Model information (Last updated: January 31, 2020)

The Model for Prediction Across Scales (MPAS v7.0) is used in the real-time numerical weather predictions over the Antarctica. The model consists with variable-resolution meshes (90-25 km) with a single refinement region that is centered on -90.0 latitude, 0.0 longitude. The model outputs were interpolated into 385x385 grid points with a horizontal resolution 20 km for visulational purpose.

The Antarctic MPAS runs contain the following parameterization schemes:

• config_physics_suite = 'mesoscale_reference'
• config_microp_scheme = 'mp_wsm6'
• config_convection_scheme = 'cu_kain_fritsch'
• config_lsm_scheme = 'noah'
• config_pbl_scheme = 'bl_ysu'
• config_gwdo_scheme = 'bl_ysu_gwdo'
• config_radt_cld_scheme = 'cld_incidence'
• config_radt_lw_scheme = 'rrtmg_lw'
• config_radt_sw_scheme = 'rrtmg_sw'
• config_sfclayer_scheme = 'sf_monin_obukhov'

The model starts at 0000 UTC as its initial times every day and produces a 72-hour prediction for the Antarctica. The initial and boundary conditions are interpolated from the daily 0000 UTC run of the Global Forecast System (GFS) issued by the National Centers for Environmental Prediction (NCEP).

Model output information

The following real-time model outputs are placed on the website:

• Spatial Plots:

• Near surface: 2m temperature, 10m wind and sea level pressure
• 850 hPa temperature, wind and height
• 700 hPa temperature, wind and height
• 500 hPa temperature, wind and height
• 6 hour total precipitation
• 1000 to 500 hPa thickness and sea level pressure
• 700 hPa relative humidity, wind and height
• 500 hPa absoultely vorticity, wind and height
• 300 hPa isotachs, wind and height

• Skew-T/Log-P Diagrams: at selected stations

• Time Series Plots: at selected stations

Any comments or questions about the real-time numerical weather prediction. Please mail to bromwich.1@osu.edu.