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Showing posts from December, 2013

### The total losses include both evaporation and infiltration for a 100 Year SWMM 5 Simulation

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   In this example, the components of the total losses in SWMM 5 which are the infiltration from the pervious area and the evaporation from the impervious and pervious area are shown (Figure 1)
Discussion:The total losses (Figure 1) are: 1.The infiltration only losses from the pervious area,
2.Evaporation losses from the pervious and impervious area weighted by areal coverage
3.The total losses which are the sum of the evaporation plus infiltration losses
a.In a con…

### Green Ampt Infiltration for the Storage Nodes of SWMM 5

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   Continuing with the recent blogs on Green Ampt Infiltration, you can also simulate the infiltration and evaporation from a Storage node in SWMM 5
Discussion:The infiltration and evaporation can be simulated in SWMM 5 using Green Ampt Infiltration: 1.The three Green Ampt parameters are entered in the Storage Node Dialog
2.The statistics for the whole run are shown in the Storage Node Summary Table for Volume, Percent Full and Percent Loss
3.The Node Storage Graph…

### The Internal Green Ampt Parameters, Soil Moisture and IMD for a 100 Year SWMM 5 Simulation for Green Ampt Infiltration

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   In this example, we show some of the internal working of the Green Ampt Infiltration Parameters over the 100 year period.
Discussion:  Key internal parameters for Green Ampt infiltration are
FUMax is the Saturated Moisture Content of the Upper Zone (internal units of feet) F or FTOT in the graph is the Cumulative event infiltration at start of time interval (internal units of feet) FU is the current moisture content of upper zone (internal units of feet)
As sh…

### The Internal Green Ampt Parameters, FUMax, FU and FTOT or F for a 100 Year SWMM 5 Simulation for Green Ampt Infiltration

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   In this example, we show some of the internal working of the Green Ampt Infiltration Parameters over the 100 year period.
Discussion:Key internal parameters for Green Ampt infiltration are
FUMax is the Saturated Moisture Content of the Upper Zone (internal units of feet) F or FTOT in the graph is the Cumulative event infiltration at start of time interval (internal units of feet) FU is the current moisture content of upper zone (internal units of feet)
As shown in Figu…

### Initial Moisture Deficit or IMD for a 100 Year SWMM 5 Simulation for Green Ampt Infiltration

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   In this example, we show some of the internal working of the Green Ampt Infiltration Parameters over the 100 year period.  The IMD is normally near the initial user defined value but it can go to zero during the course of the simulation (Figure 1)
Discussion:  A key internal and user defined parameter is the Green Ampt Infiltration parameter Initial Moisture Deficit.  It starts out at the user Initial Deficit and then is computed at each hydrology time step…

### Water-main breaks just come with the territory - PWD

The site of Monday's huge water main break at Frankford and Torresdale Avenues is quiet December 27, 2013. Workers are to begin putting in shoring and excavating down 20 feet to the site of the break. They hadn't started as of 3pm Friday. ( TOM GRALISH / Staff Photographer )
wd

### Rainfall and Losses One Watershed for a 100 Year Simulation with SWMM 5 Statistics at a saved time step of one hour.

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.   In this example, we show how the statistics change when you change the reporting time step.  You can only see what you report, if you only save every hour or 15 minutes then you may miss some important model results.
Discussion:  In this blog we look at the Rainfall and Pervious Losses for the 100 year period: Generally, it is better to have finer time steps for rainfall and for reporting.    As you can see in Figure 1 we only get pervious runoff when the ra…

### Rules for Force Mains in InfoSewer and H2OMap Sewer

The image at the bottom shows the rules for Force Mainsin InfoSewer and H2OMap Sewer: 1.Gravity Main
2.Wet Well
3.Pump
4.Chamber Manhole
5.Force Main  if you have many force mains the node BETWEEN two force mains has to be a Chamber Manhole
a.The error messages for this are now rigorously enforced and they may not  have been in past versions 6.Loading Manhole
7.Gravity Main

### How to Make a Selection Set from the ICM Compare Command

How to Make a Selection Set from the ICM Compare Command
The Steps are: 1.Use the Compare Tool to compare two Networks
2.Save the Compared Items to a CSV File
3.Copy the Node and Links that are different in Excel from the CSV File
4.Make a Selection Set
5.Copy the Node and Link ID Names to the Selection Set

### New Mapping Feature in InfoSewer and H2OMap Sewer for Unfilled Depth and Surcharge Depth

New Mapping Feature in InfoSewer and H2OMap Sewer for Unfilled Depth and Surcharge Depth

This is a new features in H2OMap Sewer 10.5 SP1, Update 1 and InfoSewer SP1, Update 1.  You can now map the Maximum Unfilled Depth and Maximum Surcharge Depth during the Simulation in Map Display.
Unfilled Depth is the depth between the Rim Elevation and the Water Surface in the Manhole – the minimum is zero feet or meters
The Surcharge Depth is the Distance between the Rim Elevation and the Water Surface Elevation in the Manhole – it can be positive or negative (negative means the Node is under pressure)

### H2OMap SWMM Interface to SWMMLive

H2OMap SWMM has a new interface to SWMMLive programhttp://www.innovyze.com/products/swmmlive/ by @Innovyze
The AddOn to H2OMap SWMM allows the user to export their current  H2oMap SWMM model to the SWMM Engine of SWMMLive.
2.The engine data (in SWMM 5 format) is exported to SWMMLive using the Export Model to SWMMLive
3.You can graph the result of the SWMMLive model using the Diagnose SWMMLive Model Tab

### Guidelines for Help Files and Examples

Guidelines for Help Files and Examples

I have written a lot of software and have used a lot of software in my
career. I thought it would be good for me to list some guidelines I
try to follow when using and making software. I emphasis the word
guidelines as I often do not follow these guidelines. Think Wish list
when you read guideline. I have actually learned a lot from using

1.Some mention in the help file of the feature – at least some place to start the process of understanding.
2.Help file information to explain the background of the feature and common values for the parameters of the feature,
3.An example of how the feature is used – How do you even get it to work?
4.Rules and sensitivity of the feature – how is this feature linked to other features, what are the rules for using the feature and how sensitive is the feature?
5.An example of the feature along with
6.A bullet li…

### Innovyze Releases SWMMLive: Real-Time Stormwater, Wastewater and Watershed Modeling

Innovyze Releases SWMMLive: Real-Time Stormwater, Wastewater and Watershed Modeling Revolutionary New Product Equips Wastewater Utilities with Unprecedented Capabilities for Decision-Making and Real-Time Control Optimization Broomfield, Colorado, USA, December 17, 2013 Redrawing the boundaries of collection system modeling, Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the worldwide release of SWMMLive for real-time operational forecasting and management of urban drainage systems. The pioneering release provides wastewater utilities timely, accurate and reliable forecasts of what will happen within a catchment, based on past and current observations of a multitude of parameters along with future rainfall predictions. It also helps them identify flood-vulnerable assets and formulate sound remediation/mitigation strategies.

The product combines the comprehensive urban drainage modeling capabilities of

### Flight Calls Reveal Bird Migration Patterns

Flight Calls Reveal Bird Migration Patterns: http://t.co/L3mJtOL4PP— Elemental (@elementalDIY) December 10, 2013

### Innovyze Introduces ICMExchange, First Fully Customizable Integrated Catchment Modeling Solution for Power Decision Making

Innovyze Introduces ICMExchange, First Fully Customizable Integrated Catchment Modeling Solution for Power Decision Making New Programmer’s Toolkit for Industry-leading InfoWorks ICM To Support Comprehensive Urban and Rural Catchment Managment As Adoption Expands Broomfield, Colorado, USA, December 10, 2013 Expanding the boundaries of smart water network innovation, Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the release of ICMExchange, a full-featured programmer’s toolkit for its industry-leading InfoWorks ICMICMExchange provides scripting language access to the features of the modeling software, enabling users to build, access, and modify model databases and seamlessly interface with other software to suit application-specific needs. These abilities empower them to work more efficiently and instantly get the reliable information they need to make better design and operational decisions for opti…

### Soffit Level

Soffit Level
(pipe technology)The top point of the inside open section of a pipe or box conduit.
The soffit is the highest point of the internal surface of a pipe or culvert at any cross-section. The soffit is also referred to as the pipe obvert.
So it is not quite the Crown of the Pipe.  Here is an image I found that hopefully explains it better.

### Runoff from One Watershed for a 100 Year Simulation with SWMM 5 Statistics for the Subcatchment Impervious and Pervious Depth

Introduction:  This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download athttp://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics.   I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter.   It also helps show sometimes when a parameter is not important.
Discussion:  In this blog we look at the Subcatchment Runoff Depth for the three types of Subcatchment Surfaces in SWMM 5: 1.Impervious with depression storage
2.Impervious without depression storage
3.Pervious area with depression storage

As you can see in the graphs of depth (Figure 1) the pervious depth is often zero as the infiltration is greater than the continuous rainfall.  Of course this depends on the rainfall intensity, infiltration type and infiltrat…