Hi all,
This is a request to have a new standard_name added to the CF table for the
following parameter:
standard_name: colored_dissolved_organic_matter
alias: chromophoric_dissolved_organic_matter
alias: cdom
units: QSDE
CDOM plays an important role in the carbon cycling and biogeochemistry of
coastal waters. It occurs naturally in aquatic environments primarily as a
result of tannins released from decaying plant and animal matter, which can
enter coastal areas in river run-off containing organic materials leached
from soils. When present in high concentrations, it imparts a brown or
yellowish color to water. Its presence can negatively impact fish
populations by reducing dissolved oxygen concentrations to harmful levels
and by releasing nutrients and metals that contaminate the water. Increased
understanding of the role of CDOM will further our ability to manage and
protect coastal ecosystems.
More about the units (QSDE):
Sensors are commonly calibrated against a 100 parts per billion (ppb)
quinine sulfate dihydrate solution, a fluorescent reference standard
commonly used with CDOM sensors. CDOM sensors therefore report in "QSDE"
(quinine sulfate dihydrate equivalents). It is important to note, however,
that CDOM concentrations in QSDE are not necessarily equivalent to the *in
situ* CDOM concentrations in ppb.
Thanks,
John Maurer
Pacific Islands Ocean Observing System (PacIOOS)
University of Hawaii at Manoa
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <
http://mailman.cgd.ucar.edu/pipermail/cf-metadata/attachments/20160323/1077bfae/attachment.html>
Received on Wed Mar 23 2016 - 13:12:28 GMT
