This program creates rainfall intensity - duration - frequency curves, also known as IDF curves. The equation of the IDF curves is i=kTa/(t+b)m. The user can either utilize unprocessed data from one or more rain gages or processed time series given as maximum annual rainfall heights per rainfall duration.
Features
- Calculates all coefficients of the generic rainfall intensity - duration - frequency equation.
- Can read raw rainfall data from one or more raingages.
- Can use manimum annual rainfall heights instead of raw data.
- To estimate the coefficients the following distributions can be used:
- Empirical probability of exceedance is calculated using:
- Weibull
- Gringorten
- Cunnane
- Blom
- Hazen.
- It is possible to use a pre-defined constant b coefficient.
- Import / export data from / to Microsoft Excel or other spreadsheets.
- A correction factor for areal precipitation may be used when the rational method is applied.
- The concentration time can be estimated using the well known formulas of Izzard, California Culverts Practice and Kinematic wave.
- Formatted output to Microsoft Word for professional printouts with minimal user intervention.
- Theoretical background has been added in the documentation.
- Multilevel undo and redo.
- Professional reports and printouts in Microsoft Word or directly to the printer.
- Tip of the day.
- Full user guide.
- Tutorials.
- Live Update.
- English and Greek interface.