The High-Resolution Rapid Refresh (HRRR): An Hourly Updating Convection-Allowing Forecast Model. Part I: Motivation and System Description
NOAA Global Systems Laboratory · NOAA Earth System Research Laboratory · +6 more institutions
Abstract
Abstract The High-Resolution Rapid Refresh (HRRR) is a convection-allowing implementation of the Advanced Research version of the Weather Research and Forecasting (WRF-ARW) Model with hourly data assimilation that covers the conterminous United States and Alaska and runs in real time at the NOAA/National Centers for Environmental Prediction (NCEP). Implemented operationally at NOAA/NCEP in 2014, the HRRR features 3-km horizontal grid spacing and frequent forecasts (hourly for CONUS and 3-hourly for Alaska). HRRR initialization is designed for optimal short-range forecast skill with a particular focus on the evolution of precipitating systems. Key components of the initialization are radar-reflectivity data…
Citation impact
- FWCI
- 45.97
- Percentile
- 100%
- References
- 116
Authors
17- DCDavid C. DowellCorresponding
NOAA Global Systems Laboratory, NOAA Earth System Research Laboratory
- CRCurtis R. Alexander
NOAA Global Systems Laboratory, NOAA Earth System Research Laboratory
- EJEric James
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, NOAA Global Systems Laboratory, NOAA Earth System Research Laboratory
- SSStephen S. Weygandt
NOAA Global Systems Laboratory, NOAA Earth System Research Laboratory
- SGStanley G. Benjamin
NOAA Global Systems Laboratory, NOAA Earth System Research Laboratory
Topics & keywords
- Data assimilation
- Initialization
- Meteorology
- Weather Research and Forecasting Model
- Numerical weather prediction
- Global Forecast System
- Environmental science
- Computer science
- Climate action