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RAPID

Routing Application for Programmed Integration of Discharge

Advanced river network modeling software for estimating water flow across thousands of river reaches. Efficient matrix-based computations. Adaptable to any dentritic river network with basic connectivity information.

Quick Start User Guide


Why Choose RAPID?

🆓 Free and Open Source

RAPID follows best practices for rigorous open science with transparent methodology, reproducible results, open datasets, and open-source code. Our code is available under a BSD 3-clause license, making it free for academic and commercial use.

🔬 Backed by Peer-Reviewed Publications

Built using scientific methods published in international peer-reviewed journals.

📅 Proven Track Record

Reliability and sustained innovation demonstrated by years of continuous development and applications since the birth of RAPID on 26 January 2006.

👥 Trusted by the Global Community

  • Researchers: Used or cited in 150+ published scientific papers
  • Organizations: Used by leading research institutions and operational centers worldwide

User Highlights

RAPID is used by leading research institutions and scientific organizations worldwide.

NASA Logo CNES logo (blue)

A 35-year historical simulation produced with RAPID is used to provide a first guess for discharge estimates by the international Surface Water and Ocean Topography (SWOT) mission that is jointly developed by NASA and CNES. Read more in the simulation paper and the SWOT discharge paper.

ECMWF Logo

A 40-year historical simulation and its associated 15-day ensemble forecast for every river in the world produced with RAPID support the ECMWF GEOGLOWS Streamflow system. Read more in the research paper or on the GEOGLOWS ECMWF Streamflow website.

USACE Logo

RAPID is used for global hydrologic intelligence. Read more in the research paper or in the USACE news story.


More

More information is available! You're invited to browse through this website for access to comprehensive documentation, training materials, and connect with the RAPID community for support and collaboration.