Weather Research and Forecasting Model: Difference between revisions

Revision as of 00:49, 15 June 2020

Revision as of 17:29, 17 July 2020

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WRF allows researchers to produce simulations reflecting either real data (observations, analyses) or idealized atmospheric conditions. WRF provides operational forecasting a flexible and robust platform, while offering advances in physics, numerics, and data assimilation contributed by the many research community developers. WRF is currently in operational use at NCEP and other forecasting centers internationally. WRF has grown to have a large worldwide community of users (over 30,000 registered users in over 150 countries), and workshops and tutorials are held each year at NCAR. WRF is used extensively for research and real-time forecasting throughout the world.

WRF offers two dynamical solvers for its computation of the atmospheric governing equations, and the variants of the model are known as WRF-ARW (Advanced Research WRF) and WRF-NMM (nonhydrostatic mesoscale model). The Advanced Research WRF (ARW) is supported to the community by the NCAR Mesoscale and Microscale Meteorology Laboratory.<ref>{{Cite web|url=https://www.mmm.ucar.edu/wrf-user-support-contributor-information|title=WRF User Support & Contributor Information &#124; MMM: Mesoscale & Microscale Meteorology Laboratory|website=www.mmm.ucar.edu}}</ref> The WRF-NMM solver variant was based on the Eta model, and later nonhydrostatic mesoscale model, developed at NCEP. The WRF-NMM (NMM) is supported to the community by the Developmental Testbed Center (DTC).

The WRF serves as the basis for the [[Rapid Refresh (weather prediction)|RAP and HRRR models]]: high-resolution operational forecast models run regularly at NCEP.<ref>{{Cite web|url=https://rapidrefresh.noaa.gov/RR.faq.html|title=Rapid Refresh Frequently Asked Questions|website=rapidrefresh.noaa.gov}}</ref><ref>https://dtcenter.org/plots/hwt/model.php</ref>

A version of WRF-NMM tailored for hurricane forecasting, [[Hurricane Weather Research and Forecasting model|HWRF]] (hurricane weather research and forecasting), became operational in 2007.<ref>{{Cite web|url=http://www.noaanews.noaa.gov/stories2007/s2885.htm |publisher=NOAA News Online |title=New Advanced Hurricane Model Aids NOAA Forecasters |date=27 June 2007 |accessdate=27 June 2010 }}</ref>