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Have datm send ndep to surface components #3549

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ekluzek opened this issue May 27, 2020 · 1 comment
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Have datm send ndep to surface components #3549

ekluzek opened this issue May 27, 2020 · 1 comment
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Low Priority st: wontfix tp: data models ty: enhancement

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@ekluzek
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ekluzek commented May 27, 2020

Both CLM and the ocean model need Nitrogen deposition to be sent in. We've handled this by having it sent in by CAM when WACCM is run -- but having each surface component handle prescribed datasets themselves. This means that OCN and LND could have inconsistent datasets. And it also leads to certain problems when surface components don't know if ndep is provided by the ATM model or not (see for example: ESCOMP/CTSM#946). Since, ndep physically is something in the atmosphere, it makes the most sense if ndep would ALWAYS be provided by the ATM component just like prescribed aerosols are now.

The CAM issue that relates to this is here:

ESCOMP/CAM#104

Once, CAM is able to send ndep, the surface components could stop having to prescribe it and just always rely on what is being sent from that ATM component.
@ekluzek ekluzek mentioned this issue May 27, 2020
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WesCoomber pushed a commit that referenced this issue May 27, 2020
@wlin7
Merge ambrad/eam/pg2-v2-rrm-compset (PR #3549)
0bd69da 
EAM: ne0np4_northamericax4v1.pg2_r0125_ne0np4_northamericax4v1.pg2 config

This is the theta-SL-pg2 configuration for resolution
ne0np4_northamericax4v1.pg2_r0125_ne0np4_northamericax4v1.pg2
with ocean mask oRRS15to5. It includes configurations for:

  . topography file
  . atmsrf file
  . map and domain files
  . theta-l defaults for this RRM grid.

[BFB]
@ekluzek ekluzek mentioned this issue Dec 18, 2020
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@billsacks billsacks mentioned this issue Dec 18, 2020
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At least within CESM, there's no value in solving this within the mct data models any more, so I have opened this issue in CDEPS: ESCOMP/CDEPS#36

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