Opened 6 years ago

Closed 3 years ago

Last modified 3 years ago

#1348 closed Task (fixed)

dev CNRS-0 --- bulk core: simplification and optimization

Reported by: gm Owned by: nemo
Priority: low Milestone:
Component: OCE Version: release-3.6
Severity: Keywords: CORE SBC
Cc: Review:
MP ready?:
Progress:

Description

Purpose: simplification and optimization of the CORE bulk formulae (sbcblk_core.F90)

The CORE bulk formulae has been modified by Laurent Brodeau (brodeau@…) in the following way:

  • removed "ln_2m" and "ln_bulk2z" from namelist (&namsbc_core), not really needed information, rn_zqt and rn_zu are enough!
  • ONLY 1 routine for computing bulk transfer coefficients: TURB_CORE_2Z now handles both cases zt=zu and zt/=zu
    ⇒ removed routine TURB_CORE_1Z
  • ONLY one call to TURB_CORE_2Z
  •  improved and slightly optimized TURB_CORE_2Z by decreasing the number of 2D allocated arrays and number of operations
  • better first guess of stability by checking air-sea difference of virtual temperature rather than temperature difference only…
  • added function "cd_neutral_10m" that uses the improved parametrization of Large & Yeager 2008, including the drag coefficient reduction for Cyclone conditions (i.e. V10m ≥ 33m/s).

The new sbcblk_core.F90 has been tested in both ORCA2_LIM2 and ORCA1_LIM2. Not significant changes have been found (but obviously for analytical tropical cyclones).

The associated branch is 2014/dev_CNRS0_blk_core

Commit History (1)

ChangesetAuthorTimeChangeLog
4675gm2014-06-18T17:46:53+02:00

#1348 CORE bulk simplification and optimization: changes in sbcblk_core and namelist_ref

Change History (10)

comment:1 Changed 6 years ago by gm

associated wiki page : 1348_CNRS0_blk_core

comment:2 Changed 4 years ago by nicolasmartin

  • Keywords core added; CORE removed

comment:3 Changed 4 years ago by nicolasmartin

  • Keywords nemo_v3_6* added

comment:4 Changed 4 years ago by nicolasmartin

  • Keywords CORE nemo_v3_6_alpha added; core removed

comment:5 Changed 4 years ago by nicolasmartin

  • Keywords nemo_v3_6_alpha removed

comment:6 Changed 4 years ago by nicolasmartin

  • Keywords SBC added; bulk removed

comment:7 Changed 3 years ago by lovato

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

The changes described in this ticket are included in NEMO V3.6_STABLE.

comment:8 Changed 3 years ago by nemo

  • Type changed from Development to Task

Remove 'Development' type

comment:9 Changed 3 years ago by nemo

  • Keywords release-3.6* added; nemo_v3_6* removed

comment:10 Changed 3 years ago by nemo

  • Keywords release-3.6* removed
Note: See TracTickets for help on using tickets.