The Global Systems Laboratory's mission, simply put, is to make forecasts better through developing continuous global to storm scale situational awareness capabilities, creating a fully coupled earth system modeling prediction tool, and providing outreach, accessible information and decision support tools. GSL's five research branches include: Advanced Technologies Branch (ATB), the Assimilation Development Branch (ADB), the Evaluation and Decision Support (EDS), the Model Development Branch (MDB), and Information and Technology Services (ITS). Prior to 2020 GSL was a division under ESRL. Please note that tech memos and other documents will be listed as GSD.
The Forecast Systems Laboratory, GSD's predecessor agency, was current from 1989 to 2005. FSL was preceded by the Prototype Regional Observing and Forecasting Service Program (PROFS) (1979-1989). These organizations were involved with testing and technology transfer of many tools and techniques applied by the National Weather Service, such as the Advanced Weather Interactive Processing System (AWIPS).