Code Table 4.2 : adding new parameters

[sebvi]

Initial request

ECMWF is requesting new parameters to support the development of new products in the context of the Destination Earth project.

Amendment details

EDITORIAL CHANGE to code table 4.2 discipline 1 (hydrology), category 0 basic products

remove "depth of" from entry 13

Code	Meaning	Units
13	~depth of~ water on soil surface	kg m**-2

ADD to code table 4.2 discipline 1 (hydrology), category 0 basic products

Code	Meaning	Units
20	water on surface	kg m**-2

ADD to Code table 4.2 discipline 10 (oceanography), category 2 Ice

Code	Meaning	Units
26	Sea ice salinity	g kg**-1

ADD to code table 4.5

Code	Meaning	Units
19	Lowest level where cloud cover exceeds the specified percentage	%

Comments

No response

Requestor(s)

Sebastien Villaume (ECMWF)

Stakeholder(s)

ECMWF

Publication(s)

Manual on Codes (WMO-No. 306), Volume I.2, GRIB code table 4.2, discipline 10, category 2

Expected impact of change

None

Collaborators

Robert Osinski (ECMWF), Matthew Griffith (ECMWF)

References

No response

Validation

No response

[amilan17]

https://github.com/wmo-im/CCT/wiki/20.to.22.September.2023 notes:

team agrees, more parameters might be added to this issue, use the units as they are described in C6

[amilan17]

https://github.com/wmo-im/CCT/wiki/Teleconference.21.22.November.2023 notes:

• Sebastien presented the new codes added to proposal (since last meeting); Sebastien will try to find a better name than "Depth of water on surface";

[amilan17]

https://github.com/wmo-im/CCT/wiki/Teleconference.21.29.November.2023 notes:

(Sebastien) original name was intended to be similar with a different code for "depth of water on soil surface" with kg/m2; decision: do'n't use depth and remove depth from code 13; Sebastien will update issue summary;

[sebvi]

issue updated to reflect decision from the 29th November meeting

branch updated and ready for validation/merging

[amilan17]

https://github.com/wmo-im/CCT/wiki/Teleconference.10.January.2024 notes:

Sebastien updated the branch; @amilan17 to validate branch;