GRIB2 - TABLE 4.2-3-1

PARAMETERS FOR DISCIPLINE 3
CATEGORY 1

(Space products, Quantitative category)

In Section 0, Octet 7 = 3
In Section 4, Octet 10 = 1

Revised 12/07/2023
Red text depicts changes made since 10/30/2023


Number
(In Section 4, octet 11)
 Parameter Units
 Abbrev
0
 Estimated Precipitation
 kg m-2
 ESTP
1
 Instantaneous Rain Rate
 kg m-2 s-1
 IRRATE
2
 Cloud Top Height
 m
 CTOPH
3
 Cloud Top Height Quality Indicator
 Code table 4.219 CTOPHQI
4
 Estimated u-Component of Wind
 m s-1
 ESTUGRD
5
 Estimated v-Component of Wind
 m s-1
 ESTVGRD
6
 Number Of Pixels Used Numeric NPIXU
7
 Solar Zenith Angle ° SOLZA
8
 Relative Azimuth Angle ° RAZA
9
 Reflectance in 0.6 Micron Channel % RFL06
10
 Reflectance in 0.8 Micron Channel % RFL08
11
 Reflectance in 1.6 Micron Channel % RFL16
12
 Reflectance in 3.9 Micron Channel % RFL39
13
 Atmospheric Divergence s-1 ATMDIV
14
 Cloudy Brightness Temperature K CBTMP
15
 Clear Sky Brightness Temperature K CSBTMP
16
 Cloudy Radiance (with respect to wave number) W m-1 sr-1 CLDRAD
17
 Clear Sky Radiance (with respect to wave number) W m-1 sr-1 CSKYRAD
18 Reserved

19
 Wind Speed m s-1 WINDS
20
 Aerosol Optical Thickness at 0.635 µm
AOT06
21
 Aerosol Optical Thickness at 0.810 µm
AOT08
22
 Aerosol Optical Thickness at 1.640 µm
AOT16
23
 Angstrom Coefficient
ANGCOE
24-26 Reserved

27 Bidirectional Reflecance Factor (See Note 1) Numeric BRFLF
28 Brightness Temperature K SPBRT
29 Scaled Radiance (See Note 2) Numeric SCRAD
30 Reflectance in 0.4 Micron Channel % RFL04
31 Cloudy reflectance % CLDREF
32 Clear reflectance % CLRREF
33-97 Reserved

98 Correlation coefficient between MPE rain rates for the co-located IR
data and the microwave data rain rates		 Numeric CCMPEMRR
99 Standard deviation between MPE rain rates for the co-located IR
data and the microwave data rain rates		 Numeric SDMPEMRR
100-191 Reserved

192-254 Reserved for Local Use

192
 Scatterometer Estimated U Wind Component
 m s-1
 USCT
193 Scatterometer Estimated V Wind Component m s-1 VSCT
194 Scatterometer Wind Quality
SWQI
255
 Missing


Notes:

(1) The ratio of the radiant flux reflected by a surface to that reflected into the same reflected-beam geometry and wavelength range by an ideal (lossless) and diffuse (Lambertian) standard surface, irradiated under the same conditions.

(2) Top of atmostphere radiance observed by a sensor, multiplied by pi divided by the in-band solar irradiance.


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