• Source: Rapid Refresh (weather prediction)

The Rapid Refresh (RR or RAP) is a numerical weather prediction (NWP) model. The model is designed to provide short-range hourly weather forecasts for North America. The Rapid Refresh was officially made operational on 1 May 2012, replacing the Rapid Update Cycle (RUC). The model also serves as the boundary conditions for the higher-resolution High Resolution Rapid Refresh (HRRR) model, that uses a 3 km (1.9 mi) grid spacing on a domain covering the continental United States.
The Rapid Refresh is run at the NOAA National Centers for Environmental Prediction (NCEP). It is based on the framework of the Weather Research and Forecasting model (WRF); the Global Forecast System (GFS) provides the boundary parameters. The grid points are spaced every 13 kilometres (8.1 mi), with 50 vertical intervals extending up to the 10-hectopascal (10 mb) level of the atmosphere. The model runs once each hour, with forecasts given hourly out to 18 hours and 48 hours every 6th run.
An experimental version of the Rapid Refresh runs at the Earth System Research Laboratories (ESRL), a NOAA unit that develops models in the research stage prior to operational implementation at NCEP.




See also


North American Mesoscale Model




References






External links


Rapid Refresh website
High Resolution Rapid Refresh website

Kata Kunci Pencarian:

• Rapid Refresh (weather prediction)
• Rapid Update Cycle
• RR
• RAP
• Global Forecast System
• Weather Research and Forecasting Model
• History of numerical weather prediction
• Environmental Modeling Center
• Advanced Technology Demonstrator
• Citizen Weather Observer Program