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Dear ECCO support,<br>
<br>
I am trying to estimate the different components of the surface
freshwater flux balance from ECCO v4r4 and I am wondering if you
could maybe help me with clarifying some issues that I have.<br>
<br>
A colleague of mine estimated the total surface salt flux variations
from SFLUX and I am trying to explain its variability from the
different components of the surface freshwater fluxes. However, the
sum of the ocean freshwater fluxes does not match the interannual
variability in the salt flux. My main problems are (1) that I am not
quite sure which freshwater flux is being used to obtain SFLUX and
would be the equivalent and (2) how to estimate the sea-ice--ocean
flux component.<br>
<br>
In terms of (1) there are three variables in the documentation that
are referred to as total ocean freshwater flux: oceFWflx, EXFempmr,
SIempmr. Which one should I use to match SFLUX? How is SFLUX in the
model being calculated from the surface freshwater flux? SIempmr
seems to be missing from the output files (nctiles_monthly) on the
ECCO Drive in v4r4.<br>
<br>
In terms of (2), a colleague of mine recommended me to calculate the
sea-ice--ocean flux as -SIempmr- (SIatmFW-SIsnPrcp). However, for
this calculation I would missing the SIempmr from the output. Would
that in principal be correct? I have tried to calculate it as
oceFWflx-SIatmFW, which looks reasonable in terms of spatial pattern
but the variability does not match the SFLUX variability. So, I am
skeptical that this is the correct approach.<br>
<br>
Thank you very much for your time and help.<br>
<br>
Best wishes,<br>
Alex<br>
<br>
<br>
<div class="moz-signature">-- <br>
<br>
Dr. F. Alexander Haumann, Associate Research Scholar<br>
Atmospheric and Oceanic Sciences, <b><font color="#ff6600">Princeton</font>
University</b><br>
& British Antarctic Survey Honorary Researcher<br>
<a href="https://www.ahaumann.net">https://www.ahaumann.net</a><br>
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