Generate rainfall curves from depth-duration data available from NOAA

You can generate tables and curves

• DDF coefficients by curve fitting
• DDF curves
• IDF curves
• Hyetographs

Advanced user

If data is not already available ..

NOAA

Select file or paste
Load

file

Select Location
ocean side plant sf downtown SFO

Select file or paste
Load

Rainfall

coefficients for depth-duration-frequency yr, a0, a1

Time Step
1 minute 2 minutes 5 minutes 6 minutes 10 minutes 15 minutes 30 minutes 60 minutes

Duration 1 hour 90 minutes 3 hours 6 hours 12 hours 24 hours

Advancement 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Decimals 0. 0.0 0.00 0.000 0.000 0 0.000 00 0.000 000

Chart 1

Chart 2

Chart 3