WORLD METEOROLOGICAL ORGANIZATION
COMMISSION FOR BASIC SYSTEMS
MEETING OF EXPERT TEAM ON DATA
REPRESENTATION AND CODES
ET DR&C/Doc. 2.1.3(1)
(15.XI.2005)
MUSCAT, OMAN, 5 - 8 DECEMBER 2005
ENGLISH ONLY
Parameters for GEMS in GRIB 2
Submitted by Milan Dragosavac (ECMWF)
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Summary and Purpose of Document
This document proposes the inclusion of the new parameters in the GRIB 2
________________________________________________________________
ACTION PROPOSED
The ET DR&C meeting is kindly asked to consider the proposed
requirements.
1. New parameters
Product Discipline 0: Meteorological products, Parameter Category 13: Aerosols
The following parameters are planned to be used in the GEMS project as the model output
parameters in GRIB 2.
Table
code
210
210
210
210
210
210
210
210
210
210
210
210
210
Originating
centre
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
210
ECMWF
17
210
ECMWF
18
210
ECMWF
19
210
ECMWF
20
210
ECMWF
21
210
ECMWF
22
210
ECMWF
23
Parameter
1
2
3
4
5
6
7
8
9
10
11
12
16
Long name
Aerosol type 1 mixing ratio
Aerosol type 2 mixing ratio
Aerosol type 3 mixing ratio
Aerosol type 4 mixing ratio
Aerosol type 5 mixing ratio
Aerosol type 6 mixing ratio
Aerosol type 7 mixing ratio
Aerosol type 8 mixing ratio
Aerosol type 9 mixing ratio
Aerosol type 10 mixing ratio
Aerosol type 11 mixing ratio
Aerosol type 12 mixing ratio
Aerosol type 1 source/gain
accumulated
Aerosol type 2 source/gain
accumulated
Aerosol type 3 source/gain
accumulated
Aerosol type 4 source/gain
accumulated
Aerosol type 5 source/gain
accumulated
Aerosol type 6 source/gain
accumulated
Aerosol type 7 source/gain
accumulated
Aerosol type 8 source/gain
2
Unit
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg kg**-1
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
210
ECMWF
24
210
ECMWF
25
210
ECMWF
26
210
ECMWF
27
210
ECMWF
31
210
ECMWF
32
210
ECMWF
33
210
ECMWF
34
210
ECMWF
35
210
ECMWF
36
210
ECMWF
37
210
ECMWF
38
210
ECMWF
39
210
ECMWF
40
210
ECMWF
41
210
ECMWF
42
210
210
210
210
210
210
210
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
46
47
48
49
50
51
52
accumulated
Aerosol type 9 source/gain
accumulated
Aerosol type 10 source/gain
accumulated
Aerosol type 11 source/gain
accumulated
Aerosol type 12 source/gain
accumulated
Aerosol type 1 sink/loss
accumulated
Aerosol type 2 sink/loss
accumulated
Aerosol type 3 sink/loss
accumulated
Aerosol type 4 sink/loss
accumulated
Aerosol type 5 sink/loss
accumulated
Aerosol type 6 sink/loss
accumulated
Aerosol type 7 sink/loss
accumulated
Aerosol type 8 sink/loss
accumulated
Aerosol type 9 sink/loss
accumulated
Aerosol type 10 sink/loss
accumulated
Aerosol type 11 sink/loss
accumulated
Aerosol type 12 sink/loss
accumulated
Aerosol precursor mixing ratio
Aerosol small mode mixing ratio
Aerosol large mode mixing ratio
Aerosol precursor optical depth
Aerosol small mode optical depth
Aerosol large mode optical depth
Dust emission potential
210
210
ECMWF
ECMWF
53
54
Lifting threshold speed
Soil clay content
3
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg m**-2
kg kg**-1
kg kg**-1
kg kg**-1
dimensionless
dimensionless
dimensionless
kg s**2 m**5
m s**-1
%
210
210
210
210
210
210
210
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
61
62
63
64
65
66
67
210
ECMWF
68
210
ECMWF
69
210
210
210
210
210
210
210
210
210
210
210
210
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
ECMWF
121
122
123
124
125
126
127
128
181
182
183
184
210
ECMWF
185
210
210
ECMWF
ECMWF
203
206
Carbon Dioxide
Methane
Nitrous oxide
Total column Carbon Dioxide
Total column Methane
Total column Nitrous oxide
Ocean flux of Carbon Dioxide
kg kg**-1
kg kg**-1
kg kg**-1
kg m**-2
kg m**-2
kg m**-2
kg m**-2
s**-1
Natural biosphere flux of Carbon kg m**-2
Dioxide
s**-1
Anthropogenic emissions of
kg m**-2
Carbon Dioxide
s**-1
Nitrogen dioxide
kg kg**-1
Sulphur dioxide
kg kg**-1
Carbon monoxide
kg kg**-1
Formaldehyde
kg kg**-1
Total column Nitrogen dioxide
kg m**-2
Total column Sulphur dioxide
kg m**-2
Total column Carbon monoxide kg m**-2
Total column Formaldehyde
kg m**-2
Radon
kg kg**-1
Sulphur Hexafluoride
kg kg**-1
Total column Radon
kg m**-2
Total column Sulphur
kg m**-2
Hexafluoride
Anthropogenic Emissions of
kg m**-2
Sulphur Hexafluoride
s**-1
GEMS Ozone
kg kg**-1
GEMS Total column ozone
kg m**-2
The Team is kindly asked to consider the proposal. Although the ECMWF is going to use those
parameters, it is not clear if the consensus within the scientific community is reached about the
aerosol types and therefore there is no urgent need to standardize those entries.
4