[Science_Parameters: Science_Category='EARTH SCIENCE', Science_Topic='ATMOSPHERE', Science_Term='WEATHER EVENTS']
Polar Weather Research and Forecasting Model (WRF)Entry ID: Polar_WRF
Abstract: Based on extensive experience with mesoscale modeling in the polar regions by the Polar Meteorology Group of the Byrd Polar Research Center at The Ohio State University, the Weather Research and Forecasting model (WRF) has been modified for use in the Polar Regions (referred to as the Polar WRF). A development approach is adopted similar to that used previously to implement the Polar version of ... the PSU/NCAR fifth generation mesoscale model (Polar MM5). The key modifications for Polar WRF are:
- Optimal surface energy blance and heat transfer for the Noah LSM over sea ice and permanent ice surfaces
- Implementation of a ivariable sea ice thickness and snow thickness over sea ice for the Noah LSM
- Implementation of seasonally-varing sea ice albedo in th Noah LSM
Testing of Polar WRF over Arctic and Antarctic surfaces provides guidance on best choice of physics options. See the publications for guidance.
Model evaluations through Polar WRF simulations over Greenland and the Arctic Ocean (SHEBA site) have been performed, and the results are described in the articles provided in the "Related URL" Link. Development studies have been performed for Arctic land (ARM sites in Alaska), and Antarctica.
Polar WRF is used by forecasters as part of the National Science Foundation sponsored Antarctic Mesoscale Prediction System (AMPS) to meet the operational and logistic needs of the United States Antarctic Program (USAP). Under a collaborative project with the Polar Meteorology Group, AMPS simulations are performed at the National Center for Atmospheric Research twice per day (00Z and 12Z initializations), and cover progressively finer domains ranging from 45-km (covering most of the Southern Hemisphere) to 1.7-km (covering the region immediately surrounding McMurdo Station, the base of USAP operations). A 45-km resolution version of the Polar WRF is run at the Byrd Polar Research Center twice per day as a backup to AMPS, and will be upgraded shortly to higher resolution and enhanced polar physics.
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Role: TECHNICAL CONTACT
Email: bromwich.1 at osu.edu
Email: bromwich at polarmet1.mps.ohio-state.edu
Polar Meteorology Group Byrd Polar Research Center The Ohio State University 1090 Carmack Road
Province or State: OH
Postal Code: 43210
Role: SERF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov
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