WRF - Developmental Testbed Center

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wrf.exe: WRF-NMM model integrationThese executables are linked to run/ and test/nmm_real/. The test/nmm_real and rundirectories are working directories that can be used for running the model.More details on the WRF-NMM core, physics options, and running the model can befound in Chapter 5. WRF-NMM input data must be created using the WPS code (seeChapter 3).Building the WRF Preprocessing System (WPS)How to Install the WPSThe WRF Preprocessing System uses a build mechanism similar to that used by the WRFmodel. External libraries for geogrid and metgrid are limited to those required by theWRF model, since the WPS uses the WRF model's implementations of the I/O API;consequently, WRF must be compiled prior to installation of the WPS so that the I/O APIlibraries in the external directory of WRF will be available to WPS programs.Additionally, the ungrib program requires three compression libraries for GRIB Edition2 support (described in the Required/Optional Libraries above) However, if support forGRIB2 data is not needed, ungrib can be compiled without these compression libraries.Once the WPS tar file has been obtained, unpack it at the same directory level asWRFV3/.tar –zxvf WPS.tar.gzAt this point, a listing of the current working directory should at least include thedirectories WRFV3/ and WPS/. First, compile WRF (see the instructions for installingWRF). Then, after the WRF executables are generated, change to the WPS directory andissue the configure command followed by the compile command, as shown below.cd WPS/./configureChoose one of the configure options listed../compile >& compile_wps.outputAfter issuing the compile command, a listing of the current working directory shouldreveal symbolic links to executables for each of the three WPS programs: geogrid.exe,ungrib.exe, and metgrid.exe, if the WPS software was successfully installed. If any ofthese links do not exist, check the compilation output in compile_wps.output to see whatwent wrong.WRF-NMM V3: User’s Guide 2-9
In addition to these three links, a namelist.wps file should exist. Thus, a listing of theWPS root directory should include:arch/cleancompilecompile_wps.outconfigureconfigure.wpsgeogrid/geogrid.exe -> geogrid/src/geogrid.exelink_grib.cshmetgrid/metgrid.exe -> metgrid/src/metgrid.exenamelist.wpsnamelist.wps.all_optionsnamelist.wps.nmmREADMEungrib/ungrib.exe -> ungrib/src/ungrib.exeutil/More details on the functions of the WPS and how to run it can be found in Chapter 3.WRF-NMM V3: User’s Guide 2-10
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: HWRF is set, then (3) will be autom
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 and 64: Running WPPFour scripts for running
Page 65 and 66: i. As the grid id of a pre-defined
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The GrADS package is available from
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Height on pressure surface HEIGHT O
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MELTPrecipitation type (4 types) -
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Press at tropopause PRESS AT TROPOP
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RIP4RIP IntroductionRIP (which stan
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A successful compilation will resul
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iinterp = 0v v v v vH V H V h h h h
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espectively, of the centered domain
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This can be either 'h' (for hours),
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eal variable expect values that are
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of all the requested trajectories a
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Creating Vis5D Dataset with RIPVis5
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User’s Guide for the NMM Core of
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Configuration: The configure script
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This program reads the contents of
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Period - Describes communications f
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fine grid), f (forcing, how the lat
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# halo HALO_NMM_K dyn_nmm8:q2;24:t
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(http://www.mmm.ucar.edu/wrf/WG2/Ti
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User's Guide for the NMM Core of th
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2. Make sure the files listed below
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User's Guide for the NMM Core of th
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Program geogridThe purpose of geogr
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1. Define a model coarse domain and
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to GEOGRID.TBL in the geogrid direc
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the GRIB data were downloaded to th
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By this point, there is generally n
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two nests are defined to have the s
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Note: For the WRF-NMM the variables
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simulations may use a constant SST
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entire simulation domain, and data
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that lists the variables and attrib
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http://www.ecmwf.int/products/data/
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intermediate formats (metgrid/src/r
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GRIB1| Level| From | To |Param| Typ
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corresponding source grid point. Gi
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tile_x = 1200tile_y = 1200tile_z =
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1. PARENT_ID : A list of MAX_DOM in
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V -DX- H| / |DY dx DY| / |H - DX- V
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intermediate files if ungrib is to
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the index and data tiles for the da
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1. PROJECTION : A character string
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25. SCALE_FACTOR : A real value tha
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10. INTERP_MASK : The name of the f
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1. four_pt : Four-point bi-linear i
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8. search : Breadth-first search in
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19 Mixed Tundra20 Barren TundraTabl
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LU_INDEX:units = "category" ;LU_IND
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netcdf met_em.d01.2009-01-05_12:00:
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}:ISOILWATER = 14 ;:grid_id = 1 ;:p
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WRF - Developmental Testbed Center

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