[MITgcm-support] what happens when run is shorter than diagnostic averaging frequency

[Daniel Goldberg]

Hello All

This might be a very basic question but i can't figure it out from looking at the code.

I am using the frequency() parameter in data.diagnostics with a value > 0, and NOT using timephase() or averagingFreq(). For experiment-specific reasons I am restarting from a pickup on a frequency shorter than the diagnostic frequency, i.e.

frequency(1) = 2592000

but the length of each run i.e. nTimesteps * deltaT = 432000.

So, every 6th run, a diagnostics file is written, for a run that is 5 days long, with an averaging period of 30 days (Im using a model calendar if it matters). I am just wondering what diagnostics will do in this case. When a diagnostics file is written, will it average only over the last 5 days? Will it do so, but give a value that is 6 times too small?

Many thanks! As I said, apologies if this should be obvious from the docs!

dan

--
Daniel Goldberg, PhD (he/him)
Reader in Glaciology
School of Geosciences, University of Edinburgh
Geography Building, Drummond Street, Edinburgh EH8 9XP

Please note I am not working Mondays during June/July/August 2023 due to childcare responsibility.

The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. Is e buidheann carthannais a th' ann an Oilthigh Dhùn Èideann, clàraichte an Alba, àireamh clàraidh SC005336.
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