Sharing the results of high- resolution ocean general circulation model under a multi-discipline frame work-a review of OFES activities Yukio Masumoto

Outline Introduction Model description OFES runs and outputs Analyses of physical aspect using OFES results Analyses of biogeochemical/ecosystem aspects using OFES results

Introduction OFES (OGCM for the Earth Simulator) – Project of Japan Agency for Marine-Earth Science and Technology (JAMSTEC) – Consider the limitation of high-resolution modeling effort – Share the invaluable output among physical, geochemical and ecosystem research

Model description Modular Ocean Model version 3 (MOM3) developed at GFDL/NOAA 3D primitive eq. in spherical coordinates under Boussinesq and hydrostatic approximation 75°S to 75°N, 54 vertical level, etopo2 K-profile parameterization(Large et al. 1994) CFC- concerned

Model runs and outputs 50-year climatological runs applied NCEP/NCAR reanalysis mean from After spin-up, the model is driven by daily mean wind stresses obtain from NCEP/NCAR reanalysis for a period from

Analyses of physical aspects using OFES result

Zonally coherent zonal current structures

Frontal structure in the Kuroshio/Oyashio Extension

Decadal variations in North Pacific Ocean

Dynamics of recirculation gyre in the Kuroshio extension region

Responses of surface currents to the winds near Hawaiian islands.

Decadal variations in SSH in the South Pacific Ocean

Heat budget in the upper mixed-layer in the southeastern Indian Ocean.

Effects of eddy variability on the circulation in the northwestern Atlantic Ocean

Structure of cyclonic eddy in the Antarctic Divergence off Adelie Coast

Deep mixed-layer depth in formation regions of subantarctic mode water in the southern ocean

Simulated CFC-11 distribution in the Weddell Sea