Testing + Evaluation Products

METplus is a verification framework that spans a wide range of temporal (warn-on-forecast to climate) and spatial (storm to global) scales.  It is intended to be extensible through additional... more

Model Evaluation Tools (METplus)
What is R?Introduction to R

R is a language and environment for statistical computing and graphics. It is a GNU project which is similar to the S language and environment which was developed at... more

R software packages

Software for implementing extreme value theory:

R    S/S-PlusOthersXtremes (Version 3.1)Stable DistributionsEVIM -- Extreme Value Analysis in MATLABEXTREMESGLSnet and peakFQ
Software For Extreme Value Analysis (EVA)
WRF Model Output

The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale numerical weather prediction system designed to serve both atmospheric research and operational... more

WRF model output showing simulated radar reflectivity (dBZ) for Typhoon Mawar at 3.3-km (2.1-mi) grid spacing. Time period is from 0000 UTC 22 August 2005 to 0000 UTC 24 August 2005.

Although there has been a substantial, long-term effort by the weather research community to improve precipitation prediction, little attention has been paid to the prediction of clouds and... more

Distributed Solar Energy Prediction

Improved weather prediction and precise spatial analysis of small-scale weather events are crucial for energy management, as is the need to further develop and implement advanced... more

Load Prediction System

The community GSI system is a variational data assimilation system, designed to be flexible, state-of-art, and run efficiently on various parallel computing platforms. The GSI system is in the... more

Gridpoint Statistical Interpolation (GSI)

The Weather Research and Forecasting (WRF) Model is designed to serve both operational forecasting and atmospheric research needs. It features two dynamic cores, multiple physical... more

WRF For Hurricanes

The community EnKF system is a Monte-Carlo algorithm for data assimilation that uses an ensemble of short-term forecasts to estimate the background-error covariance in the Kalman Filter. It is... more

Ensemble Kalman Filter System (EnKF)

The Unified Post Processing System (UPP) was deleveloped at the National Centers for Environmental Prediction (NCEP) and is used operationally for models maintained by NCEP. The NCEP Unified Post... more

Unified Post Processor (UPP)

The Climate Risk Management engine (CRMe) is an extensible, efficient NCL-based code set (with capability to integrate R packages) used to process and analyze large climate data sets (daily or... more

CRMe Viewer

The Common Community Physics Package (CCPP) is designed to facilitate the implementation of physics innovations in state-of-the-art atmospheric models, the use of various models to develop physics... more

Depiction of the concept of a Common Community Physics Package Ecosystem. Although an officially-supported version of the CCPP exists (within bold-outlined oval), the software infrastructure allows for use (largest oval) and development (second-largest oval) from within the broader community. The operational physics suite can be drawn from the supported CCPP
Simplifying end-to-end numerical modeling using software containers

Software systems require substantial set-up to get all the necessary code, including external libraries, compiled on a specific... more

End-to-End NWP Containers

The aims of this project are: (a) to foster increased development of forecast aids for global basins by engaging the wider community of operational centers, academic researchers, and commercial... more

Tropical Cyclone Guidance Project (TCGP)

This project is funded by the Risk Prediction Initiative (RPI2.0) to develop a new historical database of tropical cyclone wind and size parameters. Unlike other historical databases, such as the... more

Tropical Cyclone Data Project (TCDP)