Examples
Examples
Try the starting example
- Excess rainfall blocks (mm)
- 5,10,3
- Unit hydrograph ordinates (m³/s per mm)
- 0,1,2,1,0
- Convolved direct-runoff ordinates (m³/s) JSON
- [0,5,20,28,16,3,0]
- Peak direct-runoff discharge (m³/s)
- 28
Try another scenario
- Excess rainfall blocks (mm)
- [6, 10, 3]
- Unit hydrograph ordinates (m³/s per mm)
- [0, 1, 2, 1, 0]
- Convolved direct-runoff ordinates (m³/s) JSON
- [0,6,22,29,16,3,0]
- Peak direct-runoff discharge (m³/s)
- 29
Calculation method
Calculation method
Convolved direct-runoff ordinates (m³/s) JSON
Discrete convolution with unit hydrograph expressed per 1 mm excess rainfall and matching rainfall-block duration.
Peak direct-runoff discharge (m³/s)
Discrete convolution with unit hydrograph expressed per 1 mm excess rainfall and matching rainfall-block duration.
Symbols and units
- a
- Excess rainfall blocks (mm)
- b
- Unit hydrograph ordinates (m³/s per mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Discrete convolution with unit hydrograph expressed per 1 mm excess rainfall and matching rainfall-block duration. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.