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#1732 (Phytoplankton growth under sea-ice in PISCES) – NEMO

Opened 8 years ago

Closed 8 years ago

#1732 closed Enhancement (fixed)

Phytoplankton growth under sea-ice in PISCES

Reported by: aumont Owned by: nemo
Priority: low Milestone:
Component: TOP Version: v3.6
Severity: Keywords: PISCES
Cc:

Description

Context

Sea-ice impacts the amount of PAR that reaches the surface of the ocean. Because the sea-ice concentration in a grid cell represents the average of the sea-ice extent over that grid cell, a specific treatment should be embedded in biogeochemical models.

Analysis

The current scheme in PISCES uses the average PAR that is computed in the sea-ice model. As a consequence, it assumes that PAR is identical in the sea-ice covered part of the grid-cell and in the ice-free ocean within the same grid cell. Currently, PISCES computes PP from the mean PAR over the grid cell which is different (larger) than the average of the PP over the grid cell (see Long et al., 2015).

Fix

See attached routines.

Commit History (2)

ChangesetAuthorTimeChangeLog
6628cetlod2016-05-26T11:54:20+02:00

trunk:Bugfix on phytoplankton growth in PISCES, see ticket #1732

6627cetlod2016-05-26T11:42:38+02:00

v3.6stable:Bugfix on phytoplankton growth in PISCES, see ticket #1732

Attachments (2)

p4zprod.F90 (31.5 KB) - added by aumont 8 years ago.
p4zopt.F90 (19.6 KB) - added by aumont 8 years ago.

Download all attachments as: .zip

Change History (3)

Changed 8 years ago by aumont

Changed 8 years ago by aumont

comment:1 Changed 8 years ago by cetlod

  • Component changed from OPA to TOP
  • Resolution set to fixed
  • Status changed from new to closed

Bugfix done in 3.6 stable & trunk

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