The HOXG70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (G): 36 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 36 (GLOBAL MODEL) VERTICAL VELOCITY 700 HPA)

The HTXH98 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H98): Air priorities for the Earth's surface (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) TEMPERATURE 2 METRES)

The HRXH50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HR): Relative humidity A1 (X): Global Area (area not definable) A2 (H): 42 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 42 (GLOBAL MODEL) RELATIVE HUMIDITY 500 HPA)

The HPXM89 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HP): Pressure A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H89): Any parameter reduced to sea level (eg MSLP) (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) MEAN SEA LEVEL PRESSURE)

The HUXW85 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (W): Not assigned T1ii (H85): 850 hPa (Remarks from Volume-C: H+ 54 (GLOBAL MODEL) WIND COMPONENT 850 HPA)

The HOXK70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HO): Vertical velocity A1 (X): Global Area (area not definable) A2 (K): 72 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 72 (GLOBAL MODEL) VERTICAL VELOCITY 700 HPA)

The HVXF40 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HV): Northward wind component A1 (X): Global Area (area not definable) A2 (F): 30 hours forecast T1ii (H40): 400 hPa (Remarks from Volume-C: H+ 30 (GLOBAL MODEL) WIND COMPONENT 400 HPA)

The HHXB10 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HH): Height A1 (X): Global Area (area not definable) A2 (B): 6 hours forecast T1ii (H10): 100 hPa (Remarks from Volume-C: H+ 06 (GLOBAL MODEL) HEIGHT 100 HPA)

The HUXM70 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HU): Eastward wind component A1 (X): Global Area (area not definable) A2 (M): 96 hours forecast T1ii (H70): 700 hPa (Remarks from Volume-C: H+ 96 (GLOBAL MODEL) WIND COMPONENT 700 HPA)

The HTXF50 TTAAii Data Designators decode as: T1 (H): Grid point information (GRIB) T1T2 (HT): Temperature A1 (X): Global Area (area not definable) A2 (F): 30 hours forecast T1ii (H50): 500 hPa (Remarks from Volume-C: H+ 30 (GLOBAL MODEL) TEMPERATURE 500 HPA)