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10. INTERP_MASK : The name of the field to be used as an interpolation mask, alongwith the value within that field which signals masked points. A specification takes theform field(maskval), where field is the name of the field and maskval is a real value.Default value is no mask.11. INTERP_LAND_MASK : The name of the field to be used as an interpolation maskwhen interpolating to water points (determined by the static LANDMASK field), alongwith the value within that field which signals land points. A specification takes the formfield(maskval), where field is the name of the field and maskval is a real value. Defaultvalue is no mask.12. INTERP_WATER_MASK : The name of the field to be used as an interpolationmask when interpolating to land points (determined by the static LANDMASK field),along with the value within that field which signals water points. A specification takesthe form field(maskval), where field is the name of the field and maskval is a real value.Default value is no mask.13. FILL_MISSING : A real number specifying the value to be assigned to model gridpoints that received no interpolated value, for example, because of missing or incompletemeteorological data. Default value is 1.E20.14. Z_DIM_NAME : For 3-dimensional meteorological fields, a character string givingthe name of the vertical dimension to be used for the field on output. Default value isnum_metgrid_levels.15. DERIVED : Either yes or no, indicating whether the field is to be derived from otherinterpolated fields, rather than interpolated from an input field. Default value is no.16. FILL_LEV : The fill_lev keyword, which may be specified multiple times within atable section, specifies how a level of the field should be filled if that level does notalready exist. A generic value for the keyword takes the form DLEVEL:FIELD(SLEVEL),where DLEVEL specifies the level in the field to be filled, FIELD specifies the sourcefield from which to copy levels, and SLEVEL specifies the level within the source field touse. DLEVEL may either be an integer or the string all. FIELD may either be the nameof another field, the string const, or the string vertical_index. If FIELD is specified asconst, then SLEVEL is a constant value that will be used to fill with; if FIELD isspecified as vertical_index, then (SLEVEL) must not be specified, and the value of thevertical index of the source field is used; if DLEVEL is 'all', then all levels from the fieldspecified by the level_template keyword are used to fill the corresponding levels in thefield, one at a time. No default value.17. LEVEL_TEMPLATE : A character string giving the name of a field from which a listof vertical levels should be obtained and used as a template. This keyword is used inconjunction with a fill_lev specification that uses all in the DLEVEL part of itsspecification. No default value.<strong>WRF</strong>-NMM V3: User’s Guide 3-45
18. MASKED : Either land or water, indicating whether the field is invalid over land orwater, respectively. When a field is masked, or invalid, the static LANDMASK field willbe used to determine which model grid points the field should be interpolated to; invalidpoints will be assigned the value given by the FILL_MISSING keyword. Default value isnull (i.e., the field is valid for both land and water points).19. MISSING_VALUE : A real number giving the value in the input field that is assumedto represent missing data. No default value.20. VERTICAL_INTERP_OPTION : A character string specifying the verticalinterpolation method that should be used when vertically interpolating to missing points.Currently, this option is not implemented. No default value.21. FLAG_IN_OUTPUT : A character string giving the name of a global attribute whichwill be assigned a value of 1 and written to the metgrid output if the interpolated field isto be output (output=yes). Default value is null (i.e., no flag will be written for the field).Available Interpolation Options in Geogrid and MetgridThrough the GEOGRID.TBL and METGRID.TBL files, the user can control the methodby which source data – either static fields in the case of geogrid or meteorological fieldsin the case of metgrid – are interpolated. In fact, a list of interpolation methods may begiven, in which case, if it is not possible to employ the i-th method in the list, the (i+1)-stmethod will be employed, until either some method can be used or there are no methodsleft to try in the list. For example, to use a four-point bi-linear interpolation scheme for afield, we could specify interp_option=four_pt. However, if the field had areas ofmissing values, which could prevent the four_pt option from being used, we couldrequest that a simple four-point average be tried if the four_pt method couldn't be usedby specifying interp_option=four_pt+average_4pt instead. Below, each of theavailable interpolation options in the WPS are described conceptually; for the details ofeach method, the user is referred to the source code in the fileWPS/geogrid/src/interp_options.F.<strong>WRF</strong>-NMM V3: User’s Guide 3-46
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ForewordUser's Guide for the NMM Co
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• WPP Directory Structure 7-3•
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The WRF modeling system software is
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WRF-NMM FLOW CHARTTerrestrialDataMo
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Vendor Hardware OS CompilerCray X1
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If all of these executables are def
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Once the tar file is obtained, gunz
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HWRF is set, then (3) will be autom
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In addition to these three links, a
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• Real-data simulations• Non-hy
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k. Morrison double-moment scheme (1
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g. GFDL surface layer (88): (This s
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Other physics optionsa. gwd_opt: Gr
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to the convergence of meridians app
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Variable NamesValue(Example)Descrip
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mpirun.lsf wrf.exeand for interacti
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The boundary conditions for the nes
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Examples:1. One nest and one level
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ottom_top_stag = 28 ;soil_layers_st
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float HLENSW(Time, south_north, wes
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float HBOTS(Time, south_north, west
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operational mesoscale Eta model. J.
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Mlawer, E. J., S. J. Taubman, P. D.
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NCEP WRF Postprocessor (WPP)WPP Int
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./configureYou will be given a list
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equested output field. If the pre-r
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RAINCV SNOW HBOTRAINNCVSNOWCNote: F
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Running WPPFour scripts for running
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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
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 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
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