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Showing posts with the label Horton

New - Five Infiltration Options Now in InfoSWMM v14 and H2OMap SWMM v14 for Watershed Modeling

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Infiltration from the pervious area is a marvelous and from a runoff volume and runoff peak perspective a vital process in modeling the hydrology and ultimately the hydraulics of your Watersheds.  Figure 1 shows the five options available in InfoSWMM and H2OMap SWMM after the version 14 update which was based on the EPA SWMM 5.1.010 release:  Horton  Modified Horton   Green Ampt   Modified Green Ampt   Curve Number Not only can you have a different Infiltration option per Model Simulation but you can have different options for each scenario and even for individual Subcatchments in a Scenario (Figure 2).  In #InfoSWMM and H2OMap SWMM the Soil DB table (Figure 3) shows the individual parameters that apply to Horton, Green Ampt and Curve Number infiltration. The Modified Horton and Green Ampt have the same parameters as the Horton and Green Ampt Soil Types.  The Soil Coverage is specified in the Subcatchment DB Table or individually in the Subcatchme...

System Graphs in InfoSWMM and H2OMap SWMMM for SWMM5 Analysis

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One of the many key output graphics you can see both graphs and tables in InfoSWMM and H2OMap SWMM are the system processes.  You can define the processes you want to use in the Run Manager along with these hydrology options for both infiltration: 1. Green Ampt 2. Horton 3. Modified Horton  4. CN  and Runoff Models 1. EPA Runoff 2. CUHP 3. NRSCS Dimensionless UH 4. NRSCS Triangular UH 5. Delmarva UH 6. Clark UH 7. Snyder UH 8. Espey UH 9. San Diego Modified Rational Method 10.  Modified Rational Method 11. Santa Barbara UH You can see the process flows in the System Output Graphs and Reports. System Process tables System Process Graphs and Run Manger for Process Flow Selection

InfoSWMM 2D Infiltration Surfaces for Horton, Fixed and Constant 2D Mesh

InfoSWMM 2D Infiltration Surfaces for Horton, Fixed and Constand 2D Mesh Infiltration   from Robert Dickinson on Vimeo .

Huff Rainfall Distribution SWMM 5 Model

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Huff Rainfall Distribution SWMM 5 Model Download Horton_Huff_Distribution.inp Huff Distribution Model in SWMM 5 [TITLE] Scenario Run : BASE [OPTIONS] FLOW_UNITS LPS INFILTRATION HORTON FLOW_ROUTING DYNWAVE START_DATE 01/01/2020 START_TIME 00:00:00 REPORT_START_DATE 01/01/2020 REPORT_START_TIME 00:00:00 END_DATE 01/02/2020 END_TIME 12:00:00 SWEEP_START 01/01 SWEEP_END 12/31 DRY_DAYS 5.000000 REPORT_STEP 00:01:00 WET_STEP 01:15:00 DRY_STEP 01:15:00 ROUTING_STEP 0:01:00 ALLOW_PONDING NO INERTIAL_DAMPING NONE VARIABLE_STEP 0.75 LENGTHENING_STEP 0 MIN_SURFAREA 0 NORMAL_FLOW_LIMITED BOTH SKIP_STEADY_STATE NO FORCE_MAIN_EQUATION H-W LINK_OFFSETS DEPTH MIN_SLOPE 0 [EVAPORATION] ;;Type Parameters ;;---------- ---------- CONSTANT 0.000000 DRY_ONLY NO [RAINGAGES] ;; Ra...

EPA SWMM Build 5.1.007 (9/15/2014) with New Feature Images

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SWMM 5.1 Update History ======================= Build 5.1.007 (9/15/2014) Engine Updates, more information and code shown on the EPA Website : 1.   A new feature that provides monthly adjustments for      temperature, evaporation rate, and rainfall was added. 2.   Support for reading the new GHCN-Daily climate data      files available from NCDC's Climate Data Online service      was added. 3.   In addition to lateral groundwater flow, a custom      equation can now also be used for seepage flow to      a deeper groundwater aquifer. 4.   The [GW_FLOW] section of the project file was renamed      to [GWF] and its format was changed to accommodate      both lateral and deep groundwater flow equations. 5.   A new Weir parameter was added that specifies if the      weir can surcharge ...

SWMM 5.1 Update History Or Key Changes

SWMM 5.1 Update History http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/#Downloads Build 5.1.002 ----------------------- Engine Updates: 1. A bug that prevented hotstart files with the latest format from being read was fixed. 2. Only non-ponded surface area is saved for use in the dynamic wave surcharge algorithm (when water depth is close to the node's crown elevation). GUI Updates: 1. Creation of auxilary forms on startup was moved from the main form's OnActivate event to its OnCreate event, while creation of the map form was moved tothe OnShow event. 2. The routines for saving and reading the main form's position and size in the swmm5 .ini file were modified. 3. A memory leak related to copying cells from the grid editor used in various dialogs was fixed. ----------------------- Build 5.1.001 ----------------------- Engine Updates New Features: ============= 1.  SWMM can now read the new file format for precipitation     data retrieved on...