PSL Web Products and Tools: Model Projects

PSL has created a set of web products and tools that we have found useful in our research. The following are sites with useful web links for selected topics.

Models

20th Century Reanalysis
Using a state-of-the-art data assimilation system and surface pressure observations, the NOAA-CIRES-DOE Twentieth Century Reanalysis (20CR) project has generated a four-dimensional global atmospheric dataset of weather spanning 1836 to 2015 to place current atmospheric circulation patterns into a historical perspective.
Replay
The NOAA Unified Forecast System (UFS) / Global Ensemble Forecast System version 13 (GEFSv13) replay data set was developed to provide initial conditions for the retrospective forecast archive in support of the next implementation of the NOAA medium range forecast system (GEFSv13 / GFSv17).