Showing posts from March, 2012

Dual Drainage in SWMM 5

Subject:  Dual Drainage in SWMM 5

The purpose of the Dual Drainage tool in InfoSWMM is to create a major or street drainage network on top of an existing pipe or what is called the minor network in  dual drainage.  The created major network has a node (sometimes called the inlet node) on top of the existing minor network node connected by two  OUTLET links.  One outlet link takes the flow from the street and  passes it to the minor network node, the second outlet link  takes the surcharged minor network flow and passes it to the major network or street – the direction of flow is important (Figure 1).  The general purpose of the Captured OUTLET is to  use a head or depth equation to separate the street incoming  flow into captured flow and bypass flow

Figure 1.  Dual Drainage in General
Figure 2.  How it looks in SWMM 5 with node, outlet and conduit elements.

Bloomberg: Heat Waves, Rains Probably Linked to Warming, Scientists Say

Heat Waves, Rains Probably Linked to Warming, Scientists Say By Rudy Ruitenberg - Mar 26, 2012 6:23 AM ET Heat waves and extreme rainfall in the past decade are probably linked to global warming, according to a study by scientists at the Potsdam Institute for Climate Impact Research. “For some types of extreme, notably heat waves but also precipitation extremes, there is now strong evidence linking specific events or an increase in their number to the human influence on climate,” the scientists wrote in a study published in the journal Nature Climate Change. The past decade included Europe’s hottest summer in at least 500 years in 2003, according to the scientists. 2010 brought western Russia’s hottest summer in centuries and record rain in Pakistan and Australia, they wrote. Japan and some U.S. states registered all-time-high rainfall last year, while the Yangtze River basin in China had a record drought. Basic physics exercises suggest that warming of the atmosphere leads to more e…

How to Make a SWMM 5 Calibration File from InfoSWMM

Subject:  How to Make a SWMM 5 Calibration File from InfoSWMM 1st Step:  Graph a Link  in InfoSWMM using the Date /Time Format 2nd Step:  Click on the Report Button and copy the 1st two columns of data 3rd Step:  Save the  copied columns to a data file, replace the semi colon and add the name of the link  to the top of the data file as shown below 4th Step:  Connect the created calibration data file t o the SWMM 5 Calibration Data Link Flow Rate 5th Step:  Run the  Simulation and you should see two  graphs on the screen for the designated link
How to Make a SWMM 5 Calibration File from InfoSWMMby dickinsonreSubject:  How to Make a SWMM 5 Calibration File from InfoSWMM 1st Step:  Graph a Link  in InfoSWMM using the Date /Time Format 2nd Step:  Click on the Report Button and copy the 1st two columns of data 3rd Step:  Save the  copied columns to a data file, replace the semi colon and add the name of the link  to the top of the data file as shown below 4th Step:  Connect the created calibrat…

Past in Monsoon Changes Linked to Major Shifts in Indian Civilizations

ScienceDaily (Mar. 16, 2012)— A fundamental shift in the Indian monsoon has occurred over the last few millennia, from a steady humid monsoon that favored lush vegetation to extended periods of drought, reports a new study led by researchers at the Woods Hole Oceanographic Institution (WHOI). The study has implications for our understanding of the monsoon’s response to climate change. The Indian peninsula sustains over a billion people, yet it lies at the same latitude as the Sahara Desert. Without a monsoon, most of India would be dry and uninhabitable. The ability to predict the timing and amount of the next year’s monsoon is vital, yet even our knowledge of the monsoon’s past variability remains incomplete. One key to this understanding lies in the core monsoon zone (CMZ) – a region in the central part of India that is a very sensitive indicator of the monsoon throughout the India peninsula. “If you know what’s happening there, you know more or less what’s happening in the rest of …

Importing and Comparing Simulation Results between InfoSWMM and SWMM 5

Subject:  Importing and Comparing Simulation Results between InfoSWMM and SWMM 5 Normally, you get the same answer in InfoSWMM and the current version of SWMM 5 for the hydrology, RDII, dry weather flow and wet weather flow but be aware that the imported SWMM 5 model had a default of 8 iterations for the number of Picard iterations whereas the imported SWMM 5 model in InfoSWMM has as default of  4 iterations.  You need to change this to 8 iterations in the Run Manager dialog of InfoSWMM to get the same routing answers.

How to Copy from a SWMM 5 Table to Excel

Subject:  How to Copy from a SWMM 5 Table to Excel Step 1. Highlight the rows you want to copy to Excel Step 2:  Use the Copy to Clipboard or Copy to File command Step 3:  Paste in Excel or open the exported text file
How to Copy from a SWMM 5 Table to Excelby dickinsonreSubject:  How to Copy from a SWMM 5 Table to Excel Step 1. Highlight the rows you want to copy to Excel Step 2:  Use the Copy to Clipboard or Copy to File command Step 3:  Paste in Excel or open the exported text file  via Blogger

Copy-and-pasting Culture

Copy and Pasted from the Dish
Copy-and-pasting Culture Maria Popova quotes from Mark Pagel's new bookWired for Culture: Origins of the Human Social Mind: "Having culture means we are the only species that acquires the rules of its daily living from the accumulated knowledge of our ancestors rather than from the genes they pass to us." Popova: Language, says Pagel, was instrumental in enabling social learning — our ability to acquire evolutionarily beneficial new behaviors by watching and imitating others, which in turn accelerated our species on a trajectory of what anthropologists call "cumulative cultural evolution," a bustling of ideas successively building and improving on others. (How’s that for bio-anthropological evidence that everything is indeed a remix?) Pagel elaborated in a recent Edge conversation: We can all think of things that have made a difference in the history of life. The first hand axe, the first spear, the first bow and arrow, and so on. And…