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DATA ASSIMILATION ACTIVITIES at Servicio Meteorológico Nacional

Explore the components of an NWP system through forecast simulations in three domains in Mexico at various resolutions using different parametrizations and input data sources. Discover the potential capacity of data assimilation and the impact of various profilers on forecast accuracy.

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DATA ASSIMILATION ACTIVITIES at Servicio Meteorológico Nacional

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  1. DATA ASSIMILATION ACTIVITIES at Servicio Meteorológico Nacional Martín Montero M. José Luis Pérez Faustino Ramìrez .G. Humberto Hernández SMN

  2. The Components of an NWP System

  3. Two Forecast Simulations to 72 hrs 3 Domains 1. Mexico region to 16 Kms 2. Chiapas region 8 Kms, and 3. Valley of Mexico to 4 Kms

  4. Parametrizations cu_phy : Kain Fritz (exept domain 3) mp_phy: Kessler scheme ra_lw : rrtm scheme ra_sw_phys: Dudhia scheme sf_sfclay_phy : Monin Obukov scheme sf_surface_phy : NOAH land surface model bl_pbl_phys: Mellor-Yamada-Janjic

  5. Mexican Rain gauge networkAverage distance between stations 33 Kms

  6. Input data WRF Initialization and Boundary Conditions Outputs Forecast of GFS model to 50 Kms, 00 y 12Z

  7. Data Assimilation • Systems: • GSI (Grid Statistical Interpolation, NCEP), • WRFDA (NCAR). Not tested yet. • Input data: • Fisrt Guess (GFS Analysis) • PREPBUFR (GDAS NCEP) file • Satellite data radiances • Datos from MADIS hourly data (under development)

  8. SMN, Potential Capacity of data assimilation MADIS ACARE Profilers netcdf \20111103_1500 { dimensions: recNum = UNLIMITED ; // (38 currently) enLen = 12 ; AirportIdLen = 6 ; maxLevels = 200 ; QCcheckNum = 12 ; QCcheckNameLen = 60 ; Source rftp..madis-data.noaa.gov

  9. Data Sources int dataSource(recNum) ; dataSource:long_name = "data stream that provided the data" ; dataSource:value_0 = "ACARS (direct to FSL from airlines)" ; dataSource:value_1 = "MDCRS (from TG\'s BUFR file from ARINC)" ; dataSource:value_2 = "appeared in both ACARS and MDCRS data streams" ; dataSource:value_3 = "AMDAR data, including LH BUFR data" ; dataSource:value_4 = "TAMDAR data from AirDat, LLC" ; dataSource:value_5 = "Canadian AMDAR data from CMC" ; dataSource:value_6 = "E-AMDAR" ; dataSource:value_7 = "TAMDAR operational data" ; dataSource:value_8 = "appeared in both TAMDAR and TAMDAR operational data streams" ;.

  10. Display of AMDAR data

  11. Diff. Acum. Pcp (mm), KF(DA_GSI) - KF

  12. Diff. Temperature (C), KF(DA_GSI) - KF

  13. Fcst. Pcp to 24 hrs. Res. 8 Kms. Precipitation (mm) Oct 5 2011 Fcst Pcp to 24 hrs. Res. 4 Kms.

  14. THANKS

  15. II. Parametrizations cu_phy : Kain Fritz (exept domain 3) Mphy: Kessler scheme ra_lw : rrtm scheme ra_sw_phys: Dudhia scheme sf_sfclay_phy : Monin Obukov scheme sf_surface_phy : NOAH land surface model bñ_pbl_phy: Mellor-Yamada-Janjic

  16. NUMERICAL SYSTEM FORECAST WRF 3.3 ARW

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