Modern day (default) mk_ocn_grid settings?

[michelle_dvorak]

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[michelle_dvorak]

Hello, sorry for the accidental post without content. My question is here.

I am attempting to create a new "paleoclimate" simulation in which I'm making a change only to a localized portion of the modern day topography (ice sheet and bathymetry of Antarctica). I am relying on the CESM1.2 PaleoTookit and instructions to guide me.

First, I want to make sure that I am running these scripts correctly by creating a gx1v6 ocean grid for the modern-day from scratch. However, just running the mk_ocn_1x1_template.csh script using an ETOPO1 modern topography + bathymetry file (which I've interpolated onto 0.5x0.5 grid) gives me weird pole placements, and the output continental configuration and grid looks nothing like the standard piControl pop output (also from gx1v6) (should it?).

My question is, firstly, where should I place the poles (latnp, latsp etc.), and should I make any other changes to nlatn, nlats, nx, nz etc. to perfectly reproduce the modern day ocean grid?

Secondly, the instructions note that the bathymetry needs to be 0.5x0.5 degrees. But, the change I want to implement will need to be at 1x1 degrees. Will this work?

Lastly, will I ultimately be able to use the gx1v6 grid and mapping files that I create (using this routine) with CESM2?

Thank you!