Runoff Lab NX

Hydrological study tool: rainfall stations, probabilistic analyses (Gumbel, TCEV), IDF rainfall curves, design hyetographs and flood hydrographs, with AI-assisted data import.

Key Features

Rainfall stations & series — register measurement stations with location and observation period, then load annual maximum rainfall series for any duration.

Probabilistic analyses — Gumbel and TCEV distributions with maximum-likelihood and method-of-moments fitting; goodness-of-fit tests and confidence intervals on quantiles.

IDF rainfall curves — derive intensity-duration-frequency curves from probabilistic analyses for any return period, with regionalization support (VAPI).

Hyetographs & hydrographs — design rainfall hyetographs (Chicago, alternating blocks, constant) and flood hydrographs from synthetic or measured rainfall, with infiltration loss models.

AI-assisted import — paste Excel tables or upload PDFs of rainfall data: the AI extracts and structures stations and series automatically. PDF and Word reports out of the box.

Target Users

Hydrologists, civil and environmental engineers, and consultants designing hydraulic structures, drainage systems and flood-risk studies that need defensible IDF curves and design hydrographs.

Ready to start with Runoff Lab NX?

Choose your plan and start using Runoff Lab NX today. Runs in the browser, always up to date, no installation required.