目的

北半球DJFの高度場バイアス(おそらくは5.5bあたりから出始めた)を直す

できるだけチューニングで直す

• AGCM5.7b (020917版) T42L20 std (no matsiro, aerosol)
• 北大SR8000で4ノード並列
• パラメタは小倉版std
• 4年積分のうち, 後半3年分を気候値とする

• STD
• run01: reduced (increased) land snow (sea ice) albedo --> no change
• run02: waste
• run03: same as std (store rad. heating)
• run04: same as std (check rad. heating)
• run05: remove sfc. up. rad. cooling over Greenland
• run06: non-local off
• run07: for moderate v.diffusion even under stable strat.: dfhmin=2.5, for higher thermal conductivity -> larger GFLUX: DFG=4 & ZASN=0.1 for cont.ice (LANDPARA), DFSNOW=0.8 for large downward sfc. longwave: ALBSNW=0.2 (IR) pradm.F DO 1100 modify
• run08: MCA instead A-S
• run09: Kuo, with b-paramater 0.88 and 0.91 (severer condition)
• run10: A-S, rhbcrt=0.9 (for sharp ITCZ) -> was not very good
• run11: A-S, rhbcrt=0.9, rhmcrt=0.6; LSC, prctau=10800; VDF, dfhmin=0.75 [best, as of 11/21/02]
• run12: A-S, rhbcrt=0.9, fmax=1.5; LSC, prctau=10800, dqrat=0.15, dqrmax=1.5; VDF, dfhmin=0.75
• run13: A-S, rhbcrt=0.9; LSC, prctau=21600; VDF, dfhmin=0.75, remove moist Ri effect; BLK, usminh=usmine=2.5, ----------> default: ozone.sanya2, alp=8d-5, ray0 was 10!!
• run14 : A-S, rhbcrt=0.9, rhmcrt=0.8; LSC, prctau=10800; VDF, dfhmin=0.75; ray0=60; original ozone; alp internally set (3.7d-5) [best, as of 11/23/02]
• run15: A-S, rhbcrt=0.9, rhmcrt=0.8; LSC, prctau=10800; VDF, dfhmin=0.75; ray0=60; ozone.sunya2; alp internally set (3.7d-5) ---> slightly bad signal over Atlantic
• run16: A-S, rhbcrt=0.9, rhmcrt=0.8; LSC, prctau=10800; VDF, dfhmin=0.75; ray0=30; original ozone; alp internally set (3.7d-5)
• run17: A-S, rhbcrt=0.9, rhmcrt=0.8; LSC, prctau=10800; VDF, dfhmin=0.75; ray0=60; original ozone; alp=8.d-5

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