Community Event
First OpenGHM Workshop Announcement!
We are excited to announce the first OpenGHM training online workshop, coming February 2027!
View workshopThe Challenge
Bridging the Gap in Water Science
OpenGHM removes technical barriers to storing, accessing, and running the data and code that enables large-scale hydrologic modeling. We provide a unified, cloud-native platform that integrates data, compute, and visualization.
Read our Mission Statement
Core Capabilities
A Comprehensive Platform for Hydrology
Everything you need to conduct state-of-the-art water research in one place, powered by NSF Anvil Cyberinfrastructure.
The Gateway
User-friendly web portal connecting directly to NSF Anvil supercomputer without command-line complexity.
Data Repository
Browse and download GHM-ready model inputs (NetCDF format) and published snapshots, stored on NSF Anvil object storage.
Community Model
Run containerized, reproducible hydrologic models as batch jobs on NSF Anvil.
The ToolkitComing soon
Powerful Python APIs for data processing, spatial resampling, and interactive visualization notebooks.
What's New
Latest Snapshots & News
New snapshot
WBM v1.0.0 Wyoming water-tracking simulation, 2000–2009
A WBM regional simulation over the Wyoming basin for 2022 model documentation paper.
Access DataNew snapshot
WBM v1.0.0 Global water-tracking simulation, 2000–2009
A WBM global simulation for 2022 model documentation paper.
Access DataWho is it for?
Empowering the Research Community
Interdisciplinary Researchers
Bridging hydrology with economics and policy making to solve complex global water challenges.
Power Users & Scientists
Executing large-scale ensemble simulations with massive compute resources on NSF Anvil.
Educators & Students
Lowering the barrier to entry for learning global hydrology through interactive, browser-based tools.
Ready to Accelerate Your Research?
Find published snapshots and model inputs, and run hydrologic models on NSF Anvil from your browser. Get started today.