Environment & Water
Hydrology & Stormwater Simulators
A focused Environment & Water hub for hydrology & stormwater tools, keeping related formulas, assumptions, and engineering checks together.
9 simulators
Adjacent categories
Simulator list
Bioretention Cell Stormwater Design Simulator
Hydrology & Stormwater
Size a bioretention cell — also known as a rain garden — in real time.
Glacier Mass Balance & ELA Simulator
Hydrology & Stormwater
A health check for mountain glaciers and ice caps. Enter the glacier area, equilibrium-line altitude (ELA), accumulation and ablation rates, and a temperature anomaly ΔT…
SCS Curve Number Rainfall-Runoff Simulator
Hydrology & Stormwater
Use the USDA NRCS SCS-CN (Curve Number) method to estimate a basin's direct runoff depth, runoff coefficient and peak flow from 24-hour rainfall depth.
Rainwater Harvesting Simulator
Hydrology & Stormwater
Design a system that collects rain off a roof, stores it and uses it for toilet flushing and garden irrigation. Adjust the catchment area, annual rainfall and tank volum…
Snow Avalanche α-β Runout Distance Simulator
Hydrology & Stormwater
Use the Lied-Bakkehøi (1980) statistical regression α = 0.96β − 1.4° to predict the farthest reach (α point), peak velocity and impact pressure of a snow avalanche from …
Snowmelt Degree-Day Method Simulator
Hydrology & Stormwater
Estimate daily snowmelt, basin meltwater discharge and snow water equivalent (SWE) depletion in a mountain catchment using the classic degree-day method. Vary the basin …
Stormwater Runoff (Rational Method) Simulator
Hydrology & Stormwater
Find out how much peak flow the rain falling on a small catchment delivers to a storm drain, using the Rational Method.
Stream Restoration & Bankfull Discharge Simulator
Hydrology & Stormwater
A planning tool for restoring engineered, straightened streams back to their natural form. Adjust drainage area, channel width, depth, slope, sediment size and Manning's…
Tsunami Run-up Height Prediction Simulator
Hydrology & Stormwater
Vary the moment magnitude Mw, epicenter distance, offshore wave height, coastal slope, shoreline geometry and vegetation cover to see the tsunami run-up height R, inunda…