NTR: Fluorescent dissolved organic matter (FDOM)

[danibodc]

We received a request for a new P01 term for fluorescent dissolved organic matter (FDOM) from a WET Labs {Sea-Bird WETLabs} SeaOWL UV-A Sea Oil-in-Water Locator deployed on a glider. There has been some internal discussion r.e. CDOM vs FDOM, and whether they are two separate entities. The P01 has now been created as https://vocab.nerc.ac.uk/collection/P01/current/QSCDOMX1/.

A new OG1 term is now required to make a clear distinction between FDOM and CDOM measurements, mapped to the new P01 term.

Required

Term name (PrefLabel)

Concentration of coloured dissolved organic matter expressed as quinine sulphate equivalent in seawater

Definition

The quantity of the optically measurable component of coloured (chromophoric) dissolved organic matter (CDOM) that fluoresces when excited with near ultra-violet (UV) light, measured in a unit volume of salt water by calibration against a quinine sulphate proxy. Often referred to as fluorescent dissolved organic matter (FDOM) when expressed as quinine sulphate equivalent.

Sources/references

NA

Optional

Synonym or acronym (AltLabel)

FDOM

Mapping to external terminologies

https://vocab.nerc.ac.uk/collection/P01/current/QSCDOMX1/

ORCID

[Enter your ORCID if desired]

[emmerbodc]

Discussed in OG vocab meeting 06/09/24 Agreed to this with FDOM in preferred label

[danibodc]

This term has now been loaded and will be live on the NVS from tomorrow morning.

FDOM Concentration of coloured dissolved organic matter expressed as quinine sulphate equivalent (FDOM) in seawater

[danibodc]

https://vocab.nerc.ac.uk/collection/OG1/current/FDOM/