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WRF-ARW je mezoskalni prognostički atmosferski model. ARW označava Advanced Research WRF, i jezgra je modela WRF koju razvija američki NCAR...
Na MeteoAdriatic siteu, WRF se na ARW jezgri starta dva puta dnevno, na 06z i 18z GFS 0.5° početnim i rubnim podacima. Produkti ovog modela osvježavaju se uz ranim jutarnjim satima (18z run) te u večernjim satima (06z run). Simulacija se vrši na tri domene u dvosmjernom gniježđenju (Europa na 45km rezolucije, jugoistočna Europa na 15km i Hrvatska na 5km horizontalne rezolucije) sa 45 vertikalnih nivoa.
Od veljače 2010. WRF-ARW je u verziji 3.1, sa slijedećom konfiguracijom:
Active Domains Domain 01 Domain 02 Domain 03
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Domain & Run Information
Primary Time Step : 225 Seconds 75 Seconds 25 Seconds
Grid dimentions (NX x NY) : 125 x 85 130 x 85 154 x 109
Vertical Layers (NZ) : 45 45 45
Grid Spacing : 46.32km 15.44km 5.15 km
Top of Model Atmosphere : 50mb 50mb 50mb
Parent Domain : NA Domain 01 Domain 02
Nesting Feedback : Feedback On Feedback On Feedback On
Smoothing Technique : 1-2-1 Smoothing 1-2-1 Smoothing 1-2-1 Smoothing
File Output Information
File Output Freq : 01 Hour 01 Hour 01 Hour
Output File Format : netCDF netCDF netCDF
Adjust Ouput Times : No No No Model Physics
Dynamics : Non-Hydrostatic Non-Hydrostatic Non-Hydrostatic
Cumulus Scheme : Kain-Fritsch Kain-Fritsch Kain-Fritsch
Microphysics Scheme : Ferrier Microphysics Ferrier Microphysics Ferrier Microphysics
PBL Scheme : Yonsei University Yonsei University Yonsei University
Land Surface Scheme : Noah 4-Layer LSM Noah 4-Layer LSM Noah 4-Layer LSM
Number Soil Layers : 4 4 4
Surface Layer Physics : Monin-Obukhov Monin-Obukhov Monin-Obukhov
M-O Heat and Moisture : Surface Fluxes On Surface Fluxes On Surface Fluxes On
M-O Snow-cover Effects : Included Included Included
Long Wave Radiation : RRTMG Scheme RRTMG Scheme RRTMG Scheme
Short Wave Radiation : RRTMG Scheme RRTMG Scheme RRTMG Scheme
ARW Core Model Dynamics
Dynamics : Non-Hydrostatic Non-Hydrostatic Non-Hydrostatic
Gravity Wave Drag : Off Off Off
Time-Integration Scheme : Runge-Kutta 3rd O. Runge-Kutta 3rd O. Runge-Kutta 3rd O. Diffusion Sheme : Simple Diffusion Simple Diffusion Simple Diffusion
6th-order Diffusion : 6th-Order W/O Up-Gr. 6th-Order W/O Up-Gr. 6th-Order W/O Up-Gr. 6th-order Diffusion Rate : 0.12 0.12 0.12
Eddy Coefficient Scheme : 2D 1st Order Closure 2D 1st Order Closure 2D 1st Order Closure
Damping Option : W-Rayleigh W-Rayleigh W-Rayleigh
Damping Depth from Top : 5 Km 5 Km 5 Km
Damping Coefficient : 0.12 0.12 0.12
W Damping : W Damping On W Damping On W Damping On
Horiz Momentum Advection : 5th Order 5th Order 5th Order
Horiz Scalar Advection : 5th Order 5th Order 5th Order
Vert Momentum Advection : 3rd Order 3rd Order 3rd Order
Vert Scalar Advection : 3rd Order 3rd Order 3rd Order
Sound Time Step Ratio : 4 to 1 (Large TS) 4 to 1 (Large TS) 4 to 1 (Large TS)
Moisture Advection Option : Positive-Definite Positive-Definite Positive-Definite
Scalar Advection Option : Positive-Definite Positive-Definite Positive-Definite
TKE Advection Option : Positive-Definite Positive-Definite Positive-Definite
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