[ecco-support] [EXTERNAL] Daily heat budget in ECCOv4r4

[Wang, Ou (US 329B)]

Hi Ashneel,

The heat budget should be closed as on daily fields, but your plot did show the residual is too large. If you haven’t done so, I would suggest you test your script using the monthly fields for the same grid cell. This may help narrow down the cause of the problem.

Cheers,
Ou

From: <ecco-support-bounces at mit.edu> on behalf of Ashneel Chandra <Ashneel.Chandra at uib.no>
Reply-To: "ECCO support list, wider membership" <ecco-support at mit.edu>
Date: Friday, October 15, 2021 at 7:59 AM
To: "ecco-support at mit.edu" <ecco-support at mit.edu>
Subject: [EXTERNAL] [ecco-support] Daily heat budget in ECCOv4r4

Hi

I am interested in looking at daily heat budgets in ECCOv4r4 and came across the documentation on computing heat budgets tailored for ECCOv4r3 monthly data.
I was able to modify the Matlab script to work with daily data and for the period (2005 – 2015). However, the residual (LHS - RHS of the heat budget) is of comparable magnitude to the temperature tendency (LHS) (see attached figure for a test grid cell). Maybe there is an error in my script which I overlooked (please see attached Matlab script).
I understand that ideally the residual should be just due to rounding errors as papers using the ECCO monthly data I have come across have closed heat budgets.
Is the heat budget closed on daily timesteps? I would assume it is closed at each model timestep.
Your assistance to help me close the daily heat budget will be highly appreciated.

Sincerely


Ashneel Chandra
PhD Candidate in Climate Dynamics
Geophysical Institute
University of Bergen
uib.no/en/persons/Ashneel.Chandra<https://urldefense.us/v3/__https:/www.uib.no/en/persons/Ashneel.Chandra__;!!PvBDto6Hs4WbVuu7!Ye7SkAEHrorvOk0wdtF5eFbERjPh9wBknUbtmEgXjhpjl8NgezGwtNIUgP7Gpou3SbQ$>


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