Showing posts with label Infiltration. Show all posts
Showing posts with label Infiltration. Show all posts
Saturday, October 6, 2012
Hydrology and Floodplain Analysis (5th Edition)
Thursday, August 23, 2012
How Does Horton Infiltration Work in SWMM 5?
This sketch summarizes what happens in a SWMM 5 Subcatchment for Horton Infiltration during a storm event:
1. The event starts out with the potential infiltration rate at the maximum infiltration rate but
2. Decay starts happening right away and the potential infiltration rate starts decreasing until it reaches the minimum infiltration rate (assuming the storm last long enough),
3. The actual infiltration rate is the minimum of the rainfall rate or the potential infiltration rate,
4. Using the Huff distributions for rainfall the runoff does not start happening until the rainfall rate exceeds the potential infiltration rate in these models
5. The runoff ceases after the rainfall rate becomes less than the current potential infiltration rate later in the storm,
6. The maximum infiltration volume for Horton caps the storm event infiltration at 10 mm in this example, the infiltration will cease when the cumulative infiltration reaches 10 mm.
7. Horton Iniltration is a five parameter method
a. Maximum infiltration rate in mm/hour
b. Minimum infiltration rate in mm/hour
c. Decay rate for the change from maximum to minimum infiltration rate
d. Regeneration rate for the change from minimum to maximum infiltration rate after the storm event ends and
e. A maximum infiltration volume per storm event in millimeters
 |
Thursday, August 16, 2012
Fifty Years of Watershed Modeling – Past, Present and Future
Fifty Years of Watershed Modeling –
Past, Present and Future
September 24-26, 2012
Boulder, Colorado
Boulder, Colorado
On behalf of Engineering Conferences International and the conference chairs, Anthony S. Donigian, Jr. (AQUA TERRA Consultants), andRichard Field (US Environmental Protection Agency/ORD [retired], Michael J. Baker Jr., Inc.), it is my pleasure to extend this invitation to you to participate in Fifty Years of Watershed Modeling – Past, Present and Future to be held September 24-26, 2012 at NCAR (National Center for Atmospheric Research – Center Green Campus) in Boulder, Colorado.
Continuous Simulation using SWMM 5 LID and Groundwater Features in a Linked 1D/2D Network using InfoSWMM 2D for a 50 Year Period
has been accepted for Poster Presentation at the forthcoming conference Fifty Years of Watershed Modeling: Past, Present and Future to be held September 24-26, 2012 at National Center for Atmospheric Research (NCAR – Center Green Campus) in Boulder, Colorado.
Friday, August 3, 2012
Rules for NRSCS Unit Hydrographs in InfoSWMM
Subject: Rules for NRSCS Unit Hydrographs in InfoSWMM
Subject: Rules for NRSCS Unit
Rules or Guidelines for NRSCS Unit Hydrographs if used as the Hydrology Option in InfoSWMM and H2OMAP SWMM:
1. The Unit Hydrograph CN comes from the Subcatchment Table and the NRCS_CN Column
2. Time of Concentration is from the TC column in the Subcatchment Table
3. The Infiltration Model should be from the CN infiltration Model Column in the Subcatchment Database Table
4. The CN in the Soil Database Table should be the same as the CN in the Subcatchment Database Table
5. If the Depression Storage is zero in the Subcatchment Database Table then the Initial Abstraction in inches will be calculated as 0.2*(1000/CN-10) internally in the engine
6. Initial Abstraction or IA in US Units = 0.2*(1000/CN-10) in American Units
 |
Monday, July 30, 2012
InfoSWMM v11.1 Changes to Date
InfoSWMM v11.1:
Support ArcGIS 10.1.
InfoSWMM or H2OMAP SWMM import:
corrected the typos in error messages. (HsHxfSvr.dll, N/A, 6/22/2012)
Improvement: for better
hours/minutes listing in Report Manager Report Table for Continuous Simulation
with Odd Report Time Step Intervals. For example, this fix improved the
output time display for irregular (in
60 minute sense) output time
steps. Now it displays 00:50, 01:40, etc. more correctly than before
(00:49, 01:39, etc). (HsOutPkg.dll, N/A, 6/21/2012)
Improvement or Bug Fix:
Added an IF statement to the RDII
Unit Hydrograph Convolution for the rare instances in which the user sets
the time base of the UH to zero by setting either T or K to zero. The
Time Base is T*K in the
convolution integral and zero
values are not allowed. This bug was also forwarded to the EPA for a
future SWMM 5. The convolution uses the value of R and the Time Base to
estimate the amount of Infiltration and
Inflow in the Sewer Network.
The short, medium and long term UH’s are estimated at each Wet Hydrology time
step to make a smooth hydrograph out of the R, T and K parameters of the
Rainfall Dependent Infiltration
and Infiltration Method.
(HsEngPkg64.dll and HsEngPkg.dll, N/A, 6/21/2012)
Improvement: More information for
the user when one of nine SWMM 5 warning messages are listed in the HTML Output
File. (HsEngPkg64.dll and HsEngPkg.dll, N/A, 6/21/2012)
These are the nine SWMM 5 Warning Messages
"WARNING 01: wet weather time step reduced to recording interval for Rain
Gage"
"WARNING 02: maximum depth increased for Node"
"WARNING 03: negative offset ignored for Link"
"WARNING 04: minimum elevation drop used for Conduit"
"WARNING 05: minimum slope used for Conduit"
"WARNING 06: dry weather time step increased to the wet weather time
step"
"WARNING 07: routing time step reduced to the wet weather time step"
"WARNING 08: elevation drop exceeds length for
Conduit"
"WARNING 09: time series interval greater than recording interval for Rain
Gage"
And Here is the Extra Information Now Saved to the HTML Output File in case the
user wants to know what is used internally in the engine. This is
especially handy information when moving a SWMM 5 model to
IWCS or ICM.
Application Framework: introduce
the new “Inherited” Facility Set option. Scenario can now inherit
facility selection from its ancestor which possesses a non-inherited facility
definition. (HsCadPkgPkg.dll,
HsUI2Pkg.dll, and HsDBBPkg.dll,
N/A, 6/21/2012)
New Option in DB Tables for Scenarios
Correction:
The export to the hydqua.inp file
when you solve a H2OMAP SWMM model now includes the infiltration data even if
the Subcatchment DB Infiltration column is blank after the import of a SWMM 5
file. The blank row
defaults to the global Infiltration
option in Base Simulation Options. (HsDataPkg.dll, N/A, 6/14/2012)
Correction:
Eliminated a duplicate graph of
storage infiltration in the Low Impact Development. (HsOutPkg.dll, N/A,
6/14/2012)
Correction:
Implemented a future EPA fix for
infiltration loss on a pervious surface if snowmelt is being
simulated. This fix will be part of SWMM 5.0.023. (HsEngPkg64.dll
and HsEngPkg.dll, N/A, 6/13/2012)
The error was the double counting
the accumulation of snow cover as infiltration in the mass balance table – here
is the mass balance without the fix in SWMM 5.0.022
Fixed the problem of Edit Domain
Attribute. It was caused by a table relate issue in DB engine.
(HsMapSrv10.dll, N/A, 5/29/2012)
Recompiled to fix a compatibility
issue of the validation tool. (HnUtl.dll and HsUtlSrv.dll, N/A, 5/29/2012)
CapPlan
-------
Fix flowchart run issue.
(HsCIPSrv.dll, N/A, 5/29/2012)
InfoSWMM v11 Update 10:
Changes & Improvements
Fix subcatchment vertex export
issue for EPS-SWMM. (H2OSWMM.exe, N/A, 4/18/2012)
Scenario Comparison: Now, the
“Hide Unchanged Column(s)” right-click command works correctly. (HsUI2Pkg.dll,
N/A, 4/17/2012)
Netview Storage/Wet-Well Output:
Fixed an invalid output data field problem. (HsOutPkg.dll, N/A, 4/12/2012)
Scenario Comparison: Fixed
Duplicated ID Alias problem. (HsUtilPkg.dll and HsDBBPkg.dll, N/A, 4/11/2012)
Crashed Project Restoration: Now,
active scenario ID could be reliably restored
RDII
-----
Check negative GA Hydrograph
solution value during export back to InfoSWMM or H2OMAP SWMM. (HsRDIIPkg.dll,
N/A, 5/3/2012)
InfoSWMM v11 Update 9:
Changes & Improvements
Simulation Run Report : Added a
Scenario data source reference to the title notes section of the RPT file.
(HsEngPkg.dll, HsEngPkt64.dll, and HsDataPkg.dll, N/A, 3/15/2012)
Simulation Run Output Data Access:
Improved 64-bit access reliability for simulation run output data.
(HsEngPkg.dll, HsEngPkg64.dll, and HsOutPkg.dll, N/A, 3/19/2012)
Small Time Base fix for RDII flow
to match an upcoming SWMM 5 version (HsEngPkg.dll, HsEngPkt64.dll, and
HsDataPkg.dll, N/A, 3/16/2012) :
Description: SWMM 5 makes the time
interval used for convoluting the unit hydrographs within a group the smaller
of the wet runoff step and the smallest time to peak for the
hydrographs in the group. This
works OK when all the hydrographs have rising limb durations no longer than
that of the falling limb (i.e., K >= 1.0). For example, the short term
UH has a K value of 0.3, with
rising limb time of 42 minutes and falling limb time of 12.6 minutes. As
a result, the time interval selection rule stated above was producing too
large a time step for a wet runoff
step of 30 minutes causing the convolution to ignore a good portion of the
UH. The rule was modified to compare the wet step to the SMALLER of
the time to peak and time to
recede.
Importance of this for past
and future InfoSWMM and H2OMAP SWMM models:
1.
Again, it is a significant and BETTER reason to use the current SWMM 5 engine
over v13 of the SWMM 5 engine,
2.
It makes the convolution more robust for a small time base in the RTK method or
the Time Base= T*K
3.
It may cause RDII flow differences in this engine if T*K is small over past
engines
Add Vertical Roughness to
preferences dialog. (HsMapSrv.dll, N/A, 4/4/2012)
2D
---
Upgrade
InfoSWMM v11 Update 8:
Changes & Improvements
Retain the compatible size for dialog
boxes with fixed frame when user changes the screen resolution (DPI) in Windows
7. (HnUtilPkg.dll, N/A, 2/15/2012)
Support upcoming Innovyze
application data folder and new product configuration file location.
(HxLoader.dll, N/A, 2/15/2012)
Fix: Improved the Change ID
beep interval for a change to the element ID using the Change ID Command.
(HsUtilPkg.dll and HsCadPkg.dll , N/A, 2/4/2012)
Import of a SWMM 5 File with a
Duplicate ID now tells you the name and class of object that is duplicated so
it can be edited in SWMM 5.(HsDataPkg.dll, N/A, 1/31/2012):
New Feature
(HEC_HMS_HYETOGRAPHS.inp, N/A, 2/2/2012):
How to import the 44 possible SCS
Storms from HEC-HMS. The file HEC_HMS_HYETOGRAPHS.inp is imported
into InfoSWMM using the command Import EPASWMM 5 Data to import just the
Raingage and Timeseries data from SWMM5. The Timeseries data is a copy of
the HEC-HMS data for each of the possible SCS Storms for SCS Type1,
Type1A, Type2 and Type3 for 1 minute, 2 minute, 3 minute, 4 minute, 5
minute, 6 minute, 10 minute, 15 minute, 20 minute, 30 minute and 1 hour
intervals, respectively. This is done so that the user of InfoSWMM
has the option of using the exact HEC-HMS dimensionless precipitation for every
interval and every SCS Storm Type.
New Feature (huff.inp, N/A,
2/2/2012):
How to import a dimensionless Huff
distribution into InfoSWMM from http://www.alanasmith.com/theory-Derivation-Huff-Storm.htm
using the SWMM 5 Import Command and a simple SWMM 5 file with Huff Distribution
Rainfall.
CapPlan
--------
Fix Final Summary Report Field
Offset. (HsCIPSrv.dll, N/A, 2/29/2012)
Fix database compatibility after
version upgrade for Final Condition calculation (HsCIPSrv.dll and
HsCIPSrv10.dll, N/A, 3/2/2012)
InfoSWMM v11 Update 7:
Changes & Improvements
Altered the last cumulative
rainfall value to use exclusively the polynomial value. (HsUI4Pkg.dll , N/A,
1/18/2011)
The ending value for example for a
10 inch hyetograph is now
SCS1
9.9 inches
SCS1A
10.008 inches
SCS2
10.0 inches
SCS3
10.0 inches
For the 4 types of SCS
Hyetographs, instead of setting the ending rainfall value to 10 inches which
caused a small spike in the SCS Type 1 hyetograph for the last point in the SCS
hyetograph
CapPlan
--------
Fix FlowChart Analysis when
project does not have CCTV data. (HsCIPSrv.dll, N/A, 1/20/2012)
InfoSWMM v11 Update 6:
Integration of Arc GIS 9.3 and Arc
GIS 10.0 Installs
InfoSWMM v11 Update 5:
Changes & Improvements
SWMM 5 Export of Dry Weather Flow
(HsDataPkg.dll , N/A, 10/25/2011) :
1. Many of
our users use our DWF Allocator to assign dry weather flow to nodes based on
meter data or loading areas
2. If they do
this improperly then they may get many rows of DWF with zero flows in H2OMAP
SWMM
3. This does
not matter to H2OMAP SWMM as unlimited loads can be assigned to a node but
4. This is a
problem in the export to SWMM 5 as SWMM 5 has a limitation of one DWF load per
node
5. Zero DWF
loads at a node are now NOT exported to SWMM 5 which makes this more compatible
with the internal rules of SWMM 5
6. Only Non
Zero DWF’s are now Exported
Fixed Dialog Display Issues for
Annotation Dialog – moved label frames for overlapping frames. Annotation
is the 3rd Tab in the InfoSWMM Attribute Browser. (HsMapSrv10.dll, N/A,
10/24/2011)
Fix Validation Rule Buffer issue.
(HsUI4Pkg.dll, N/A, 10/21/2011)
Fix: A Change to
the Rule Control Status from Open/Close to On/Off for EPA SWMM 5 Control
Section Compatibility. (HsUI4Pkg.dll, N/A, 10/20/2011)
[CONTROLS]
RULE LS-32_PMP-1
IF PUMP LS-32_PMP-1 STATUS = ON
AND PUMP LS-32_PMP-1 STATUS = ON
THEN PUMP LS-32_PMP-1 SETTING = 0.100000
PRIORITY 1.00000
RULE LS-32_PMP-1A
IF NODE LS-32 DEPTH > 6.250000
AND PUMP LS-32_PMP-1 STATUS = ON
THEN PUMP LS-32_PMP-1 SETTING = 0.750000
PRIORITY 1.0000
Fix dialog boxes display issues
for Win7. (HsMapSrv10.dll, HsCIPSrv10.dll, and HsCIPSrv10.dll, N/A, 10/21/2011)
CapPlan
--------
Improve Scoring Speed for Pipe
Condition Scores. (HsCIPSrv.dll, N/A, 12/5/2011)
InfoSWMM v11 Update 4:
Changes & Improvements
DB Editor: Newly Added Information Field won’t appear until
the table is re-opened. It is now fixed. (HsUtilPkg.dll and HsDBBPkg.dll,
N/A, 10/5/2011)
Attribute Browser: Edit Junction Tables All, Domain
and Selection were not loading – it is now fixed. (HsHxfSvr.dll and
HsDBBPkg.dll, N/A, 10/2/2011)
Fixed a Windows 7 display issue of Preferences dialog.
Attribute Editor: Prevented the dialog switching to the
first tab when users sort a data column. This is now fixed.
(HsMapSrv9.dll and HsMapSrv10.dll, N/A,10/2/2011)
Edit Selection Attributes
Edit Domain Attributes
Group Editing on Selection
Group Editing on Domain
Subcatchment
--------------
Subcatchment Manager: Improved the Exception Handling
for Creating Subcatchments. (HsSubcatchSrv10.dll , N/A, 10/11/2011)
InfoSWMM v11 Update 3:
New = A very important feature in InfoSWMM and H2OMAP SWMM
is the ability to have Network Scenario’s. Each Network Scenario is
either a Base Scenario or a Child Scenario of the Base Scenario or other Child
Scenario’s. The Child Scenario’s may have different Data
Set’s associated with them but previously in InfoSWMM and H2OMAP SWMM you could
only use the DB Editor with the Data Sets in the Active Scenario.
You can now use the DB Editor to edit ANY Data Set from any
Scenario by using the new Data Set Selection Command at the bottom of the DB
Open Table Dialog or by clicking on the ellipsis at the bottom of the dialog.
(HsDBBPkg.dll, N/A, 8/26/2011)
An Internal Engine Feature in SWMM 5 and of course in
H2oMAP SWMM and InfoSWMM is the automatic raising of the node rim elevation
when any connecting pipe crown, weir or orifice is above the existing rim
elevation. Many users of our software use this feature to eliminate
the need for entering node maximum depths. The input HGL profile for
would show the zero maximum depth of the node – this is now fixed and the
program will plot the highest connecting link crown as the node rim elevation.
(HsUI3Pkg.dll and HsOutPkg.dll, N/A, 8/26/2011)
HGL Visual Representation of Weirs, Orifices and Outlets in
Input and Output HGL Plots
- Weir, Orifice and Outlets Inverts and Crest Elevation are
now shown flat to correspond to the SWMM 5 internal Engine Convention
Link[j].offset2 = Link[j].offset1;. (HsUI3Pkg.dll and
HsOutPkg.dll, N/A, 8/26/2011)
The infiltration or evaporation storage node or pond in
InfoSWMM may be simulated using Green Ampt Infiltration and Pan Evaporation
using options in the Attribute Browser. (HsEngPkg.dll and HsEngPkg64.dll, N/A,
8/31/2011)
The fixes are:
1. The System
Evaporation is now in units of inches/day or millimeters/day
2. Extra
Decimal places were added to the Storage Summary Table
CapPlan
----------
Fix buffer unit conversion so that the proper judgment
about the closeness of two pipe defects so that the program may consider
merging them. (HsCIPSrv10.dll , N/A, 9/12/2011)
Fix cost lookup with Max. Depth and Min Depth.
(HsCIPSrv10.dll , N/A, 9/19/2011)
2D
---
Trying to color code 2D results might crash the program
after mesh data was manually deleted. Now it has been fixed.
(HsSDServices.dll , N/A, 9/14/2011)
DB Editor: Allow the user to edit data table of any desired
DATA SET. (HsDBBPkg.dll , N/A, 8/22/2011)
InfoSWMM v11 Update 2:
Exchange\Import EPA SWMM 5 Command:
The Offsets Elevation Flag in a SWMM 5 import data set is
now both imported and translated to the Store Absolute Condit Invert Flag in
Tools Preferences/Operation in InfoSWMM. This allows more SWMM 5
compatibility for the InfoSWMM flags using the Import EPA SWMM 5.0.001 to EPA
SWMM 5.0.022 Command. (HsDataPkg.dll, N/A, 7/29/2011)
HGL Profile for Small q/Q values:
The output report manager HGL Profile no longer sets the
color of the link fill to white when the value of q/Q and the velocity
are both small. A value of d/D of 1 will still show a blue fill color in
the HGL Plot. (HsOutPkg.dll, N/A, 7/29/2011)
Fix of a Hyetograph Name Typo and Reordering.
(HsUI4Pkg.dll, N/A, 8/8/2011)
SCS Hydrology CN Printout Clarification: CN in the Output
Text File and Output Report Manager. (HsEngPkg.dll and HsEngPkg64.dll, N/A,
8/4/2011)
Trace Network: Insufficient memory allocation for model
with long IDs caused the program to crash in Arc GIS. It is now fixed.
(HsUI2Pkg.dll, N/A, 8/4/2011)
Just a reminder as well for Joe – all of Chun-Hou’s recent
changes for SCS Hydrology are NOT in the most recent install. 8/11/2011
hsnetviewsrv10.dll
Project Init & Save: support the new ESRI File
Geodatabase project. (HeUtilPkg.dll, N/A, 8/18/2011)
Add Risk Tile to report and summary. (HsCIPSrv.dll, N/A, 8/19/2011)
InfoSWMM v11 Update 1:
Output Relate: Fixed Output Relate generation problem for
the Junction Summary report. (HsOutPkg.dll, N/A, 6/23/2011)
Increased Mix Graph Options for Outfall Data and System
Data. (HsUI2Pkg.dll and HsEngPkg.dll, N/A, 6/6/2011)
Name change for Innovyze-SWMM LID Report File
Importing EPA SWMM file was using an incorrect file
selection dialog. Now it has been fixed.
An update to the DWF Pattern Calculation at Hour 24 when
using Variable Time Step. The pattern is now set at the pattern at hour
23 based on pattern hours from 0 to 23. (HsEngPkg.dll, N/A,
5/27/2011)
Previously, the Variable Time Step would have an undefined
pattern value at hour 24 when the variable time step option was used but fixed
time step was properly set to the pattern at hour 23.
Missing file (HnFileMonitor.dll, N/A, 6/7/2011)
Enhanced Low Impact Development (LID) Water Quality
Graphics and Report. (HsStatPkg.dll,HsOutPkg.dll HsEngPkg.dll, HsEngPkg64.dll,
N/A, 6/7/2011)
Fix the Low Impact Development LID (HsUI4Pkg.dll, N/A,
7/21/2011) M
Underdrain Height Offset Dialog Unit.
The Underdrain Process Layer consists of:
1. Drain
Coefficient (inches/hour or millimeters/hour)
2. The Void
Ratio as a Fraction (0 to 1),
3. Drain
Exponent
4. Drain
Offset Height (inches or millimeters)
Changed the name of the Checkbox for Saving Output in the
Low Impact Development (LID) Usage Editor for Subcatchments. The Checkbox
if checked saves the detailed LID Control Pathways for each
Control in a Subcatchment (HsUI4Pkg.dll, N/A,
7/20/2011) M
Output Report Manager: A Change to the Output Report
Manager to better handle 1 second time steps in the Report Table Section.
This was added to better see the output for Pumps and Force Mains when the
Pumps turn on for only a few seconds. It also allows the user to see the
output data and graph a subset of a long simulation run. For
example, if the user saves at a one second time step for a week this will allow
him or her to see all 604800 data points and graph or perform statistics on 5
second intervals if needed. It was needed for those simulations in
which the Maximum and Report Time Steps are the Same and the time step is
small. If you do save a million or more data points it would behoove you
to use the Domain only as the Output Scope in the Run Manager to cut down on
graphing time and the Out Folder Size. (HsOutPkg.dll, HsEngPkg.dll, N/A,
7/15/2011) M
Browser Simulation Report: Added the Outfall Loading
Summary to the Browser Simulation Report to be compatible with the SWMM 5.0.022
Status Report; this information has been and is also available as a Tabular
Report in the Output Report Manager
The change is for both the 32 and 64 bit Engines as well as
the Output Report Manager. (HsEngPkg64.dll, N/A, 7/15/2011) M
Put in the LID Help ID and Help Topics connected to the
Help ID. (HsUI4Pkg.dll, N/A, 7/26/2011)
Increased Mix Graph Options for Outfall Data and System
Data. (HsUI2Pkg.dll and HsEngPkg.dll, N/A, 6/6/2011)
Name change for Innovyze-SWMM LID Report File
Change MWH Soft to Innovyze in Preferences/Operation
Settings tab. (HsMapSrv.dll and HsMapSrv10.dll, N/A, 6/2/2011)
Importing EPA SWMM file was using an incorrect file
selection dialog. Now it has been fixed.
An update to the DWF Pattern Calculation at Hour 24 when
using Variable Time Step. The pattern is now set at the pattern at hour
23 based on pattern hours from 0 to 23. (HsEngPkg.dll, N/A,
5/27/2011)
Previously, the Variable Time Step would have an undefined
pattern value at hour 24 when the variable time step option was used but fixed
time step was properly set to the pattern at hour 23.
Missing file (HnFileMonitor.dll, N/A, 6/7/2011)
Hide cross section browser after loading. (H2OSWMM.exe,
N/A, 5/16/2011) H
Recompile due to compatibility for the Validation and Audit
Tools. (HsUtlSrv.dll, N/A, 5/16/2011) I
Updated EPA SWMM 5 Engine: Updated the InfoSWMM engine to
be compatible with the new SWMM 5.0.022 Version. (HsDataPkg.dll, N/A,
5/19/2011)
Fixed 2D license pop up. (HsUI4Pkg.dll, N/A, 5/24/2011) I
Fixed CapPlan license pop up. (CapPlanSvr, N/A, 5/23/2011) I
InfoSWMM Executive Products:
RDII
-----
Fix RDII Analyst GWI calculation Support Case
ID: 18853. (HsRDIIPkg.dll, N/A, 7/26/2011) M
InfoSWMM v11:
Changes & Improvements
----------------------
Add CCTV Grade Source Field, allow CCTV as a rehab for
Asset Grading, and change Advanced Scheduling to allow CCTV Rehab.
(HsCIPSrv.dll, N/A, 10/8/2010)
Export [POLLUTANTS] Data to EPA-Swmm: fixed missing
Pollutant ID data problem when the Description field is missing.
(HsDataPkg.dll, N/A, 10/22/2010)
Google Map Link: updated to support new Google map URL
syntax. (HaMapSrv.dll, N/A, 10/26/2010)
Output Report / Graph: enlarged time drop-down combo boxes
to accommodate longer simulation periods. (HnUI2Pkg.dll, N/A, 11/2/2010)
Output Manager Display: Fixed invalid Result error problem
when the report time step is small to include the extended Second portion.
(HsOutPkg.dll and HsUI3Pkg.dll, N/A, 11/2/2010)
Model Data Generation to Run Simulation: Fixed an invalid
flow unit problem when the DB table flow unit field is undefined.
(HsDataPkg.dll, N/A, 10/27/2010)
Fix to the Santa Barbara Urban Hydrograph Method to match
the UG equation 42’s usage of impervious area. (HsEngPkg.dll, N/A, 10/27/2010)
Add Media Player Detection message and fix radio button in
Planning due to Windows 7. (HsCIPSrv.dll , N/A, 11/15/2010)
Fix BiDirectional Risk Calculation. (HsCIPSrv.dll , N/A,
11/24/2010)
Allow users to zoom into the map in field report.
(Template\CIP\report folder , N/A, 11/20/2010)
Add Google Map to Field Report. (HsCIPSrv.dll , N/A,
11/20/2010)
Fixed a crash problem of Dual Drainage. (HsMapSrv.dll ,
N/A, 12/01/2010)
Compatibility Fix to Engineering Review Tools and Network
Audit Tools for Arc GIS 9 to prevent a Type Mismatch Error. (HsUtlSrv.dll ,
N/A, 12/15/2010)
This file should go into C:\Program Files\Common Files\MWH
Soft Shared. (HsUtlSrv.dll , N/A, 12/15/2010)
Improved the connection algorithm for the Locate/Fix
Conduit Split Candidates Tool as in InfoWater. (HsMapSrv.dll , N/A, 12/15/2010)
Create Storage Curve: an error message will be issued if
Spatial Analysis is not available to avoid program crash. (HsMapSrv.dll , N/A,
12/9/2010
Please select a node ...
Please specify a storage area...
ERROR 010096: There is no Spatial Analyst license currently available or
enabled.
No crash of program – just a message in the Message Area
New Requirement: When there is a set of outlets at each end
of a pipe, the user has to manually create the Major Conduit. (HsMapSrv.dll ,
N/A, 12/7/2010)
New Message: Could not determine the shape of Major Conduit
for conduit '8040A'. Please manually create it.
RAM
---
Fix Based on Maximum Head in Create Flood Damage Extent
Tool. (HsConseqSrv.dll, N/A, 3/5/2010)
Thursday, July 26, 2012
Low Impact Development Options in H2OMAP SWMM and InfoSWMM
Subject: Low Impact Development Options in H2OMAP SWMM and InfoSWMM
Subject: Low Impact Developme
The five options are:
1. Rain Barrel
2. Bio Retention Cell
3. Infiltration Trench
4. Vegetative Swale
5. Porous Pavement
and be entered as controls in the Hydrology Section of the Operations Browser of H2OMAP SWMM or InfoSWMM (
Figure 1. The Attribute Browser Operation Tab allows you to enter LID Controls for your LID Modeling.
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Saturday, July 14, 2012
Product Sector Leader for InfoSWMM , InfoSewer and InfoSWMM 2D Innovyze Inc.
Note: My Current Job Title and Email Address and of course Robert.dickinson@gmail.com will also work to contact me if you have a modeling question.
Robert Dickinson
Visit the Innovyze Blog for in-depth discussions of product features, insightful videos, and links to industry news (at blog.innovyze.com)
Product Sector Leader for InfoSWMM , InfoSewer and InfoSWMM 2D Innovyze Inc.
9340 Pontiac Drive Tel: 813-712-0664 Tampa, Florida USA 33626
Friday, July 13, 2012
How is RDII Storage Simulated in SWMM 5?
Subject: How is RDII Storage Simulated in SWMM 5?
Subject: How is RDII Storage Simulated in S
If you are using the SWMM 5 Rainfall Dependent Infiltration and Inflow(RDII) feature you can also use the RDII storage parameters to change the RDII runoff by simulating the storage in the Sewershed. The code in RDII.C as implemented by Lew Rossman of the EPA keeps track of used and unused initial abstraction or IA (Figure 1)
When there is rainfall the following actions are taken:
· The raindepth available to be convoluted by the RDII unit hydrograph method is reduced by unused IA
· The amount of IA used up is then updated
When there is no rainfall
· A portion of the IA already used is recovered using the recovery rate parameter and the variable IAUsed
Figure 1. The long term effect of the RDII storage on the generated RDII Unit Hydrographs. IA1, IA2 and IA3 are the Storage values for the short, medium and long term UH's.
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Thursday, July 12, 2012
Four factors in Rainfall Dependent Infiltration and Inflow or RDII in SWMM 5
There are Four factors in Rainfall Dependent Infiltration and Inflow or RDII in SWMM 5:
There are Four factors in Rainfall D
1. The fractional response to Rainfall or R from 0 to 1
2. The Time Base of the Unit Hydrograph or T in hours * Dimensionless K Shape Factor
3. The Sewershed Contributing Area in acres or hectares and
4. The Maximum, Initial Abstraction and Recovery Rate for R on a Monthly Basis in units of inches, mm or mm/day,
5. The fifth and probably the most important factor is the Rainfall
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Tuesday, July 10, 2012
How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?
Subject: How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?
Subject: How is the Soil Saturated Conductivit
How sensitive is the infiltration loss and rate to the Soil Saturated Conductivit
· In low rainfall everything infiltrates as irate less than Infil>Ks and
· In the check to see if the soil is already saturated.
Figure 1. The three parameters for Green-Ampt Infiltration in SWMM 5
Figure 2. The sensitivity of the total infiltration loss to the soil saturated conductivit
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How is Capillary Suction Head Used in SWMM 5 Green-Ampt?
Subject: How is Capillary Suction Head Used in SWMM 5 Green-Ampt?
Subject: How is Capillary Suction Head Used
How sensitive is the infiltration loss and rate to the capillary suction head
C1 = (Suction Head + Depth of Ponded Water) * IMD or Initial Moisture Deficit
Figure 1. The sensitivity of the total infiltration loss to the capillary suction head in a continuous simulation
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