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#1388 (neutral drag coefficient / cyclones) – NEMO

Opened 10 years ago

Closed 10 years ago

#1388 closed Enhancement (fixed)

neutral drag coefficient / cyclones

Reported by: julienjouanno Owned by: gm
Priority: low Milestone:
Component: OCE Version: trunk
Severity: Keywords:
Cc:

Description

Neutral drag coefficient from Large and Yeager 2004 is not adapted to tropical cyclone forcing (key_cyclone), leading to very high (probably unrealistic) windstress under cyclones. One solution is to use Large and Yeager 2009 formulation.

In sbcblk_core.F90 and for TURB_CORE_2Z, I guess changes could be as follows :

! Large and Yeager 2009 formulation

WHERE (dU10 >= 33 )

Cd_n10 = 0.00234

ELSEWHERE

Cd_n10 = 1.e-3*( 2.7/dU10 + 0.142 + dU10/13.09 -3.14807e-10 * dU106 )

END WHERE

instead of

! Large and Yeager 2004 formulation

Cd_n10 = 1E-3*( 2.7/dU10 + 0.142 + dU10/13.09 )
Cd_n10 = 1E-3*( 2.7/dU10 + 0.142 + dU10/13.09 )

Julien

Commit History (0)

(No commits)

Change History (2)

comment:1 Changed 10 years ago by gm

  • Owner changed from NEMO team to gm

comment:2 Changed 10 years ago by gm

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

This has been taken into account in the update of the CORE bulk introduced in the branch : 2014/dev_CNRS0_blk_core​

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