As one of the theory-based infiltration methods, Green-Ampt method is widely used in hydrologic modeling to account for loss from infiltration. Green-Ampt method was initially developed for ponded infiltration into…
As one of the theory-based infiltration methods, Green-Ampt method is widely used in hydrologic modeling to account for loss from infiltration. Green-Ampt method was initially developed for ponded infiltration into…
In HEC-RAS 2D Rain-on-Grid (ROG) modeling, three layers are needed to model the infiltration loss and the procedures to create the three layers have been discussed before. Land Cover Layer…
In addition to loss through infiltration, during a precipitation-runoff process other losses may need to be accounted for which include canopy interception, surface depression storage or initial loss, and evapotranspiration…
The Deficit and Constant Loss Infiltration Method can be implemented in HEC-HMS, HEC-RAS (2D rain-on-grid), and InfoWorks to account for precipitation loss through infiltration and percolation. In order to facilitate…
HydroCAD and XPSWMM have the modified rational method built into the programs and it is very convenient to apply the method in either of the modeling tools. One or more…
For small drainage areas, the rational method is widely used to calculate peak flows of different drainage design levels to size storm sewer, inlets, culverts, and ditches. The rational method…
NOAA Atlas 14 provides the latest official U.S. precipitation frequency, depth and duration data. Visit this post to learn more about how to retrieve and utilize NOAA Atlas 14 data.…
This post is to explain how to set up an HMR 52 storm in HEC-HMS by using HEC-MetVue PMS parameters and how to optimize it by setting a objective goal…
Probable maximum precipitation (PMP) is theoretically the greatest precipitation for a given duration that is physically possible over a given size storm area at a particular geographic location. Probable maximum…
In Python, everything is an object, such as int, float, string, list, tuple, dictionary,... When you assign a value to a variable, you basically create an object with a reference…