Comments (8)
Sounds good. I'll update the PR and include a note about the modifications.
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Thanks for the detailed description @minghangli-uni.
To be pedantic, the min depth in the OM2 0.25° 50-level grid is actually 11.805749893188477 m - will that matter?
If this needs to match exactly, it seems like we should have an automatic way to set MINIMUM_DEPTH
, so we don't need to remember to update it whenever we change the topography or number of depth levels.
from access-om3.
Thank you for pointing this out @aekiss.
As long as MIN_DEPTH
is between the MASKING_DEPTH=0.0
and the minimum depth (i.e., 11.805749893188477 m), the exact value of MIN_DEPTH
is not critical.
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Yes, I was just about to post that :-)
So when we change to 75 levels we'll need to adjust MIN_DEPTH
to suit the minimum we set in the updated topography.
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Actually, it would be simpler to set
MINIMUM_DEPTH = 0.0 ! [m] default = 0.0
! If MASKING_DEPTH is unspecified, then anything shallower than MINIMUM_DEPTH is
! assumed to be land and all fluxes are masked out. If MASKING_DEPTH is
! specified, then all depths shallower than MINIMUM_DEPTH but deeper than
! MASKING_DEPTH are rounded to MINIMUM_DEPTH.
MASKING_DEPTH = 0.0 ! [m] default = -9999.0
! The depth below which to mask points as land points, for which all fluxes are
! zeroed out. MASKING_DEPTH is ignored if it has the special default value.
and set the minimum depth when we generate topog.nc
with topogtools min_max_depth
, right?
I think that's what we meant in the namelist discussion.
from access-om3.
Yes, I agree. Setting MINIMUM_DEPTH
to 0.0 is simpler.
Bur it appears that if MASKING_DEPTH
has its default value of -9999, it is automatically set to the same value as MINIMUM_DEPTH
.
if (mask_depth == -9999.*US%m_to_Z) mask_depth = min_depth
Since the default value of MINIMUM_DEPTH
is 0, there is no need to configure these two parameters in the MOM_input
.
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That would be even simpler, so I'm tempted to omit both parameters from MOM_input
. Does that sound ok? MASKING_DEPTH = -9999 is the default, even though the comments say it's not the preferred approach.
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ACCESS-NRI/access-om3-configs#78 is merged.
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Related Issues (20)
- Alignment with OMIP for CMIP7
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- Update components for v0.4.0 HOT 8
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- Update configurations for changed input location
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