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Verification of Time-series Circulation Index

Parameter: Z500 zonal mean 20N-30N Z500 zonal mean 30N-40N Z500 zonal mean 40N-50N Z500 zonal mean 50N-60N SST NINO.1+2 SST NINO.3 SST NINO3.4 SST NINO.4 SST NINO.WEST SST IOBW SST Western Tropical Indian Ocean(WTIO) SST South-eastern Tropical Indian Ocean(SETIO) SST Indian Ocean Dipole(IOD);Dipole Mode Index(DMI) SST Northwest Indian Ocean(WIO) SST Northeast Indian Ocean(EIO) SST Tropical Northern Atlantic(TNA) SST Tropical Southern Atlantic(TSA) SST Tropical Atlantic Dipole(TAD) Rain IOBW Rain Northwest Indian Ocean(WIO) Rain Northeast Indian Ocean(EIO) Rain SAMOI Rain WNP(WNPM) Rain Southeast Asia Monsoon(CI2,SEAsia) Rain Maritime Continent(MC) Rain Date Line(DL) --- Thickness --- T(300-850hPa) calculated from Thickness 30-50N(THICKMID,THMD) T(300-850hPa) calculated from Thickness 30-90N(THICKNH,THEX) T(100-850hPa) calculated from Thickness 25S-25N(THICKTRO;THTR) Initial date: Jan (12/27) Feb (01/31) Mar (02/25) Apr (03/27) May (04/26) Jun (05/31) Jul (06/30) Aug (07/30) Sep (08/29) Oct (09/28) Nov (10/28) Dec (11/27) Lead time (month): 0 1 2 3 4 5 6

Black: analysis
Deep Blue: ensemble mean
Blue: each member(ensemble size=10)

Definition of Circulation Index