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Meteorological Field Descriptions

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The following table defines the 4-letter ID meteorological field used by HYSPLIT and READY programs.

# FIELD CONVERSION UNITS   CONTOUR                DESCRIPTION
   ID     FACTOR           INTERVAL

3 NULL      1.00            0.00                   MISSING DATA
1 TMPS      1.00  DEGC      0.00               SURFACE TEMPERATURE
1 VSBY      .001  KM       10.00                    VISIBILITY        
1 MSLP      1.00  HPA       4.00             MEAN SEA-LEVEL PRESSURE
1 PRSS      1.00  HPA       0.00                 SURFACE PRESSURE
1 ICWT      1.00  0--1       .00                 ICE-COVERED WATER
1 SNOW      1.00  0--1       .00                   SNOW COVERAGE
1 SNWD      1.00  CM        1.00                     SNOW DEPTH   
1 SHGT      1.00  M         0.00                   SURFACE HEIGHT
1 TOPO      1.00  M         0.00                     TOPOGRAPHY
1 CPPT      1.00  MM        5.00                CONVECTIVE PRECIPITATION
1 TPP1      1.00   M        1.00            1 HOUR ACCUMULATED PRECIPITATION
1 TPP3      1.00  MM        1.00        3-HOUR ACCUMULATED PRECIPITATION
1 CPP3      1.00  MM        1.00       3-HOUR ACC. CONVECTIVE PRECIPITATION
1 TPP6      1.00  MM        5.00           6-HOUR ACCUMULATED PRECIPITATION
1 CPP6      1.00  MM        5.00        6-HOUR ACC. CONVECTIVE PRECIPITATION
1 TPPT      1.00  MM        5.00         12-HOUR ACCUMULATED PRECIPITATION
1 TPPA      1.00  MM        5.00           TOTAL ACCUMULATED PRECIPITATION
1 PRAT      1.00  KGM2      0.00                  PRECIPITATION RATE
1 HFLX      1.00  W/M2     25.00                  LATENT HEAT FLUX
1 SHTF      1.00  W/M2      0.00               SENSIBLE HEAT NET FLUX
1 LHTF      1.00  W/M2      0.00                LATENT HEAT NET FLUX
1 ULWF      1.00  W/M2      0.00           UPWARD LONG WAVE RADIATION FLUX
1 DLWF      1.00  W/M2      0.00          DOWNWARD LONG WAVE RADIATION FLUX
1 DSWF      1.00  W/M2      0.00          DOWNWARD SHORT WAVE RADIATION FLUX
1 QSTR   1000.00  G/KG      1.00                   FLUX MIXING RATIO
1 WFLX   1000.00  GM2S      1.00                   WATER VAPOR FLUX
1 EXCO   1000.00  GM2S      0.00                 EXCHANGE COEFFICIENT
3 MXLR      1.00  0--N      1.00             NUMBER OF MIXED SIGMA LAYERS
1 MXHT      1.00  M         0.00                  MIXED LAYER DEPTH
1 PBLH      1.00  M         0.00              PLANETARY BOUNDARY LAYER HEIGHT
1 THTS      1.00  DEFC      5.00            SURFACE POTENTIAL TEMPERATURE
1 U10M      1.00  M/S        .00                10 M U-WIND COMPONENT
1 V10M      1.00  M/S        .00                10 M V-WIND COMPONENT
1 UMOF      1.00  N/M2      0.00           MOMENTUM FLUX, U-WIND COMPONENT
1 VMOF      1.00  N/M2      0.00           MOMENTUM FLUX, V-WIND COMPONENT
1 MOMF      1.00  N/M2      0.00                TOTAL MOMENTUM FLUX
1 DEPV      1.00  M/S       0.01                 DEPOSITION VELOCITY
1 USTR    100.00  M/S      10.00                 FRICTION VELOCITY
1 TSTR      1.00  DEGC      0.00                 FLUX TEMPERATURE
1 VGTP      1.00  0--1      1.00                 VEGETATION TYPE
1 T02M      1.00  DEGC      5.00                 2 M TEMPERATURE
2 TEMP      1.00  DEGC      0.00                   TEMPERATURE
2 UWND      1.00  M/S       5.00                 U-WIND COMPONENT
2 VWND      1.00  M/S       5.00                 V-WIND COMPONENT
2 FLAG      1.00  KNTS      0.00                    WIND FLAGS
2 WVCT      1.00  KNTS      0.00                   WIND VECTORS
2 STRM      1.00  KNTS      0.00                   STREAMLINES 
2 WSPD      1.00  KNTS      5.00                    WIND SPEED
2 WWND   3600.00  MB/H      5.00                 W-WIND COMPONENT
2 SPHU   1000.00  G/KG      1.00                 SPECIFIC HUMIDITY
2 RELH      1.00  PCT      20.00                 RELATIVE HUMIDITY
1 DP2M      1.00  DEGC      0.00                    2 M DEW POINT
2 HGTS      0.10   DM       6.00                      HEIGHT 
2 TKEN      1.00  JOUL      0.00                TOTAL KINETIC ENERGY
2 PRES      1.00  HPA       4.00                      PRESSURE
1 THKN      0.10   DM       6.00                     THICKNESS
3 HGT1      1.00  M        60.00                   1000 MB HEIGHT
3 HGT5      1.00  M        60.00                    500 MB HEIGHT
3 ABSV 100000.00  /S        2.00                  ABSOLUTE VORTICITY
3 CONC      1.00   /M3       .00                     CONCENTRATION
1 SFCC      1.00   /M3       .00                 SURFACE CONCENTRATION
1 DEPS      1.00   /M2       .00                  SURFACE DEPOSITION
1 DEPO      1.00   /M2       .00                  SURFACE DEPOSITION
1 OPPT      1.00  MM         .25                OBSERVED PRECIPITATION
1 SOLW      1.00  KG/M2      .00           0 TO 200 CM SOIL MOISTURE CONTENT
1 SOLT      1.00  DEGC       .00                    SOIL TEMPERATURE 
1 SOLM      1.00  KG/M2      .00                     SOIL MOISTURE
1 RH2M      1.00   PCT     20.00               2 METER RELATIVE HUMIDITY
3 P10M      1.00   K         .00                  POTENTIAL TEMPERATURE 
3 WESD      1.00  KG/M2      .00           WATER EQUIV. OF ACCUM. SNOW DEPTH
3 SNOC      1.00  PCT      10.00                    SNOW COVERAGE 
3 CSNO      1.00  0--1       .50               CATEGORIAL SNOW (YES=1/NO=0)
3 CICE      1.00  0--1       .50           CATEGORIAL ICE PELLETS (YES=1/NO=0)
3 CFZR      1.00  0--1       .50          CATEGORIAL FREEZING RAIN (YES=1/NO=0)
3 CRAI      1.00  0--1       .50               CATEGORIAL RAIN (YES=1/NO=0)
3 PTYP      1.00  1--5      1.00        PRECIPITATION TYPE (RA=1,TRW=2,ZR=3,ICE=4,SN=5)
1 RGHS      1.00   M         .00                   SURFACE ROUGHNESS
3 LCLD      1.00   PCT     10.00                    LOW CLOUD COVER
3 MCLD      1.00   PCT     10.00                  MEDIUM CLOUD COVER
3 HCLD      1.00   PCT     10.00                   HIGH CLOUD COVER
3 TCLD      1.00   PCT     20.00               AVERAGE TOTAL CLOUD COVER
3 CLDB      1.00   M        0.00                 CLOUD BOTTOM HEIGHT
3 CLDT      1.00   M        0.00                   CLOUD TOP HEIGHT
3 CWMR      1.00  G/KG      0.00               CLOUD WATER MIXING RATIO
3 WTMP      1.00  DEGC       .00                   WATER TEMPERATURE
3 LISD      1.00  DEGC      3.00               STANDARD LIFTED INDEX  
3 LIB4      1.00  K         3.00             BEST 4-LAYER LIFTED INDEX  
3 CAPE      1.00  J/KG       .00      CONVECTIVE AVAILABLE POTENTIAL ENERGY
3 CINH      1.00  J/KG       .00                 CONVECTIVE INHIBITION
3 REFC      1.00   dBZ      5.00                COMPOSITE REFLECTIVITY
3 LTNG      1.00             .00                    LIGHTNING STRIKES
Modified: August 18, 2016
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