Lead Story: Advances in the Rapid-Refresh Forecast System as Seen in NOAA’s Hazardous Weather Testbed’s Spring Forecasting Experiment

Summer 2022 | The Rapid Refresh Forecast System (RRFS) is a critical component of NOAA’s Unified Forecasting System (UFS) initiative which has been in development for several years and is planned for operational implementation in late 2024. The RRFS will provide the NWS an hourly updating, high-resolution ensemble capability that uses a state-of-the-art, convective-scale ensemble data assimilation and forecasting system with the Finite-Volume Cubed Sphere Dynamical core (FV3). Further, the RRFS will… Read More

Director's Corner: The era of funky grids, influence of interpolation, and the importance of community verification codes

Marion Mittermaier

Summer 2022 | Model intercomparison has always come with challenges, not least of all, the decisions such as which domain and grid to compare them on and the observations to compare them against. The latter also involves the often “hidden” decision about which interpolation to use. We interpolate our data almost without thinking about it and forget just how influential that decision might be. Let’s also add the software into the mix, because, in reality we need to. In 2019 the UK Met Office made the decision to adopt METplus as the… Read More

Who's Who: Will Mayfield

Summer 2022 | Will Mayfield began working with the DTC as a co-lead on the Data Assimilation (DA) team. His project focused on the Gridpoint Statistical Interpolation (GSI) software. However, he recently transitioned into a co-lead for two projects: the Unified Forecast System (UFS) Short Range Weather (SRW) App support as well as Ensembles Testing and Evaluation. Successfully executing these roles demands a balance of software support, investigative science work, and project management. He has also collaborated on a variety of other… Read More

Bridges to Operations: Creation of an Agile RRFS Prototype Testing Framework to Inform and Accelerate Operational Implementation

Summer 2022 | Within the effort to unify the NCEP operational model suite, taking place under the Unified Forecast System (UFS) umbrella, a key area of interest is the evolution of legacy operational, convective-allowing systems to a new, unified Finite-Volume Cubed-Sphere (FV3)-based deterministic and ensemble storm-scale system called the Rapid Refresh Forecast System (RRFS). The ongoing transition from the existing NOAA NWP systems to the UFS is a major multi-year undertaking, with the RRFS targeted for initial operational… Read More

Visitors: Development of GSI Multiscale ENKF Data Assimilation for Convection-Allowing FV3 Limited Area Model

Visitor: Chong-Chi Tong

Summer 2022 | Accurately predicting weather down to the convective storm scales requires setting initial model conditions that accurately represent the atmospheric state at all scales (from the planetary through synoptic large-scale, mesoscale, to convective). The importance of these various interactions can not be overlooked.  A well-performing data assimilation (DA) system must accurately analyze flow features at all scales. For this visitor project, a multi-scale DA capability within the GSI-… Read More

Community Connections: International Community Participates in First METplus Users’ Workshop

Summer 2022 | The first DTC METplus Users Workshop was held virtually June 27th through June 29th, 2022 covering a multitude of topics and application areas. METplus became an operational software tool for NOAA NCEP Central Operations in 2021 and provides a framework for all components needed to provide ease-of-use and diagnostic capability to the Model Evaluation Tools (MET) package first released by the DTC in 2008, which originally began through and continues to benefit from the generous support of the Air Force. The last MET… Read More

Did you know?: The METexpress Visualization Suite

Summer 2022 | A major advancement of the Unified Forecast System Research-to-Operations (UFS-R2O) project has been the implementation of the DTC’s advanced Model Evaluation Tools (METplus) as a unified verification system for community model-development efforts. A community verification tool is important for this sort of decentralized development endeavor, as it gives all participants a common framework for evidence-based decision making when transitioning these models to operations. METplus processes numerical weather prediction… Read More

Software Release: CCPP and CCPP SCM v6.0.0 release announcement

2022-06-29 | The Developmental Testbed Center (DTC) is pleased to announce the Common Community Physics Package (CCPP) v6.0.0 public release on June 29,2022. This release contains the CCPP Physics, a library of physical parameterizations, the CCPP Framework, an infrastructure that connects the physics to host models, and the CCPP Single Column Model (SCM), a simple host model that employs the CCPP Physics and CCPP… Read More

Software Release: UPP V11.0.0 Release

2022-06-15 | This release represents a major effort to refactor the UPP code to implement a 2-Dimensional decomposition capability.  This development was led by UPP developers at NOAA’s Environmental Modeling Center (EMC) with funding through the Hurricane Supplemental funding line.  Please see the Users Guide in links below for details on how to use this capability.   Release Highlights: Capability added to decompose grids in both x- and y-directions. 1D (y-direction only) decomposition is still available. Identical results… Read More

Lead Story: The Local Land-Atmosphere Coupling (LoCo) Project

Building Tools and Knowledge to Facilitate R2O and Improved Weather and Climate Prediction

Spring 2022 |   Over the last two decades, the hydrometeorological community has made significant progress identifying, understanding, and quantifying the land-atmosphere (L-A) interactions that influence Earth’s water and energy cycles. Under the Global Energy and Water Exchanges (GEWEX; https://www.gewex.org) project,… Read More

Director's Corner: The NOAA Testbeds and Proving Grounds: A coordinated effort to transition research to operations, services and applications

Andrea Ray and J.J. Brost

Spring 2022 | The Test Bed and Proving Ground Coordination Committee (TBPGCC, www.testbeds.noaa.gov) is composed of representatives from the 12 NOAA Testbeds (TBs) and Proving Grounds (PGs), including a member from the DTC.

Who's Who: Randy Pierce

Spring 2022 | Randy Pierce is a NOAA partner whose software engineering talent supports METexpress. His software engineering role was inspired by his love of detail, building things, and an early curiosity about engineering. From the beginning, he always had a passion for understanding how things work. He earned a dual bachelor's degree in physics and electrical engineering technology from Colorado State University Pueblo… Read More

Bridges to Operations: Physics Assessments in Support of the Upcoming GFS and GEFS 2024 Implementations

Spring 2022 | The next operational implementations of the Global Forecast System (GFS) and Global Ensemble Forecast System (GEFS) are not scheduled until 2024, but work is underway to code and test a number of upgrades to these modeling systems. While innovations are planned in all aspects of the end-to-end system, the DTC has been particularly involved in supporting the development and improvement of the physics suite as a member of the Unified Forecast System (UFS) Research-to-Operations (R2O)… Read More

Visitors: From Innovations to Operations, the DTC Visitor Program Stimulates Progress

Visitor Program: An Overview

Spring 2022 | Since 2004, one of the hallmarks of the Developmental Testbed Center (DTC) has been its visitor program. The DTC Visitor Program provides an opportunity for DTC staff and our operational partners to strengthen ties with the research community, which is critical to the success of the DTC’s mission. It began informally when four scientists were invited to work with us for one month over the summer on a project of their choice. The only stipulation was that it had to be consistent with… Read More

Community Connections: The GeneralIzed Aerosol/chemistry iNTerface (GIANT)

Workshop and Hackathon

Spring 2022 | An Earth System Model (ESM) is a model that represents various domains of the earth, such as atmosphere, ocean, sea ice, etc. A new community effort is underway to devise a method to transfer information easily and consistently between chemistry and aerosol modules, and other components of ESMs. Currently, it is difficult to study and quantify feedbacks of chemistry/aerosol parameterizations on weather and climate because of the structurally diverse ways in which chemistry/aerosols… Read More