About the UFS
The Unified Forecast System (UFS) is a framework for modeling Earth Systems. It is a community based system, where the community is the Weather Enterprise, composed of researchers, developers, and users from NOAA, educational institutions, federal agencies, and the private sector. The UFS supports research and development across the enterprise, inspires application-based research, and accelerates the transition of research innovations to forecasting operations in NOAA’s National Weather Service (NWS).
The UFS contains several essential components for modeling Earth Systems. The foundation of the framework is a library of coupled numerical models that simulate the Earth’s physical processes. The system also includes pre-processing components for a wide variety of observation types and algorithms for assimilating observational data into a form that can be used to initialize either single-member or ensemble prediction systems. In addition, the system provides post-processing tools to generate deterministic and/or probabilistic predictions as well as verification and validation of products.
The UFS also has configurable infrastructure, which can be tailored to optimize performance for specific applications based on common component-coupling tools and workflow software. Examples of current UFS-based operational NWS applications include Medium-Range Weather, Hurricanes, and Air Quality, while several other specific applications are in later stages of development.
Governance Process
The Unified Forecast System (UFS) is by necessity broad in scope, technically involved, and engages many scientists, software engineers, and other people. Community-level governance is necessary for the UFS enterprise to function efficiently and to bridge across a wide range of diverse contributors and collaborators.
UFS governance functions at the interface of NCEP, NOAA laboratories and programs, and the broader research and development community with the goal of providing end-to-end modeling capacity bridging research and operations. Hence, what is being governed is a community-based, unified, coupled modeling system (the UFS) suitable for application in NCEP’s Production Suite.
Community governance of the UFS is primarily accomplished through the UFS Steering Committee (UFS-SC) and a Technical Oversight Board. The UFS-SC aims to create circumstances in which a pipeline of needed capabilities from the research community reaches suitable levels of readiness to be considered for transition to operations. It is supported by twelve technical Working Groups (see Related Information box of this page), which are comprised of subject matter experts from key areas. Among other things, the Working Groups annually update a Strategic Implementation Plan (SIP).
The UFS grew out of efforts in the National Weather Service (NWS) Office of Science and Technology Integration (OSTI) Modeling Program Office to build the Next Generation Global Prediction System (known to insiders as the NGGPS). The NWS coordinates closely with the NOAA’s Office of Oceanic and Atmospheric Research (OAR) Office of Weather and Air Quality/Weather Forecasting (WPO/WX). This forms the evolving basis of governance within NOAA.
Governance Documents
- UFS Strategic Plan 2021-2025, April 6, 2021
- UFS Organization and Governance, April 6, 2021
- Strategic Implementation Plan (SIP), November 29, 2018
- UFS Technical Oversight Board Charter (signed November 29, 2018)
- UFS Steering Committee Charter (signed November 29, 2018)
UFS Teams
The UFS teams and working groups serve a fundamental role in the UFS community. They are a diverse group of subject matter experts who provide input and insight on an ongoing basis. They also developed and maintained the UFS Strategic Implementation Plan (SIP). They collaborate closely with the UFS Steering Committee (a part of the UFS Governance) and
the NOAA Program Offices, which fund and support the UFS. They are dynamic because they evolve, with the UFS as needs change.
- Application Teams
- Medium-Range Weather (MRW)
- Sub-seasonal to Seasonal (S2S)
- Hurricane
- Short-Range Weather/Convection Allowing Model (SRW/CAM)
- Space Weather
- Coastal
- Air Quality
- Cross-Cutting Teams
- Verification and Validation (V&V)
- Systems Architecture and Infrastructure
- Communications and Outreach (C&O)
- Component Working Group Teams
- Aerosols and Atmospheric Composition
- Data Assimilation (DA) and Ensembles
- Dynamics & Nesting
- Land
- Post Processing (PP)
- Physics
- Marine