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ARSC & IARC Report

ARSC & IARC Report. Juanxiong He 1,2 Greg Newby 1 1. Arctic Region Supercomputing Center, 2. International Arctic Research Center. DOD/RACM Workshop, Jun 16-17 2009. Outline. Summary of the works since last December Next step. Summary of the works since last December.

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ARSC & IARC Report

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  1. ARSC & IARC Report Juanxiong He1,2 Greg Newby1 1. Arctic Region Supercomputing Center, 2. International Arctic Research Center DOD/RACM Workshop, Jun 16-17 2009

  2. Outline • Summary of the works since last December • Next step

  3. Summary of the works since last December • Merge ESMF of WRF and ESMF of CCSM4 • Global WRF active coupling with POP2, CICE, CLM • Regional WRF coupling with data model • Regional WRF coupling with POP2, CICE and sland model • Code for hybrid coupling ccsm4_0_racm02

  4. Merge ESMF of WRF and ESMF of CCSM4 • Previous method: Rename each module/subroutine of ESMF of WRF and ESMF subroutines called by seq_ccsm_drv.F90 • Resolve the differences of both EMSF. Add some subroutines and structures into the ESMF of CCSM4 to simulate the functions of the ESMF of WRF.

  5. Global WRF full active coupling with POP2, CICE, CLM • Setting Global WRF 120x60, POP and CICE 100x116 CLM 46x72 start at 2001-01-01_00:00:00 • Status Run as long as three months and crashes at the fourth month

  6. Sea level Pressure (January) Observation Coupling WRF alone

  7. Sea level Pressure (February) Observation Coupling WRF alone

  8. Sea level Pressure (March) Observation Coupling WRF alone

  9. Result • Coupling WRF works fine. • The performance of WRF in the full coupling relates to the single WRF strongly. • In this simulation, the coupling and the single run aren’t very good in Northern high latitude.

  10. Regional WRF coupling with data model • Setting: wr50a_wr50a (276x206, time step =2min) WRF, DLND, DOCN, DICE start at 2001-01-01_00:00:00 • Status: 6 days at least, fine, maybe as long as we wish

  11. Regional WRF coupling with data model Atmosphere domain

  12. Regional WRF coupling with data model Sea level pressure at 2001-01-06_00:00:00 Surface temperature at 2001-01-06_00:00:00

  13. Setting: wr50a_ar9v2 (276x206_1380x1080) WRF, SLND, POP2, CICE • start at 2001-01-01_00:00:00 • Status: crash after 6 hours integration Regional WRF coupling with POP2, CICE and sland model

  14. Regional WRF coupling with POP2, CICE and sland model Ocean domain

  15. Regional WRF coupling with POP2, CICE and sland model ar9v2 ar9v1 Sea surface temperature at 2001-01-01_06:00:00

  16. Regional WRF coupling with POP2, CICE and sland model Sea level pressure at 2001-01-01_06:00:00 Air temperature at the bottom level at 2001-01-01_06:00:00

  17. Regional WRF coupling with POP2, CICE and sland model Tony has regenerated the remapping file WRF domain need be verified further surface temperature from coupler at 2001-01-01_06:00:00

  18. Benchmark and resource • Benchmark(wr50a_ar9v2) CPL=64, WRF=25,SLND=25,CICE=64 POP2=64,SGLC=1 wall time: 3min / simulation time: 1hr • Resource 32 CPU may be the minimum to run wr50a_ar9v2. Tony suggested 64 CPU and more are better to run wr50a_ar9v2 .

  19. Code for hybrid coupling Real coupling region WRF surface scheme or data model

  20. Code for hybrid coupling • New option Config_flags%hybrid_coupling • New code module_phy_init.F, module_first_rk_step_part1.F start_em.F • Revise Code Config_flags%hybrid_coupling Module_hybrid_driver.F, Module_hybrid_sfclay.F Module_hybrid_sfcdiags.F, Module_hybrid_noahdrv.F Module_hybrid_slab.F

  21. Next Step • WRF, VIC, POP2 and CICE full coupling • Improve the simulation and performance

  22. Thank you!

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