table 5-02-05 add: Stream Index-Velocity Rating, Acoustic Doppler Velocity Meter (ADVM)

[jbianchi81]

Initial request

This complements the proposal for the new variable stream index velocity.

Amendment details

notation	path	name	description
new	hydrological, discharge, equation	stream index-velocity rating	Computation of stream discharge based on a relation between stream index velocity and average velocity (index-velocity rating) and a relation between stage and cross-sectional area (stage-area rating). Given these ratings and concurrent observations of stream index velocity and stage, average velocity and area are computed and finally discharge as their product. [Based on Manual on Stream Gauging (WMO No. 1044), volume I]
new	hydrological, velocity, acoustic, doppler	acoustic doppler velocity meter (ADVM)	Determination of water velocity by using the Doppler principle applied to sound transmitted under water, in which the instrument is mounted in a fixed position under the water, giving an index velocity for a significant part of the flowing stream. [Based on Manual on Stream Gauging (WMO No. 1044), volume I]

Comments

No response

Requestor(s)

JET-HYDMON

Stakeholder(s)

The hydrological community

Publication(s)

Manual on Codes (WMO-No. 306), Volume I.3, WMO Codes Registry, Code table 5-02-05, Measurement/observing method (terrestrial and hydrological). http://codes.wmo.int/wmdr/_ObservingMethodTerrestrial

Expected impact of change

LOW

Collaborators

@amilan17, @jbianchi81, @disiiwash, @jkorhonen, José Valles, Paolo Leoni, Joao Carlos Carvalho (JET-HYDMON)

References

https://library.wmo.int/doc_num.php?explnum_id=219

Validation

No response

[amilan17]

https://github.com/wmo-im/tt-wigosmd/wiki/2023.01.12-TT-WIGOSMD notes:
@jbianchi81 update branch

[amilan17]

@jbianchi81 if/when the branch is ready for my review, please open a PR to merge into the FT2023-1 branch