## Sunday, June 22, 2014

### Peaking flow in InfoSewer Steady State applied as Total Flow in an EPS Simulation

A list of steps you need to take to use the Peak Flow from a Steady State Run in an EPS Simulation include
1.       Use Peaking Factor in InfoSewer for Steady State
2.      Copy Total Loads at Manholes
3.      Use the Total Loads in an EPS simulation
4.      Run the EPS Simulation for a short period of time
5.      If might help to have two scenarios for this copy and pasting
6.      Use the Advanced FM solution for only the EPS Simulation
 Peaking flow in InfoSewer Steady State applied as Total Flow in an EPS Simulation

## Wednesday, June 11, 2014

### How to make a smaller model out of your larger InfoSWMM or H2OMap SWMM network

How to make a smaller model out of your larger InfoSWMM or H2OMap SWMM network:
•       Make a domain and then an active facility from the domain for your larger network
•       Export the Active Newtork in the current scenario to SWMM 5
•       Import the smaller model from SWMM 5 into a different InfoSWMM model
•       You now have a smaller model in InfoSWMM or H2OMap SWMM.

 Steps to Make a Smaller Model from an InfoSWMM or H2OMap SWMM Model

## Sunday, June 8, 2014

### d/D, q/Q for a Link in SWMM 5, InfoSWMM and H2oMap SWMM

d/D, q/Q for a Link in SWMM 5, InfoSWMM and H2oMap SWMM

How do we look at the various measures of "fullness" in a pipe of link in SWMM 5?  Here we look at some graphs from InfoSWMM.

d/D is the pipe depth over the full depth of the link
q/Q is the current link flow over Qfull for the link (Q full is the full flow of a link based on Manning's equation)  This Qfull is based on the bed slope of the link.   You can have a q/Q or q/Qfull greater than 1 if the water surface slope is greater than the bed slope of a link.  This is especially true for flat links where SWMM 5 has a minimum slope of 0.001

The image shown below shoes that at the peak flow in the links is greater than 1 even though the pipe is not full (d/D less than 1) for this model of flat slopes.  Qfull is a comparison metric and not the result of the simulation.
 d/D, q/Q for a Link in SWMM 5, InfoSWMM and H2oMap SWMM

## Friday, June 6, 2014

### Clouds and Water in NYC via @Boonsri

Clouds and Water in NYC via @Boonsri

### Urban frogs adapting to Urban Stormwater Networks in Taiwan

Urban frogs adapting to Urban Stormwater Networks in Taiwan

"The frogs have learned to overcome that limitation by calling from within storm drains, since the drains enhance both volume and duration, allowing the frogs' calls to reach receivers both nearby and farther away.
"Concrete drains are miniature canyons, but are not analogous to anything in Mientien tree frog natural habitats," the researchers say. "Therefore, it is interesting to find those frogs preferentially calling in the drains." The frogs have taken the human built environment and turned it into a tool, rather than an obstacle to overcome, allowing their species to survive an environment dominated by our species."

## Monday, June 2, 2014

### New SWMM 5.1.006 is now available from the EPA Site

New SWMM 5.1.006 is now available from the EPA Site

http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/

with these engine changes

```-------------------------
Build 5.1.006 (5/19/2014)
-------------------------

1.   The updating of the next time that detailed LID results
should be written to file during a simulation was modified
to avoid an off-by-one error.

2.   The number of decimal places for hourly evaporation written
to a detailed LID report was increased.

3.   The amount of soil water available for evaporation in
LID units with soil layers wasn't being limited by the
water remaining below the wilting point.

4.   The equation that computes the rate of water infiltrating
into permeable pavement LIDs had a misplaced parenthesis.

5.   There was a units conversion error in computing the
contribution of a pollutant in direct precipitation
to the water quality on a subcatchment.```

### AI Rivers of Wisdom about ICM SWMM

Here's the text "Rivers of Wisdom" formatted with one sentence per line: [Verse 1] ðŸŒŠ Beneath the ancient oak, where shadows p...