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IDF Curve

The following explanation is source from:


An Intensity-Duration-Frequency curve (IDF Curve)  is a graphical representation of the probability that a given average rainfall intensity will occur.


Rainfall Intensity (mm/hr), Rainfall Duration (how many hours it rained at that intensity) and Rainfall Frequency/Return Period (how often that rain storm repeats itself) are the parameters that make up the axes of the graph of IDF curve. An IDF curve is created with long term rainfall records collected at a rainfall monitoring station.


Project glossaries that use this term: