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ARW Model Specifics. 90-day idealized simulations Sea breeze case; remove island; SST=30C; random thermal perturbations in lowest 10 model levels 20-km/400 grid points in horizontal 44 vertical levels to 30 km
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ARW Model Specifics • 90-day idealized simulations • Sea breeze case; remove island; SST=30C; random thermal perturbations in lowest 10 model levels • 20-km/400 grid points in horizontal • 44 vertical levels to 30 km • Initialize with mean WPAC sounding (from GFSANL) on 00Z/1 September 2014 (0-20N; 120-180E) • Test Tiedtke, NCEP SAS, Grell-Freitas cumulus • Time step 120 seconds • WSM6 microphysics • RRTMG radiation • YSU boundary layer
Tiedtke SAS Grell-Freitas Grell-Freitas w/ MYNN Precipitable water (mm) Days 0–90 No wind
Tiedtke SAS Grell-Freitas Grell-Freitas w/ MYNN Precipitable water (mm) Days 0–90 Constant u=-3 m/s
Tiedtke SAS Grell-Freitas Grell-Freitas w/ MYNN Precipitable water (mm) Days 0–90 Obs u
OLR First 30 days (no wind) Tiedtke SAS Grell-Freitas Grell-Freitas w/ MYNN 720 (hours) 0