickinson on January 24, 2012 at 7:18pm — No Comments

Robert Dickinson The Keep and Dampen options and their effect on the four main terms of the St Venant equation

Note:  The Keep and Dampen options and their effect on the four main terms of the St Venant equation. 

 

The four terms are are used in the new flow for a time step of Qnew:

 …

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Added by Robert Dickinson on January 24, 2012 at 8:15am — No Comments

Robert Dickinson The Keep and Dampen options and their effect on the four main terms of the St Venant equation

Note:  The Keep and Dampen options and their effect on the four main terms of the St Venant equation. 

 

The four terms are are used in the new flow for a time step of Qnew:

 …

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Added by Robert Dickinson on January 24, 2012 at 8:15am — No Comments

Robert Dickinson Rooftop gardens could solve Singapore’s flooding problem

Rooftop gardens could solve Singapore’s flooding problem

By Tyler Falk | January 18, 2012, 9:09 AM PST

From SmartPlanet…

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Added by Robert Dickinson on January 19, 2012 at 7:36pm — No Comments

Robert Dickinson Surcharged Node and the Link Connection in SWMM 5

Subject:   Surcharged Node and the Link Connection in SWMM 5

A surcharged node in SWMM 5 uses this point iteration equation (Figure 1):

dY/dt = dQ / The sum of the Connecting Link values of  dQ/dH

where Y is the depth in the node, dt is the time step, H is the head across the link (downstream – upstream), dQ is the net inflow into the node and dQ/dH is…

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Added by Robert Dickinson on January 16, 2012 at 11:56am — No Comments

Robert Dickinson How to Make Icons and Expand the Toolbars in InfoSWMM and InfoSewer

Subject:  How to Make Icons and Expand the Toolbars in InfoSWMM and InfoSewer

 

You can customize the toolbars in InfoSWMM and InfoSewer by clicking on Customize and performing 4 steps: 

Step 1.  Click on Customize

Step 2.  Move the tool from the Command list to the…

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Added by Robert Dickinson on January 15, 2012 at 5:38pm — No Comments

Robert Dickinson How do I correct a fatal error resulting in automatic shutdown in ArcMap?

Subject:   How do I correct a fatal error resulting in automatic shutdown in ArcMap?

If you cannot open ArcMap, InfoSewer or InfoSWMM at all and get a fatal Esri error the problem may be the file normal.mxt

“If the startup file in ArcGIS Desktop or component applications (e.g., ArcMap, ArcGlobe, ArcScene) is corrupt, a fatal error can…

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Added by Robert Dickinson on January 15, 2012 at 10:35am — No Comments

Robert Dickinson SWMM 5 Engine Updates between v13 and v22 by Category

Subject:  SWMM 5 Engine Updates between v13 and v22 by Category

The complete list of engine and GUI changes can be found in this text file on the EPA Site http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/epaswmm5_updates.txt

This note  categorizes the engine changes by aggregating dynamic wave solution changes, surface…

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Added by Robert Dickinson on January 13, 2012 at 8:22am — No Comments

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