Hydrograph & Muskingum Routing

Routing Parameters

Enter Muskingum K, X, time step, and initial outflow.

K Value Unit: hours

X Value Usually 0.00 to 0.50

Time Step ^tt Unit: hours

Time Step Δt Unit: hours

Initial Outflow O₀ Unit: m³/s

Use Lateral Inflows?

Run Notes

Stability check will appear here after computation.

C0 -

C1 -

C2 -

Muskingum formula used:
O ^b^b = C0 I ^b^b + C1 I ^b^a + C2 O ^b^a

Stability condition:
2KX ^i ^tt ^i 2K(1 ^h^r X)

Muskingum formula used:
O₂ = C0 I₂ + C1 I₁ + C2 O₁

Stability condition:
2KX ≤ Δt ≤ 2K(1 − X)

Enter upstream inflow and optional lateral inflows. The total inflow is routed downstream.

Step	Time	Upstream Inflow I	Lateral Flow 1	Lateral Flow 2	Observed Outflow, optional	Action

Units are assumed to be hours and m³/s for the current routing workflow.

Peak flow reduction, lag time, and volume indicators will appear after computation.

Peak Total Inflow -

Peak Routed Outflow -

Peak Reduction -

Lag Time -

Total inflow and routed outflow are plotted after computation.

Compute routing to display the hydrograph chart.

Total Inflow Routed Outflow Observed Outflow, optional

The computed Muskingum routing table appears here.

Open Results Page

Step	Time	Upstream Inflow	Lateral Total	Total Inflow	Routed Outflow	Observed Outflow
No routing result yet.