[MITgcm-support] add stochastic forcing in surface fluxes

[Olivier Arzel]

Hello all

I would like to add stochastic forcing to prescribed surface fluxes.

The stochastic forcing is build here from white noise using random numbers
picked up from a normal distribution and a specified autocorrelation
timescale.

The easiest way to do it in the model would be to read the forcing files
(which contain both the prescribed and stochastic parts) (for example
surfQFile for the heat flux) every n timesteps (n small). Unfortunately,
the size of these forcing files in this case is too big for simulations of
typically > 100 years.

The other possibility would be to first read the prescribed part using
'surfQFile', then compute the stochastic part online, and finally add it to
the prescribed flux. What is the routine I need to modify to do this, and
has this been attempted before ?

Thank you,

Olivier
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20171226/92871ac3/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 16066 bytes
Desc: not available
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20171226/92871ac3/attachment.png>