WMO>WWW >WWW Operational Information Service (OIS)> Telecommunications Abbreviated Heading - TAAii CCCC   Explanation of Data Designators T1T2A1A2ii CCCC TABLE C7 Data type designator A1 (when T1 = K) Instructions for the proper application of the level designators   (1)  T1T2 = SZ is allocated to sea level data and deep-ocean tsunami data in any alphanumeric form, including CREX. T1 = K - CREX T2 = F - Surface/Sea Level   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K F A Surface area forecast (e.g. airways) K F D Radiological forecast RADOF K F M Surface forecasts (eg MOS) K F O Maritime forecast MAFOR K F P Forecast amendments (airways) K F R Hydrologic forecast HYFOR K F S Forecast amendments (TAF) K F T Aerodrome forecast (TAF) K F X Other surface forecasts   T1 = K - CREX T2 = O - Oceanographic/limnographic (water properties)   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K O B Buoy observations BUOY 001/025 K O I Sea ice K O P Sub-surface profiling floats TESAC 031/004 K O R Sea surface observations TRACKOB 031/001 K O S Sea surface and below soundings BATHY, TESAC 031/005 K O T Sea surface temperature K O W Sea surface waves WAVEOB 031/002 K O X Other sea environmental WAVEOB 031/002   T1 = K - CREX T2 = P -     T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K P I Sea ice K P S Sea surface and below soundings K P T Sea surface temperature K P W Sea surface waves K P X Other sea environmental   T1 = K - CREX T2 = S - Surface   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K S A 01-29 Routinely scheduled observations for distribution from automatic (fixed or mobile) land stations (e.g. 0000, 0100, … or 0220, 0240, 0300, …, or 0715, 0745, … UTC) n/a 000/006 K S A 30-59 N-minute observations from automatic (fixed or mobile) land stations n/a 000/007 K S B Radar reports (parts A and B) RADOB 006/003 K S C 01-45 Climatic observations from land stations CLIMAT 000/020 K S C 46-59 Climatic observations from marine stations CLIMAT SHIP 001/020 K S D Radiological observation RADREP 010/001 K S E Measurement of surface ozone n/a 008/000 K S F Source of atmospherics SFAZI, SFLOC, SFAZU 000/030 K S I 01-45 Intermediate synoptic observations from fixed land stations SYNOP (SIxx) 000/001 000/051 K S I 46-59 Intermediate synoptic observations from mobile land stations SYNOP MOBIL 000/004 K S M 01-45 Main synoptic observations from fixed land stations SYNOP (SMxx) 000/002 000/052 K S M 46-59 Main synoptic observations from mobile land stations SYNOP MOBIL 000/005 K S N 01-45 Synoptic observations from fixed land stations at non-standard time (i.e. 01, 02, 04, 05, ... UTC) SYNOP (SNxx) 000/000 000/050 K S N 46-59 Synoptic observations from mobile land stations at non-standard time (i.e. 01, 02, 04, 05, 07, 08, 10, 11, 13, ..UTC) SYNOP MOBIL 000/003 K S R Hydrologic reports HYDRA 000/040 K S S 01-19 Synoptic observations from marine stations SHIP 001/000 K S S 20-39 One-hour observations from automatic marine stations n/a 001/006 K S S 40-59 N-minute observations from automatic marine stations n/a 001/007 K S V Special aeronautical observations (SPECI) SPECI 000/011 K S W Aviation routine weather observations (METAR) METAR 000/010 K S X Other surface data IAC, IAC FLEET   T1 = K - CREX T2 = T - ?   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K T E Tsunami K T H Hurricane, typhoon, tropical storm warning K T S Severe weather, SIGMET K T T Tornado warning K T X Other warnings   T1 = K - CREX T2 = U - Upper air   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K U A Single level aircraft reports (automatic) AMDAR 004/000 K U A Single level aircraft reports (manual) AIREP/PIREP 004/001 K U B Single level balloon reports n/a K U C Single level satellite-derived reports SAREP 005/000 K U D Dropsonde/dropwindsondes TEMP DROP 002/007 K U E   Ozone vertical sounding   008/001 K U I Dispersal and transport analysis n/a 009/000 K U J 01-19 Upper wind from fixed land stations (parts A, B, C and D) PILOT 002/001 K U J 20-39 Upper wind from mobile land stations (parts A, B, C and D) PILOT MOBIL 002/003 K U J 40-59 Upper wind from marine stations (parts A, B, C and D) PILOT SHIP 002/002 K U K 01-19 Radio soundings from fixed land stations (parts A and B) TEMP 002/004 K U K 20-39 Radio soundings from mobile land stations (parts A and B) TEMP MOBIL 002/006 K U K 40-59 Radio soundings from marine stations (parts A and B) TEMP SHIP 002/005 K U L Total ozone n/a 008/002 K U M Model derived sondes K U N Rocketsondes K U O Profiles of aircraft observations in ascending /descending AMDAR 002/020 K U P Profilers PILOT 002/010 K U Q RASS temperature profilers TEMP 002/011 K U S 01-19 Radiosondes/pibal reports from fixed land stations (parts A, B, C and D) TEMP 002/004 K U S 20-39 Radio soundings from mobile land stations (parts A, B, C and D) TEMP MOBIL 002/006 K U S 40-59 Radio soundings from marine stations (parts A, B, C and D) TEMP SHIP 002/005 K U T Satellite derived sondes K U U 01-45 Monthly statistics of data from upper-air stations CLIMAT TEMP 002/025 K U U 01-45 Monthly statistics of data from upper-air stations CLIMAT TEMP 002/025 K U U 46-59 Monthly statistics of data from marine stations CLIMAT TEMP, SHIP 002/026 K U W 01-19 Upper wind from fixed land stations (parts A and B) PILOT 002/001 K U W 20-39 Upper wind from mobile land stations (parts A and B) PILOT MOBIL 002/003 K U W 40-59 Upper wind from marine stations (parts A and B) PILOT SHIP 002/002 K U X Other upper air reports   T1 = K - CREX T2 = V - Upper air   T1 T2 A1 ii Data type TAC correspondence Data Category Sub Category (Common Table C13) K V A Forecast at single levels K V B Coded SIGWX, Embedded Cumulonimbus K V C CREX coded SIGWX, Clear air turbulence K V F CREX coded SIGWX, Fronts K V N CREX coded SIGWX, Other SIGWX parameters K V O CREX coded SIGWX, Turbulence K V S Forecast soundings K V T CREX coded SIGWX, Icing/Tropopause K V V CREX coded SIGWX, Tropical storms, sandstorms, volcanoes K V W CREX coded SIGWX, High-level winds K V X Other upper air forecasts

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