Opened 9 years ago

Closed 4 years ago

#45 closed enhancement (fixed)

Water limitation in diffuco_trans_co2

Reported by: dsolyga Owned by: nicolasviovy
Priority: minor Milestone:
Component: Biogeochemical processes Version: orchidee_1_9_6
Keywords: water stress, diffuco Cc: nviovy

Description

The following formulation used to calculate water limitation in diffuco :

      WHERE ( assimilate(:) )
        water_lim(:) = MIN( 2.*humrel(:,jv), un )
      ENDWHERE

could be replaced by the formulation used in the Assimilation branch :

WHERE ( assimilate(:) )
      water_lim(:) = 2./(1+EXP(-opti_fstressh(jv)*humrel(:,jv)))-1.
ENDWHERE

Implementation

Need to add a new pft parameter called opti_fstressh and maybe the externalization of the scalar parameters equations in the new formulation.

Tests

Study the differences between the 2 formulations.

Change History (3)

comment:1 Changed 8 years ago by peylin

  • Owner changed from somebody to nicolasviovy
  • Status changed from new to assigned

comment:2 Changed 8 years ago by nicolasviovy

  • Status changed from assigned to accepted

comment:3 Changed 4 years ago by nicolasviovy

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

obsolete, the new photosynthesis use a new formulatio

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