The Advanced Regional Prediction (ARPS) is a comprehensive regional to stormscale atmospheric modeling / prediction system. It is a complete system that includes a realtime data analysis and assimilation system, the forward prediction model and a post-analysis package.
The ARPS was initially developed at the Center for Analysis and Prediction of Storms (CAPS) at the University of Oklahoma, under the support of the National Science Foundation Science and Technology Center (STC) program. CAPS will continue to improve and support the use of ARPS.
The original goal of ARPS was for it to serve as a prototype system for storm scale numerical weather prediction. Developing such a system was also the primary mission of CAPS. ARPS is also suitable for a wide range of idealized studies.