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EMC > NAM >
NAM/HIRESW
Mesoscale Branch Parallel Home Page

Mesoscale Branch Parallel Home Page

Old Mesoscale Branch Parallel Web Page

Parallel Experiment Name Slot Cntrl Start date End date Implementation date
NEMS/NMMB NAM parallel test NAMX NAMB until 18z 1/29/2013, ops NAM thereafter 2012/04/21/12Z
NEMS/NMMB NAM parallel test NAMB NAMX until 06Z 10/18/2011, Ops NAM until 18z 1/29/2013, NAMX thereafter 2011/08/08/12Z 2014/03/10/00Z
NEMS/NMMB NAM parallel test NAMZC Ops NAM 2013/03/24/00Z 2013/07/25/00Z
NEMS/NMMB NAM parallel test NAMZ Ops NAM until 12z 9/5/2012, NAMX thereafter 2012/06/18/12Z 2013/07/25/00Z
NEMS/NMMB NAM parallel test, w/nested NMMB parallel NAMX
AKNESTX, CONUSNESTX (starting 12z 5/17/2010),
HAWAIINESTX, PRICONESTX (starting 12z 7/14/2010)
NAMB until 00z 3/23/2011, Ops NAM thereafter 2009/12/01/12Z 2011/10/18/06Z 2011/10/18/12Z
NEMS/NMMB NAM parallel test NAMB Operational NAM 2009/07/29/18Z 2011/03/23/00Z 2011/10/18/12Z
NAM parallel with assorted bug fixes NAMX NCO NAM run on cirrus until 8/11/2009, operational NAM thereafter 2009/02/10/00Z 2009/10/09/12Z (date 84-h 00z/12z forecast turned off; NDAS will still run until implementation) 2009/11/03/18Z
NAM Fall 2008 Change Package (NCO real-time parallel) NAMX ops NAM 2008/10/01/00Z 2008/12/16/06Z 2008/12/16/12Z
North American WRF-NMM with various physics and/or analysis changes NAMY NAMEXP until 00z 3/31/2008, ops NAM thereafter 2007/12/18/12Z 2008/10/08/12Z All changes except TAMDAR data and partial cycling implemented at 12z 3/31/2008, partial cycling and other changes implemented 12z 12/16/2008
North American WRF-NMM with various physics and/or analysis changes NAMX NAMEXP until 00z 8/12/08, NAMY thereafter 2008/07/14/12Z 2008/09/16/12Z 2008/12/16/12Z
North American WRF-NMM with various physics and/or analysis changes NAMR NAMY 2008/07/01/12Z 2008/08/01/00Z
North American WRF-NMM with use of GDAS first guess for on-time GSI analysis NAMR NAMY, ops NAM 2008/05/21/00Z 2008/07/01/00Z
North American WRF-NMM with various physics and/or analysis changes NAMEXP Ops NAM, NAMY (from 12z 7/14) 2008/03/31/18Z 2008/08/12/00Z 2008/12/16/12Z
North American WRF-NMM with expanded integration domain and various physics and/or analysis changes; real-time NCO NAM parallel NAMX Ops NAM 2008/01/12/00Z 2008/03/31/06Z 2008/03/31/12Z
North American WRF-NMM with various physics and/or analysis changes NAMR NAMY 2007/08/28/12Z 2007/12/05/00Z
North American WRF-NMM with 20% reduction of raob data in the stratosphere NAMR Ops NAM 2007/06/13/00Z 2007/08/08/12Z
North American WRF-NMM with expanded integration domain and various physics and/or analysis changes NAMEXP Ops NAM until 12z 2/25/2008, NAMX thereafter 2007/04/19/00Z 2008/03/31/00Z Two WRF-NMM model changes (roughness length for heat and change to the minimum canopy resistance for evergreen and mixed forest) were implemented into the ops NDAS/NAM on 6/19/2007
All other changes except for TAMDAR data implemented at 12z 3/31/2008
North American WRF-NMM with various physics and/or analysis changes NAMX Ops NAM 2006/10/24/00Z 2007/06/25/12Z
North American WRF-NMM with various physics and/or analysis changes NAMY Ops NAM 2006/12/21/00Z 2007/12/18/00Z Two WRF-NMM model changes (roughness length for heat and change to the minimum canopy resistance for evergreen and mixed forest) were implemented into the ops NDAS/NAM on 6/19/2007
North American WRF-NMM various analysis and/or physics changes NAMX Parallel Ops NAM run on mist 2006/10/24/00Z 2007/01/22/12Z
North American WRF-NMM with fully cycled land-states, 2 mb model top pressure, various experimental tests NAMY NAMX until 00Z 20 June 2006, Ops NAM thereafter 2006/03/02/00Z 2006/12/19/12z 2006/06/20/12Z (WRF-NMM and GSI implemented into production NAM)
2006/12/19/12Z (Divergence damping, BMJ convection, microphyiscs, and horizontal diffusion changes implemented into production NAM)
North American WRF-NMM with fully cycled land-states and 2 mb model top pressure NAMX Ops NAM 2005/10/27/00Z 2006/06/20/06Z 2006/06/20/12Z
North American WRF-NMM with fully cycled land-states, 2 mb model top pressure NAMY Ops NAM, NAMX 2005/11/04/12Z 2006/01/11/12Z 2006/06/20/12Z
North American WRF-NMM with fully cycled land-states NAMXF Ops NAM 2005/08/30/12Z 2005/11/04/00Z 2006/06/20/12Z
North American WRF-NMM with ops NAM land states, terrain, z0 NAMX Ops NAM 2005/05/26/12Z 2005/10/26/12Z 2006/06/20/12Z
Eta-32 with winter 2005 ops Eta change package and experimental changes to ops radiation ETAL ETAY 2004/11/17/12Z 2004/12/13/12Z 2005/05/03/12Z
NAM-12 and DGEX with winter 2005 ops NAM change package NAMX Operational NAM-12 2004/11/01/12Z for NAM, 2005/1/2/00z for DGEX 2005/05/03/00Z 2005/05/03/12Z
Eta-32 with winter 2005 ops Eta change package and experimental changes to GFS radiation and/or cloud microphysics ETAW ETAL 2004/09/24/12Z 2004/11/17/12Z 2005/05/03/12Z
Eta-32 with assimilation of surface temperature data ETAW ETAV 2004/09/09/12Z 2004/09/24/00Z 2005/05/03/12Z
Eta-32 with winter 2005 ops Eta change package and experimental changes to GFS radiation and/or cloud microphyiscs ETAL ETAY 2004/09/09/12Z 2004/10/25/12Z 2005/05/03/12Z
Eta-32 with winter 2005 ops Eta change package ETAY ETAV 2004/08/23/12Z 2005/01/24/12Z 2005/05/03/12Z
Eta-32 with modified shallow convection parameterization ETAW ETAV 2004/06/28/12Z 2004/09/09/00Z
Eta-32 with assimilation of Level 2.5 radial wind data ETAW ETAV 2004/06/04/12Z 2004/06/28/00Z 2005/05/03/12Z
Eta-32 with GFS radiation physics ETAY ETAV 2004/04/30/12Z 2004/08/23/00Z
Eta-32 with modified precipitation assimilation, modified PBL physics, modified land-surface physics, assimilation of NEXRAD level 2.5 radial wind data ETAZ ETAV 2004/04/29/12Z; modified PBL physics added 2004/07/16/00Z, modified land-surface physics added 2004/07/26/12Z, assimilation of Level 2.5 radial winds added 2004/09/20/12Z 2005/01/24/12Z 2005/05/03/12Z
Eta-32 with modified Eta land-surface physics and modified precipitation assimilation (added 6/1/04) ETAL ETAY until 00Z 4/30, ETAV until 00Z 7/28, ETAZ thereafter 2003/12/01/12Z 2004/09/09/00Z 2005/05/03/12Z
Eta-12 with minor change to the Eta land-surface physics, adjustment of biases in the multi-sensor precipitation analyses using daily gauge data, and use of GOES-12 radiances in the Eta 3DVAR analysis ETAX Operational Eta-12 2004/01/09/12Z 2004/03/16/12Z 2004/03/16/12Z
Eta-32 with modified Eta land-surface physics ETAY ETAV 2003/11/26/00Z 2004/04/30/00Z
Eta-12 with modified Eta land-surface physics, adjustment of biases in the multi-sensor precipitation analyses using daily gauge data, and use of GOES-12 radiances in the Eta 3DVAR analysis ETAX Operational Eta-12 2003/10/25/00Z 2004/01/09/00Z 3 May 2005 for NOAH-LSM changes, 16 March 2004 for the others
Eta-32 with modified Eta land-surface physics, adjustment of biases in the multi-sensor precipitation analyses using daily gauge data, use of GOES-12 radiances in the Eta 3DVAR analysis, and modified radiation physics ETAY ETAV 2003/09/09/12Z, restarted 2003/10/04/00Z, new radiation physics added 2003/10/10/12Z 2003/11/25/12Z 3 May 2005 for NOAH-LSM changes, 16 March 2004 for the others
Eta-12 with surface land temperatures excluded from the 3DVAR analysis ETAX Ops Eta-12 2003/08/13/12Z 2003/09/09/00Z 2003/09/10/18Z
Eta-32 with new radiation physics, modified BMJ convective parameterization, and adjustment of biases in the multi-sensor precipitation analyses using daily gauge data. ETAY ETAV 2003/07/23/12Z, restarted at 12Z 8/26/2003 2003/09/09/00Z 16 March 2004 for the precipitation bias adjustment
Eta-32 with assimilation of merged Stage II/Stage IV precipitation analyses ETAL ETAV 2002/11/19/12Z 2003/01/13/12Z 2003/07/08/12Z
Eta-32 with modified treatment of surface data in the Eta 3DVAR analysis ETAL ETAV 2002/10/30/12Z 2002/11/19/00Z
Eta-32 with reduced aerodynamic resistance and reduced canopy resistance to transpiration ETAL ETAV 2002/10/08/12Z 2002/10/30/00Z
Eta-12 with modified cloud microphysics, assimilation of GOES cloud top pressure data, assimilation of NEXRAD radial velocity data ETAX Ops Eta-12 2002/08/14/12Z ; EDAS restarted from production at 12Z 9/19/02 2003/07/08/00Z 2003/07/08/12Z
Eta-32 forecast from GFS initial conditions ETAY ETAV 2002/10/01/12Z 2003/05/24/12Z Not applicable
Eta-32 with GOES cloud top pressure assimilation ETAY ETAZ 2002/06/25/12Z 2002/07/09/00Z 2003/07/08/12Z
Eta-12 with reduced physics timestep ETAX Ops Eta-12 2002/06/03/12Z 2002/06/14/00Z 2002/06/19/12Z
Eta-32 with modified cloud microphysics ETAZ ETAV 2002/03/19/12Z 2002/07/09/00Z 2003/07/08/12Z
Eta-32 with new radiance processing ETAY ETAV 2002/03/06/12Z 2002/06/03/00Z 2003/07/08/12Z
Eta-32 with assimilation of NEXRAD radial winds ETAL ETAV (to 00Z 3/6/2002)
ETAY (from 00Z 3/6/2002)
2002/02/22/12Z 2002/06/03/00Z 2003/07/08/12Z
Meso-08 HiResWindow Model - Eastern U.S. Nest EAST8 EAST 2002/02/10/18Z 2002/07/10/06Z 2002/07/17/12Z
Meso-08 HiResWindow Model - Central U.S. Nest CENT8 CENT 2002/02/10/12Z 2002/07/10/06Z 2002/07/17/12Z
Meso-08 HiResWindow Model - Western U.S. Nest WEST8 WEST 2002/02/10/06Z 2002/07/10/06Z 2002/07/17/12Z
Meso-08 HiResWindow Model - Puerto Rico Nest PR08 PR10 2002/02/10/06Z 2002/07/10/06Z 2002/07/17/12Z
Meso-10 HiResWindow Model - Alaska Nest AK10 AK12 2002/02/10/00Z 2002/07/10/06Z 2002/07/17/12Z
Meso-08 HiResWindow Model - Hawaii Nest HI08 HI10 2002/02/10/00Z 2002/07/10/06Z 2002/07/17/12Z
Eta-32 with new radiance processing and modified cloud microphysics / EDAS precipitation assimilation ETAY ETAV 2002/01/23/00Z 2002/03/06/00Z 2003/07/08/12Z
Eta-32 with modified thermal conductivity through snow cover ETAL ETAV 2002/01/23/00Z 2002/02/22/00Z 2002/02/26/12Z
Eta-10 Central nest with NEXRAD Winds CENTX CENT 2002/01/15/12Z 2002/04/14/12Z Spring/summer 2002

Disclaimer

Eric Rogers
NCEP/EMC Mesoscale Modeling Branch
Page Last Modified: 18 December 2007