Agriculture & Environmental
Flood Recurrence Interval
P = 1 / T
The annual chance of a flood being equalled or exceeded is the reciprocal of its return period — a so-called hundred-year flood carries just a one-percent probability in any single year.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).