Validation of OCC-20
coupled model



Performances/Description

NEC SX8R

OCC17 atlas
 OCC73
Low Resolution
CRAY-XD1
Atlas

 HRC03
High Resolution
NEC SX8R
Atlas
Elapsed (HR: 25 to 70min/month without post-processing) 11 days
 8 days
Validation period 5 of 30 years 5 of 15 years
ATMOSPHERE : ARPEGE V4, t63 grid

Top of atmosphere balance (W/m2) 2.25
 2.05
Outgoing flux (OLR) (W/m2) rlut -233.7
 -238.1
Incoming flux  (W/m2) nsft 236.0
 240.1
Total Heat Flux at Surface (W/m2) 0.60
 0.70
Cloud cover (%) clt 67.8
 62.1
Total precipitations (mm/j) pr 3.15
 3.19
E-P-R-C over sea  (Sv) -0.056
 -0.14
Z500 (m) zg 5667.
 5617.
OCEAN : OPA 9 (NEMO), ORCA2 grid

Flux balance at ocean surface (W/m2) (sohefldo) 1.63 -0.65
E-P-R-C (Sv) with snow-ice melting effects (sowaflup) -0.05 0.92
LIM ice model

Ice volume Antarctic (10e12 Km3) 0.31 1.48
Ice volume Arctic (10e12 Km3) 9.75 54.7
Ice extend Antarctic (10e12 Km2) 1.58 14.3
Ice extend Arctic (10e12 Km2) 12.0 17.9
Ice production Antarctic (10e9 Km3)
 -0.13 -0.1
Ice production Arctic (10e9 Km3) 0.11 -0.02