WRF - Developmental Testbed Center

More documents

Recommendations

Info

called postprd under DOMAINPATH.2. Specify dynamic core being run (“NMM” or “ARW”)3. Specify the forecast cycles to be post-prcoessedstartdate: YYYYMMDDHH of forecast cyclefhr: first forecast hourlastfhr: last forecast hourincrementhr: increment (in hours) between forecast files4. Define location of the post-processor executables5. Link the microphysical table ${WRFPATH}/run/ETAMP_DATA and control file../parm/wrf_control.parm to the working directory6. Set up how many domains will be post-processedFor runs with a single domain, use “for domain d01”.For runs with multiple domains, use “for domain d01 d02 .. dnn”7. Create namelist itag that will be read in by wrfpost.exe from stdin (unit 5). Thisnamelist contains 4 lines:i. Name of the WRF output file to be posted.ii. Format of WRF model output (netcdf or binary).iii. Forecast valid time (not model start time) in WRF format.iv. Model name (NMM or NCAR).8. Run wrfpost and check for errors.• The execution command in the distributed scripts is for a single processor:wrfpost.exe < itag > outpost.• To run wrfpost on multiple processors, the command line should be:o LINUX-MPI systems: mpirun -np N wrfpost.exe < itag > outposto IBM: mpirun.lsf wrfpost.exe < itag > outpost9. Set up grid to post to (see full description under “Run copygb” below)copygb is run with a pre-defined AWIPS gridgridno: standard AWIPS grid to interpolate WRF model output tocopygb ingests a kgds definition on the command linecopygb ingests the contents of file copygb_gridnav.txt or copygb_hwrf.txtthrough variable nav10. Run copygb and check for errors.copygb.exe –xg“grid [kgds]” input_file output_filewhere grid refers to the output grid to which the native forecast is beinginterpolated.The output grid can be specified in three ways:WRF-NMM V3: User’s Guide 7-11
i. As the grid id of a pre-defined AWIPS grid:copygb.exe -g${gridno} -x input_file output_fileFor example, using grid 218:copygb.exe -xg“218” WRFPRS_$domain.${fhr} wrfprs_$domain .${fhr}ii. As a user defined standard grid, such as for grid 255:copygb.exe –xg“255 kgds” input_file output_filewhere the user defined grid is specified by a full set of kgds parametersdetermining a GRIB GDS (grid description section) in the W3fi63 format.Details on how to specify the kgds parameters are documented in filelib/w3lib/w3fi71.f. For example:copygb.exe -xg“ 255 3 109 91 37719 -77645 8 -71000 10433 9966 0 6442000 42000” WRFPRS_$domain.${fhr} wrfprs_$domain.${fhr}iii. Specifiying output grid as a file: When WRF-NMM output in netCDFformat is processed by wrfpost, two text files copygb_gridnav.txt andcopygb_hwrf.txt are created. These files contain the GRID GDS of aLambert Conformal Grid (file copygb_gridnav.txt) or lat/lon grid(copygb_hwrf.txt) similar in domain and grid spacing to the one used to runthe WRF-NMM model. The contents of one of these files are read intovariable nav and can be used as input to copygb.exe.copygb.exe -xg“$nav” input_file output_fileFor example, when using “copygb_gridnav.txt” for an application the stepsinclude:read nav < 'copygb_gridnav.txt'export navcopygb.exe -xg"${nav}" WRFPRS_$domain.${fhr}wrfprs_$domain.${fhr}If scripts run_wrfpostandgrads or run_wrfpostandgempak are used, additional steps aretaken to create image files (see Visualization section below).Upon a successful run, wrfpost and copygb will generate output files WRFPRS_dnn.hhand wrfprs_dnn.hh, respectively, in the post-processor working directory, where “nn”refers to the domain id and “hh” denotes the forecast hour. In addition, the scriptrun_wrfpostandgrads will produce a suite of gif images named variablehh_GrADS.gif,and the script run_wrfpostandgempak will produce a suite of gif images namedvariablehh.gif. An additional file containing native grid navigation information(griddef.out), which is currently not used, will also be produced.If the run did not complete successfully, a log file in the post-processor working directorycalled wrfpost_dnn.hh.out, where “nn” is the domain id and “hh” is the forecast hour,WRF-NMM V3: User’s Guide 7-12
Page 1 and 2:
ForewordUser's Guide for the NMM Co
Page 3 and 4:
• WPP Directory Structure 7-3•
Page 5 and 6:
The WRF modeling system software is
Page 7 and 8:
WRF-NMM FLOW CHARTTerrestrialDataMo
Page 9 and 10:
Vendor Hardware OS CompilerCray X1
Page 11 and 12:
If all of these executables are def
Page 13 and 14: Once the tar file is obtained, gunz
Page 15 and 16: HWRF is set, then (3) will be autom
Page 17 and 18: In addition to these three links, a
Page 19 and 20: • Real-data simulations• Non-hy
Page 21 and 22: k. Morrison double-moment scheme (1
Page 23 and 24: g. GFDL surface layer (88): (This s
Page 25 and 26: Other physics optionsa. gwd_opt: Gr
Page 27 and 28: to the convergence of meridians app
Page 29 and 30: Variable NamesValue(Example)Descrip
Page 39 and 40: mpirun.lsf wrf.exeand for interacti
Page 41 and 42: The boundary conditions for the nes
Page 43 and 44: Examples:1. One nest and one level
Page 45 and 46: ottom_top_stag = 28 ;soil_layers_st
Page 47 and 48: float HLENSW(Time, south_north, wes
Page 49 and 50: float HBOTS(Time, south_north, west
Page 51 and 52: operational mesoscale Eta model. J.
Page 53 and 54: Mlawer, E. J., S. J. Taubman, P. D.
Page 55 and 56: NCEP WRF Postprocessor (WPP)WPP Int
Page 57 and 58: ./configureYou will be given a list
Page 59 and 60: equested output field. If the pre-r
Page 61 and 62: RAINCV SNOW HBOTRAINNCVSNOWCNote: F
Page 63: Running WPPFour scripts for running
Page 67 and 68: The GrADS package is available from
Page 69 and 70: Height on pressure surface HEIGHT O
Page 71 and 72: MELTPrecipitation type (4 types) -
Page 73 and 74: Press at tropopause PRESS AT TROPOP
Page 75 and 76: RIP4RIP IntroductionRIP (which stan
Page 77 and 78: A successful compilation will resul
Page 79 and 80: iinterp = 0v v v v vH V H V h h h h
Page 81 and 82: espectively, of the centered domain
Page 83 and 84: This can be either 'h' (for hours),
Page 85: eal variable expect values that are
Page 88 and 89: of all the requested trajectories a
Page 90 and 91: Creating Vis5D Dataset with RIPVis5
Page 92 and 93: User’s Guide for the NMM Core of
Page 94 and 95: Configuration: The configure script
Page 96 and 97: This program reads the contents of
Page 98 and 99: Period - Describes communications f
Page 100 and 101: fine grid), f (forcing, how the lat
Page 102 and 103: # halo HALO_NMM_K dyn_nmm8:q2;24:t
Page 104 and 105: (http://www.mmm.ucar.edu/wrf/WG2/Ti
Page 106 and 107: User's Guide for the NMM Core of th
Page 108 and 109: 2. Make sure the files listed below
Page 110 and 111: User's Guide for the NMM Core of th
Page 112 and 113: Program geogridThe purpose of geogr
Page 114 and 115:
1. Define a model coarse domain and
Page 116 and 117:
to GEOGRID.TBL in the geogrid direc
Page 118 and 119:
the GRIB data were downloaded to th
Page 120 and 121:
By this point, there is generally n
Page 122 and 123:
two nests are defined to have the s
Page 124 and 125:
Note: For the WRF-NMM the variables
Page 126 and 127:
simulations may use a constant SST
Page 128 and 129:
entire simulation domain, and data
Page 130 and 131:
that lists the variables and attrib
Page 132 and 133:
http://www.ecmwf.int/products/data/
Page 134 and 135:
intermediate formats (metgrid/src/r
Page 136 and 137:
GRIB1| Level| From | To |Param| Typ
Page 138 and 139:
corresponding source grid point. Gi
Page 140 and 141:
tile_x = 1200tile_y = 1200tile_z =
Page 142 and 143:
1. PARENT_ID : A list of MAX_DOM in
Page 144 and 145:
V -DX- H| / |DY dx DY| / |H - DX- V
Page 146 and 147:
intermediate files if ungrib is to
Page 148 and 149:
the index and data tiles for the da
Page 150 and 151:
1. PROJECTION : A character string
Page 152 and 153:
25. SCALE_FACTOR : A real value tha
Page 154 and 155:
10. INTERP_MASK : The name of the f
Page 156 and 157:
1. four_pt : Four-point bi-linear i
Page 158 and 159:
8. search : Breadth-first search in
Page 160 and 161:
19 Mixed Tundra20 Barren TundraTabl
Page 162 and 163:
LU_INDEX:units = "category" ;LU_IND
Page 164 and 165:
netcdf met_em.d01.2009-01-05_12:00:
Page 166:
}:ISOILWATER = 14 ;:grid_id = 1 ;:p
show all

WRF - Developmental Testbed Center

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?