Table 5-02-01, add descriptions
Closed this issue · 5 comments
Initial request
add descriptions to existing codes, this was originally a part of issue #336
Amendment details
| notation | path | name | description |
|---|---|---|---|
| 190 | /Atmosphere/Visual range/Remote-sensing, active/ | Scatterometer | Visual range is calculated by measuring the return of light beam scattered by diffusion in air. |
| 207 | /Atmosphere/Visual range/Remote-sensing, active/ | Transmissometer | Visual range is calculated by measuring the extinction coefficient of a beam of energy passing through a volume of air. |
| 24 | /Atmosphere/Clouds/ | Human observation | Observation of clouds from the Earth's surface by a human observer (ref: https://cloudatlas.wmo.int/en/observation-of-clouds-from-the-earths-surface.html) |
Comments
No response
Requestor(s)
TT-WIGOSMD
Stakeholder(s)
Enter list of stakeholder(s).
Publication(s)
Example: Manual on Codes (WMO-No. 306), Volume I.3, WMO Codes Registry
Expected impact of change
None
Collaborators
No response
References
No response
Validation
No response
Both definitions to be harmonized because the technology and methods are comparable.
Visual range is only used for aeronautical practices: Runway Visual Range (RVR); Visual Range is for human beings, but subjective because a human beings vision qualities is undefined. Therefore, for meteorology the term visibility is used, which is equal to meteoprological optical range (MOR), which is a physical variable and uniquely related to the exctintion coefficient
190 | /Atmosphere/Visual range/Remote-sensing, active/ | Scatterometer | Visual range is calculated by measuring the return of light beam scattered by diffusion in air.
proposal: Visual range is calculated by measuring the return of light beam scattered by diffusion in air. --> Visibility, determined from the relative amount of light scattered by a volume of air.
207 | /Atmosphere/Visual range/Remote-sensing, active/ | Transmissometer | Visual range is calculated by measuring the extinction coefficient of a beam of energy sent through a volume of air.
proposal: Visual range is calculated by measuring the extinction coefficient of a beam of energy sent through a volume of air. --> Visibility, determined from the relative amount of light passing a volume of air.
I support this, with maybe a slight addition: ... passing [through] a volume of air.
passing (through) is fine
https://github.com/wmo-im/tt-wigosmd/wiki/2024.01.18-TT-WIGOSMD notes:
@meulenvd -- I updated the proposal. (see issue summary at the top). If these changes are approved by you and the team within a week or two, we can include this proposal in FT2024-1.
https://github.com/wmo-im/tt-wigosmd/wiki/2024.01.18-TT-WIGOSMD notes:
@meulenvd -- I updated the proposal. (see issue summary at the top). If these changes are approved by you and the team within a week or two, we can include this proposal in FT2024-1.
@amilan17 , @joergklausen - I think it's fine now.