[MITgcm-support] Running 'MLAdjust' test case

[Sanjiv Ramachandran]

Hi all,

          It appears my initial condition is incorrect for the no-wall case, which by default is periodic. My prescribed initial condition (a single front) is incompatible with periodic BCs. So, that explains why the two simulations were evolving quite differently.


Sanjiv


________________________________
From: MITgcm-support <mitgcm-support-bounces at mitgcm.org> on behalf of Sanjiv Ramachandran <sramachandran at umassd.edu>
Sent: Thursday, November 29, 2018 3:31 PM
To: mitgcm-support at mitgcm.org
Subject: [MITgcm-support] Running 'MLAdjust' test case


Hi all,

           I am trying to simulate the MLAdjust case after adapting the parameters (see attachment) to generate initial conditions more appropriate for the region of my interest. I am sharing a link below which shows the evolution of SSS over 40 days. The top row shows the evolution in a simulation with a wall at the southern and northern boundaries, the bottom row shows results from a simulation without any lateral wall. All other parameters are identical for the two simulations.


https://www.dropbox.com/s/mbphclfw5vjbfjq/S_walltest.pdf?dl=0


I am wondering why adding walls 60 km away from the front is resulting in such a different flow evolution at the front for the two simulations. To add the wall, I am uncommenting lines 90 and 91 in gendata_TS.m (attachment). Am I imposing the wall boundary condition correctly? Or is there something else I am missing?


Thanks,

Sanjiv
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