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#2507 (PAR output averaged on free-of-ice cell area) – NEMO

#2507 closed Bug (fixed)

PAR output averaged on free-of-ice cell area

Reported by: cperruche Owned by: systeam
Priority: low Milestone:
Component: TOP Version:
Severity: minor Keywords:
Cc:

Description

Context

In p4zopt.F90, PAR is computed on the part of the cell that is free of ice. Below sea ice, it is assumed that there is no primary production

Analysis

But when we save it in output "PAR", I think it should be multiplied by the fraction of free-of-ice water to get the PAR mean over the whole cell

Fix

CALL iom_put( "PARDM", zpar(:,:,:) * tmask(:,:,:) * (1-fr_i(:,:)) )  ! Photosynthetically Available Radiation
CALL iom_put( "PAR"  , emoy(:,:,:) * tmask(:,:,:) * (1-fr_i(:,:)) )  ! Photosynthetically Available Radiation

instead of

CALL iom_put( "PARDM", zpar(:,:,:) * tmask(:,:,:) )  ! Photosynthetically Available Radiation
CALL iom_put( "PAR"  , emoy(:,:,:) * tmask(:,:,:) )  ! Photosynthetically Available Radiation

Commit History (2)

ChangesetAuthorTimeChangeLog
14209cetlod2020-12-18T10:53:36+01:00

trunk : bugfix to diagnose PAR in PISCES as a mean over the whole cell, see ticket #2507

14208cetlod2020-12-18T10:50:15+01:00

r4.0-HEAD : bugfix to diagnose PAR in PISCES as a mean over the whole cell, see ticket #2507

Change History (3)

comment:1 Changed 17 months ago by cetlod

In 14208:

Error: Failed to load processor CommitTicketReference
No macro or processor named 'CommitTicketReference' found

comment:2 Changed 17 months ago by cetlod

In 14209:

Error: Failed to load processor CommitTicketReference
No macro or processor named 'CommitTicketReference' found

comment:3 Changed 15 months ago by clem

  • Resolution set to fixed
  • Status changed from new to closed
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