More on Numerical ModelingOperational Models Encyclopedia
The Operational Models Encyclopedia describes the characteristics and architecture of many commonly used operational NWP models in the US, Canada, and Europe.WRF Model Training
COMET offers a variety of training to help forecasters better understand the NAM WRF model and its use.
- For training on using the WRF in the forecast process, visit Using the WRF Mesoscale Model. This module explores two southwest Asia case studies involving AFWA implementation of WRF to see how WRF can improve forecasting for fronts, topographic impacts, precipitation type, and hazards to aviation.
- The NCEP NAM WRF Model Webcast explains the nuts and bolts of the WRF numerics, physics, and postprocessed data. The Webcasts emphasize both what is different and what remains the same between the NAM WRF and its predecessor, the NAM Eta. For a quick dose of the basics, see the 40-minute Short Version. The 65-minute Full Version examines the differences in detail.
- If you have questions about NAM WRF or any other model or wish to share your experiences with others, explore the NWP Discussion Forum.
Ensemble models – which collect information from multiple models or model runs into one product to improve forecasters’ accuracy – have been assembled by COMET into a one-stop Ensemble Model Matrix. Check it out to get a feel for the variety of ensemble models and how they operate. For more information on ensembles, seeEnsemble Forecasting Explained and/or the Introduction to Ensemble Prediction Webcast.Marine Models
Explore the Marine Wave Models Matrix to see how different models forecast the generation, propagation, and dissipation of ocean waves.COMET Outreach Project
The University of Washington, Texas Tech University, and the Seattle NWS Forecast Office participated in a joint research project to compare two high-resolution surface analysis methods currently in place to a new ensemble-based technique. The results of the project are available here.
The goal of another COMET Outreach project was to identify and understand displacement biases in numerical forecasts of elevated convective systems located between the Rocky Mountains and the Appalachian Mountains. To learn more, see the final report for this collaboration between Texas A&M and the NWS Hydrometeorological Prediction Center.
Florida State University and the Tallahassee WFO worked on a project to produce scientifically useful measures of uncertainty/confidence for forecast fields, including temperature, wind, and vorticity. The purpose was to allow forecasters to focus on those forecast periods when the model guidance was in less agreement. The experimental forecast confidence measures for the GFS ensemble are available from the project website, and the final report contains more details.
About Our Training Resources
Our training consists of lessons and courses. A lesson is targeted toward one focused subject, whereas a course is a collection of lessons that pertain to a broader subject area. You can receive certificates of completion for both lessons and courses. Courses are entirely self-paced and available for open enrollment. We also list a select set of resources that are not hosted on MetEd that are of high quality and of interest to our community.
The COMET® Program's virtual classroom provides access to material in support of our residence and virtual courses. These courses are generally available by invitation only and are hosted at our UCAR facility in beautiful Boulder, Colorado.