Thursday, November 1, 2012

High and Low Estimates of InfoSWMM/ICM Subcatchment Dimension for SWMM Hydrology

High and Low Estimates of InfoSWMM/ICM Subcatchment Dimension for SWMM Hydrology

These are the estimates for both SWMM 5, InfoSWMM and ICM SWMM Hydrology, the low estimate is 0.2*SQRT(Area in Feet) and the High Estimate is 5*SQRT(Area in Feet), Figure 1.  You can use higher or lower numbers to calibrate to monitored data but these are just guidelines using the InfoSWMM Subcatchment Manager Width Tool (Figure 2).

Table 1.  High and Low Estimates of the ICM Subcatchment Dimension for SWMM Hydrology or the SWMM 5 Subcatchment Width.


Subcatchment Area
 (Acres)
Low Estimate  Width (Feet),
W = 0.2*SQRT(Area)
High Estimate  Width (Feet),
W =5*SQRT(Area)
1
41.74
1,043.55
5
93.34
2,333.45
10
132
3,300.00
25
208.71
5,217.76
50
295.16
7,379.02
100
417.42
10,435.52
200
590.32
14,758.05
300
722.99
18,074.84
400
834.84
20,871.03
500
933.38
23,334.52
600
1022.47
25,561.69
700
1104.39
27,609.78
800
1180.64
29,516.10
900
1252.26
31,306.55
1,000
1320
33,000.00
5,000
2951.61
73,790.24
10,000
4174.21
104,355.16
50,000
9333.81
233,345.24
100,000
13200
330,000.00

Figure 1  InfoSWMM Subcatchment Manager Width Estimator.

Everyone Should Write

Everyone Should Write

Says James Somers:
You should write because when you know that you’re going to write, it changes the way you live. I’m thinking about a book I read called Field Notes on Science & Nature, a collection of essays by scientists about their notes. It’s hard to imagine a more tedious concept — a book of essays about notes? — but in execution it was wonderful. What it teaches you, over and over again, is that the difference between you and a zoologist or you and a botanist is that the botanist, when she looks at a flower, has a question in mind. She’s trying to generate questions. For her the flower is the locus of many mental threads, some nascent, some spanning her career. Her field notebook is not some convenient way to store lifeless data to be presented in lifeless papers so that other scientists can replicate some dull experiment; it’s the site of a collision between a mind and a world.
More interesting insight:
When I have a piece of writing in mind, what I have, in fact, is a mental bucket: an attractor for and generator of thought. It’s like a thematic gravity well, a magnet for what would otherwise be a mess of iron filings. I’ll read books differently and listen differently in conversations. In particular I’ll remember everything better; everything will mean more to me. That’s because everything I perceive will unconsciously engage on its way in with the substance of my preoccupation. A preoccupation, in that sense, is a hell of a useful thing for a mind.

Weekend DWF Patterns in H2OMAP SWMM and InfoSWMM

Dry Weather Flow in InfoSWMM and H2OMap SWMM

Dry Weather Flow in InfoSWMM and H2OMap SWMM

by dickinsonre
Dry Weather Flow in InfoSWMM and H2OMap SWMM
 Dry weather flow can be added to any node in H2OMAP SWMM.  The dry weather flow is computed as the average flow * the monthly pattern * the daily pattern * hourly pattern * the weekend daily pattern to give the Dry Weather Flow at any time step (Figure 1).   Since the four types of patterns (Figure 2) are all multiplied together then for Saturday and Sunday the hourly pattern and the weekend hourly pattern will both be used.   This will have the effect of overestimating the flow if the multipliers are greater than 1 and underestimating theflow if the multipliers are less than one.  You should enter the  Pattern X for the Weekend Hourly Pattern in H2OMAP SWMM  where 
X  = Weekend Hourly Pattern / Hourly Pattern 
So that when the pattern X is multiplied by the Hourly Pattern the program will use the intended Weekend Pattern.

Figure 1.  How Dry Weather Flow is Computed in H2OMAP SWMM


Figure 2.  The Four Types of Time Patterns in H2OMAP SWMM, InfoSWMM and SWMM 5 




Tuesday, October 30, 2012

Format of the SWMM 5 Interface File

Note:  Format of the SWMM 5 Interface File

Here is an example and Figure 1 shows the format (from Iface.c in SWMM 5)

SWMM5 Interface File
This is from the 1st line of the SWMM 5 Model in the Title/Notes Section of the Data
900  - reporting time step in sec
1    - number of constituents as listed below:
FLOW CFS
1    - number of nodes as listed below:
10208
Node             Year Mon Day Hr  Min Sec FLOW
10208            2011 02  22  00  00  00  0.000000
10208            2011 02  22  00  15  00  0.000000
10208            2011 02  22  00  30  00  0.000000
10208            2011 02  22  00  45  00  0.000000
10208            2011 02  22  01  00  00  0.000000  

Figure 1.   Graph of the lines in the SWMM 5 Interface File



Sunday, October 28, 2012

Arc Map If Statements for Showing Flooding in InfoSWMM

Arc Map If Statements for Showing Flooding in InfoSWMM

Arc Map If Statements for Showing Flooding in InfoSWMM

by dickinsonre
Arc Map If Statements for Showing Flooding in InfoSWMM

You can use a combination of the Map Display in InfoSWMM and the Arc Map Label Properties to show the Maximum Ponded Volume at a node during amInfoSWMM simulation. 

The label function in VBSCRIPT to show just non zero flooded volumes(Figure 1) is:

Function FindLabel ( [PONDED_VOL] )
If [PONDED_VOL] > 0 THEN
  FindLabel = "" & FormatNumber([PONDED_VOL],2) & ""
END IF
End Function

and the values of Flooded Time,  Maximum Flooded Rate and Maximum Ponded Volume can be found in the Junction Attribute Table(Figure 2)  but not the Junction Summary Table of the InfoSWMM output report manager tables. 

A VBSCRIPT function to show both ponded volume and flooded rate (Figure 3) is:

Function FindLabel ( [PONDED_VOL], [FLOOD_RATE]  )
If [PONDED_VOL] > 0 THEN
  FindLabel = "" & FormatNumber([PONDED_VOL],2) & " / "   & FormatNumber([FLOOD_RATE],1)
END IF
End Function



Figure 1.  InfoSWMM Map Display of Ponded Volume which is the integral of node flooding over the flooded time.

Figure 2.   If you use the Map Display feature in InfoSWMM then the total flooded time, flood rate and maximum ponded volume will be shown in the Junction Attribute Table.


Figure 3.  Labels showing both Maximum Flooded Volume and Maximum Flooded Time on the InfoSWMM Map Display








Saturday, October 27, 2012

1000 Year Simulation with Rainfall in SWMM5

Subject:   1000 Year Simulation with Rainfall in SWMM5

1000 Year Simulation with Rainfall in SWMM5

by dickinsonre
Subject:   1000 Year Simulation with Rainfall 
The attached one Subcatchment SWMM 5 model and associated Rainfall was created using the Random function in Excel on a measured NCD station in Boston.    There is a dry weather flow component of 0.5 cfs with an hourly pattern.  The rainfall averages 54 inches over the 1000 years and the runoff is 20 inches on average over the 1000 years
Figure 1. Combined Flow at the Outfall for the 1000 year Simulation.

Connecting to Others Using Twitter, LinkedIn and Blogs for SWMM5, InfoSWMM and InfoSewer

Connecting to Others Using Twitter, LinkedIn and Blogs for SWMM5, InfoSWMM and InfoSewer

by dickinsonre
Twitter besides being 140 characters of greatness has many third party tools such as Tweet Topic Exploreer which allows you to see visually your Tweets by subject, http://tweettopicexplorer.neoformix.com/#n=rdickinson I found it handy to see the interrelationships of my tweets to each other  and to the industry (Figure 2 and Figure 3).  Here are the Twitter names of myself and Innovyze along with the Innovyze LinkedIn Group:

We want to hear from you – connect with Innovyze!
Twitter: @Innovyze
LinkedIn: Innovyze Group
Twitter: @rdickinson

I try to have easy links between Twitter, LinkedIn,  Blogs and Wikipedia on my Ning Social Network, which you can join and post questions and hopefully gather some information (Figure 1)


Figure 1.  It is important to have a connection between Social Networks, Blogs, Twitter and LinkedIn.


Figure 2.  Tweet topics for RDICKINSON on Twitter.

Figure 3.  Tweet Topics for INNOVYZE on Twitter.






Wednesday, October 24, 2012

Advanced SWMM 5 import into InfoSWMM and H2OMAP SWMM

Subject:  Advanced SWMM 5 import into InfoSWMM and H2OMAP SWMM

Advanced SWMM 5 import into InfoSWMM andH2OMAP SWMM

by dickinsonre
Subject:  Advanced SWMM 5 import into InfoSWMM and H2OMAP SWMM
The current version of InfoSWMM and H2OMAP SWMM not only imports the latest SWMM 5 version but it has built in flexibility that allows the user to import selected data sections, model data sections or auxiliary file information such as calibration data files.  This allows you the choice of importing non specific network data that can used in the model of any city, county, shire, town or watershed.  For example,  you can import only these sections without affecting the geometry of your network:
1.      Calibration File Information,
2.      RTC Rules
3.      Aquifers
4.      Snowpacks
5.      Buildup for Water Quality,
6.      Washoff for Water Quality,
7.      Evaporation,
8.      Time Series,
9.       DWF,
10.        Patterns,
11.        RDII
12.        Loadings,
13.        Curves,
14.        LID Controls,
15.        LID Usage,
16.        Pollutants,
17.        Land Uses
Possible uses of this feature would be to have a city wide or company wide library of LID controls, RTC Rules or RDII values.
Figure 1.  Import Dialog with Import Options
Figure 2.  Only names and directories of the Calibration Files was imported

  



                                                                                                                                                                

InfoSewer to InfoSWMM Import Tips

Subject:   InfoSewer to InfoSWMM Import Tips

InfoSewer to InfoSWMM Import Tips

by dickinsonre
Subject:   InfoSewer to InfoSWMM Import Tips
The direct import of InfoSewer to InfoSWMM (Figure 1) is both direct and robust but you need to be aware of Run Manager changes to optimize the InfoSWMMmodel:
1.       Make sure that the Flow Units in InfoSWMM Run Manager match the default flow units in InfoSewer so that the DWF values are comparable,
2.      Make sure that the Output Flow Units in InfoSWMM match the Output Flow Units in InfoSewer so direct comparisons are easier,
3.      Add a Pump On and Pump Off depth to the Pumps in  InfoSWMM so that the pumps work better in a fully dynamic solution,
4.      The Fixed Pump Curves of InfoSewer should be checked in the Pump Curve section of InfoSWMM to make sure they are comparable,
5.      The InfoSWMM conduit step lengthening option should be used to speed up the model if you have short links in InfoSewer,
6.      You can check the overall balance in the two modeling platforms by comparing the System Load Graph in InfoSewer to the Total Inflow Graph inInfoSWMM.
Figure 1   Dialog for Importing InfoSewer to InfoSWMM



How to Use the SWMM 5 Excel Tool with InfoSewer CSV Files

How to Use the SWMM 5 Excel Tool with InfoSewer CSV Files

How to Use the SWMM 5 Excel Tool with InfoSewer CSV Files

by dickinsonre
How to Use the SWMM 5 Excel Tool with InfoSewer CSV Files

1. Export Link and Manholes in InfoSewer for your current Scenario to CSV files,
2. Set up the Excel Add on for SWMM 5 by using the command Tools, and Configure Tools (see below)
3. Run SWMM 5 and edit the data in Excel, you should be able to copy and paste the information from the CSV files into the correct SWMM 5 sections.
  




Tuesday, October 23, 2012

How to Use the Variable Flow Percentage Flow Splitter in InfoSewer

Subject:   How to Use the Variable Flow Percentage Flow Splitter in InfoSewer

How to use the Flow Splitter in InfoSewer for Dendritic Networks

by dickinsonre
Subject:  How to use the Flow Splitter in InfoSewer for Dendritic Networks

InfoSewer, which is an extension in Arc Map, does need to have slit split defined where gravity mains merge together to determine the amount of flow in each of the downstream conduits (Figure 1).   The options for the flow splitterin each of the downstream links are:
1.       Automatic Allocation
2.       Fixed Flow Percentage
3.       Variable Flow Percentage and
4.       Inflow-Outflow Curve 
At an outfall where the invert of the outfall pipe is raised compared to the inverts of the incoming and outgoing pipes a flow split of Variable Flow Percentage or Inflow/Outflow curve may work better (Figure 2). 

Figure 1. Options for Performing a Flow Split in InfoSewer


Figure 2.  The Effect of the flow split can be used to model complex situations in a dendritic model with outfalls.





Innovyze President Dr. Paul F. Boulos Named President-Elect of the American Academy of Water Resources Engineers


Innovyze President Dr. Paul F. Boulos Named President-Elect of the
American Academy of Water Resources Engineers
Broomfield, Colorado USA, October 23, 2012 — Innovyze, a leading global innovator of wet infrastructure modeling and simulation software and technologies, today announced that its president and chief operating officer, Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, F.ASCE, has been re-elected to the Board of Trustees and named president-elect of the American Academy of Water Resources Engineers (AAWRE) of the American Society of Civil Engineers (ASCE). Dr. Boulos was first elected to the AAWRE Board of Trustees in 2009.
His naming as AAWRE president-elect is the first in a three-year sequence of positions: in October 2013 and 2014, Dr. Boulos will serve as president and past president, respectively. In these roles, Dr. Boulos will seek to strategically position AAWRE for national and global prominence as the leading expert certification organization for water resources engineering professionals.
“Dr. Boulos’ extensive professional experience and exceptional leadership skills make him an outstanding asset for AAWRE,” said the organization’s past President, founding board member and trustee William H. Espey, Jr., Ph.D., P.E., D.WRE, President of RPS Espey in Austin, TX. “He is an individual of extraordinary merit, and his contributions to our profession are innumerable. There is no doubt that he will bring innovative ideas to energize our water resources engineering certification program and further strengthen our profession around the world.”
Dr. Boulos is one of the world’s foremost experts on water resources and navigation engineering, authoring nine authoritative books and more than 200 technical articles on issues critical to the water and wastewater industry. He is the recipient of numerous honors from national and international scientific and engineering societies, governments, universities, and NGOs. Among these acknowledgements are notable technical awards for excellence in scholarship from the American Society of Civil Engineers, the American Water Works Association and the U.S. Environmental Protection Agency. He also received the U.S. Ellis Island Medal of Honor, one of America’s highest accolades; the Pride of Heritage Award from the Lebanese American Foundation; the Alumni of the Year Award by the Lebanese American University; and was inducted into the University of Kentucky College of Engineering Hall of Distinction, the highest honor the university bestows on its alumni. He was given Honorary Diplomate status by AAWRE as well as Distinguished Diplomate status in Navigation Engineering by the Academy of Coastal, Ocean, Port & Navigation Engineers, both academies’ top honors. He is a Fellow of the American Society of Civil Engineers and a Diplomate (by Eminence) of the American Academy of Environmental Engineers.
Dr. Boulos serves on the Board of Trustees of the Lebanese American University (New York, NY and Beirut, Lebanon); the Boards of Directors of Innovyze, MWH Global (Broomfield, CO) and America-Mideast Educational and Training Services, Inc./AMIDEAST (Washington, D.C.); and the Dean’s International Council of the Harris School of Public Policy Studies at the University of Chicago (Chicago, IL). He has been a member of advisory boards and councils for many organizations, including the Buck Advisory Council of the Buck Institute for Research on Aging (Novato, CA), the Arab American National Museum (Dearborn, MI), the USEPA Science Advisory Board, the Urban Water Resources Research Council of the Environmental and Water Resources Institute (EWRI), and the National Academy of Sciences/National Research Council.
Dr. Boulos received his Doctorate, Master of Science and Bachelor of Science degrees in Civil Engineering from the University of Kentucky as well as a Bachelor degree in General Science from the Lebanese American University. He has also completed Harvard Business School’s Advanced Management Program.
The American Academy of Water Resources Engineers was created by the American Society of Civil Engineers and its Environmental and Water Resources Institute to improve the practice, elevate the standards, and advance the profession of water resources engineering. Key AAWRE goals are to identify and certify engineers with specialized knowledge in water resources for the benefit of the public; recognize the ethical practice of water resources engineering at the expert level; enhance the practice of water resources engineering; support and promote positions on water resources issues important to the public health, safety and welfare; and encourage life-long learning and continued professional development. 
“Dr. Boulos is one of the world’s foremost leaders in water resources engineering and a leading engineering executive, and we are pleased and honored that he will continue to make invaluable contributions to AAWRE,” said AAWRE incoming President Robert G. Traver, Ph.D., P.E., D.WRE, Director of the Villanova Center for the Advancement of Sustainability in Engineering and Professor, Department of Civil and Environmental Engineering at Villanova University (Villanova, PA). “His wealth of experience, vibrant leadership, and great passion for our profession will greatly advance the mission and role of AAWRE by promoting the growth of the academy and giving professional engineers an opportunity to gain recognition by the water resources industry.”
“AAWRE owes its success not to chance, but to the dedication of its Board members and staff,” said Boulos. “They have donated their time, talent and resources with a passionate commitment to our water resources profession and our members. Serving and representing this organization is not a duty, but an honor. I look forward to continuing to work with the Board to promote the importance of certification … initiate and support innovations that improve the practice, elevate the standards, advance the cause and the future of the water resources engineering profession … and effectively serve the water resources community.”
For more information on AAWRE, visit www.aawre.org.

AI Rivers of Wisdom about ICM SWMM

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