About data format

1.      TRAMS 18KM  (upgrade TRAMS from 36km to 18km since 2016092000UTC)

Product interval: four times a day.

00 & 12 UTC:  7-day forecast, every 3h.

06 & 18 UTC:  3-day forecast, every 3h.

Product resolution: 0.18° x 0.18° lat/long grid 

Grids: 441*277

Area: 50.48°N 81.6°E 0.8°N160.8°E

File format: GRIB2

File name: GRMC_GZLM_yyyymmddhhHHH.grb2

Parameter:

Single level – forecast:

Short name

Long name

Unit

PSL

Mean sea level pressure

hPa

RAINC

Convective precipitation

mm

RAINNC

Large scale precipitation

mm

TS

Temperature of the surface

K

Q2M

specific humidity at 2 metre

kg/kg

T2M

2 metre temperature

K

U10M

10 metre U-velocity

m/s

V10M

10 metre V-velocity

m/s

Pressure level –Forecast:

All parameters are available at levels 1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10 hPa

Short name

Long name

Unit

U

U-velocity

m/s

V

V-velocity

m/s

T

Temperature

K

GH

Geopotential height

m

QV

Specific humidity

kg/kg

W

Vertical velocity

m/s

 

2.      TRAMS 9KM

Product interval: four times a day(00,06,12,18UTC), 3-day forecast, every 3h.

Product resolution: 0.09° x 0.09° lat/long grid 

Grids: 385*305

Area: located the position of typhoon as the centre of the model

File format: GRIB2

File name: GRMC_GZTM_yyyymmddhhHHH.grb2

Parameter:

Single level – forecast:

Short name

Long name

Unit

PSL

Mean sea level pressure

hPa

RAINC

Convective precipitation

mm

RAINNC

Large scale precipitation

mm

TS

Temperature of the surface

K

Q2M

specific humidity at 2 metre

kg/kg

T2M

2 metre temperature

K

U10M

10 metre U-velocity

m/s

V10M

10 metre V-velocity

m/s

Pressure level –Forecast:

All parameters are available at levels 1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10 hPa

Short name

Long name

Unit

U

U-velocity

m/s

V

V-velocity

m/s

T

Temperature

K

GH

Geopotential height

m

QV

Specific humidity

kg/kg

W

Vertical velocity

m/s

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