Interface Output from the NCEP Land Surface Decoder
| Mnemonic | Description | Units | Value |
|---|---|---|---|
| STID | Station ID | CCITT IA5 | civals (icstid) |
| SLAT | Station latitude | Degrees | rivals (irslat) |
| SLON | Station longitude | Degrees | rivals (irslon) |
| SELV | Station Elevation | Meters | rivals (irselv) |
| TOST | Type of Station | WMO BUFR Code Table 002001 | rivals (irtost) |
| ITSO | Indicator for Station Operation and for Present and Past Weather | WMO Code Table 1860 | rivals (iritso) |
| YEAR | Report year | Year | rivals (iryear) |
| MNTH | Report month | Month | rivals (irmnth) |
| DAYS | Report day | Day | rivals (irdays) |
| HOUR | Report hour | Hour | rivals (irhour) |
| MINU | Report minute | Minute | rivals (irminu) |
| ISWS | Indicator for Source and Units of Wind Speed | WMO Code Table 1855 | rivals (irisws) |
| DRCT | Wind direction | Degrees true | rivals (irdrct) |
| SPED | Wind speed | Meters / Sec | rivals (irsped) |
| NSPW | Number of Supplementary Wind Groups | Numeric | rivals (irnspw) |
| SPWP | Supplementary Wind Period | Minutes | rivals (irspwp(1..NSPW)) |
| SPWS | Supplementary Wind Speed | Meters / Sec | rivals (irspwt(1..NSPW)) |
| SPWT | Supplementary Wind Type Groups | Code Table | rivals (irspwt(1..NSPW)) |
| PWYR | Year of Peak Wind Observation | Year | rivals (irpwyr) |
| PWMO | Month of Peak Wind Observation | Month | rivals (irpwmo) |
| PWDY | Day of Month of Peak Wind Observation | Day | rivals (irpwdy) |
| PWHR | Hour of Peak Wind Observation | Hour | rivals (irpwhr) |
| PWMN | Minute of Hour of Peak Wind Observation | Minute | rivals (irpwmn) |
| PWSP | Peak Wind Speed | Meters / Sec | rivals (irpwsp) |
| PWDR | Peak Wind Direction | Degrees True | rivals (irpwdr) |
| PRES | Station Pressure | Hectopascals | rivals (irpres) |
| PMSL | Mean Sea Level Pressure | Hectopascals | rivals (irpmsl) |
| CHPT | Characteristic of 3-Hourly Pressure Tendency | WMO Code Table 200 | rivals (irchpt) |
| 3HPC | 3-Hourly Pressure Change | Hectopascals | rivals (ir3hpc) |
| P03D | appp 3-Hourly Pressure Change Group | Numeric | rivals (irp03d) |
| ISOB | Standard Isobaric Surface of the Geopotential | WMO Code Table 0264 | rivals (irisob) |
| GEOP | Geopotential of an agreed Standard Isobaric Surface | Meters | rivals (irgeop) |
| 24PC | Amount of Surface Pressure Change in Last 24 Hours | Hectopascals | rivals (ir24pc) |
| TMPC | Temperature | Degrees Celsius | rivals (irtmpc) |
| DWPC | Dewpoint temperature | Degrees Celsius | rivals (irdwpc) |
| RELH | Relative humidity | Percent | rivals (irrelh) |
| MSST | Indicator for Sign and Type of Measurement of Sea surface temperature | WMO Code Table 3850 | rivals (irmsst) |
| SSTC | Sea surface temperature | Degrees Celsius | rivals (irsstc) |
| STMWC | Indicator for Sign and Type of Measurement of Wet Bulb Temperature | WMO Code Table 3855 | rivals (irstwc) |
| TMWC | Wet Bulb Temperature | Degrees Celsius | rivals (irtmwc) |
| DTFV1 | Time Period of Maximum Air Temperature | Hours | rivals (irdtv1) |
| MXTM | Maximum Air Temperature | Degrees Celsius | rivals (irmxtm) |
| DTFV2 | Time Period of Minimum Air Temperature | Hours | rivals (irdtv2) |
| MITM | Minimum Air Temperature | Degrees Celsius | rivals (irmitm) |
| WWMO | Present Weather Reported from a Manned Weather Station | WMO Code Table 4677 | rivals (irwwmo) |
| WWMA | Present Weather Reported from an Automatic Weather Station | WMO Code Table 4680 | rivals (irwwma) |
| PWWM | Past Weather 1 Reported from a Manned Weather Station | WMO Code Table 4561 | rivals (irpwwm) |
| PWWA | Past Weather 1 Reported from an Automatic Weather Station | WMO Code Table 4531 | rivals (irpwwa) |
| PSW2 | Past Weather 2 Reported from a Manned Weather Station | WMO Code Table 4561 | rivals (irpsw2) |
| PAW2 | Past Weather 2 Reported from an Automatic Weather Station | WMO Code Table 4531 | rivals (irpwa2) |
| PWPD | Period of the Past Weather | Hours | rivals (irpwpd) |
| INPC | Indicator for Inclusion or Omission of Precipitation Data | WMO Code Table 1819 | rivals (irinpc) |
| NPCV | Number of Precipitation Values | Numeric | rivals (irnpcv) |
| PPRD | Period of the Precipitation | Hours | rivals (irpprd(1..NPCV)) |
| PAMT | Precipitation Amount | Millimeters | rivals (irpamt(1..NPCV)) |
| DHFS | Time Period of Newly Fallen Fresh Snow | Hours | rivals (irdhfs) |
| DOFS | Depth of Fresh Snow | Meters | rivals (irdofs) |
| SNCM | Total Depth of Snow | WMO Code Table 3889 | rivals (irsncm) |
| SGR1 | State of the Ground Without Snow or Measurable Ice Cover | WMO Code Table 0901 | rivals (irsgr1) |
| SGR2 | State of the Ground With Snow or Measurable Ice Cover | WMO Code Table 0975 | rivals (irsgr2) |
| WPER | Period of the Waves Obtained by Instrumental Methods | Seconds | rivals (irwper) |
| WHGT | Height of the Waves Obtained by Instrumental Methods | Meters | rivals (irwhgt) |
| POWW | Period of the Wind Waves | Seconds | rivals (irpoww) |
| HOWW | Height of the Wind Waves | Meters | rivals (irpoww) |
| NSWV | Number of Sets of Swell Wave Groups | Numeric | rivals (irnswv) |
| DOSW | True Direction from which Swell Waves are Coming | Degrees | rivals (irdosw(1..NSWV)) |
| POSW | Period of Swell Waves | Seconds | rivals (irposw(1..NSWV)) |
| HOSW | Height of Swell Waves | Meters | rivals (irhosw(1..NSWV)) |
| VSBK | Horizontal Visibility | Kilometers | rivals (irvsbk) |
| VRTM | Vertical Visibility | Meters | rivals (irvrtm) |
| CFRT | Total Cloud Cover | WMO Code Table 2700 | rivals (ircfrt) |
| NCLO | Total Number of cloud layers Described in Sections 1 and 3 | Numeric | rivals (irnclo) |
| VSSO | Vertical Significance | WMO BUFR Table 008002 | rivals (irvsso(1..NCLO)) |
| CLAM | Cloud Amount | WMO BUFR Table 020011 | rivals (irclam(1..NCLO)) |
| CLTP | Genus of Cloud | WMO BUFR Table 020012 | rivals (ircltp(1..NCLO)) |
| HOCB | Height of Cloud Base | Meters | rivals (irhocb(1..NCLO)) |
| CTDS | Description of Top of Cloud Whose Base is Below Station | WMO Code Table 0552 | rivals (irctds(1..NCLO)) |
| HOCT | Altitude of Upper Surface of Clouds | Meters | rivals (irhoct(1..NCLO)) |
| CSEC | Report Section of Location of Cloud Data | Numeric | rivals (ircsec(1..NCLO)) |
| CTTP | City Air Temperature | Degrees Celsius | rivals (ircttp) |
| CTMX | City Maximum Air Temperature | Degrees Kelvin | rivals (irctmx) |
| CTMN | City Minimum Air Temperature | Degrees Kelvin | rivals (irctmn) |
| CTP24 | 24-Hour City Precipitation Amount | Millimeters | rivals (ircp24) |
| COIA | Ice Accretion on Ships | WMO Code Table 1751 | rivals (ircoia) |
| IDTH | Thickness of Ice Accretion on Ships | Meters | rivals (iridth) |
| ROIA | Rate of Ice Accretion on Ships | WMO Code Table 3551 | rivals (irroia) |
| HBLCS | Height of base of lowest cloud | WMO Code Table 1600 | rivals (irhblc) |
| MRSQ | Marsden square where mobile station located | WMO Code Table 2590 | rivals (irmrsq) |
| QCEVR | Mobile station indicator for units of elevation | WMO Code Table 1845 | rivals (irqcvr) |
