CMAP
GPCP
TRMM
20
20
20
10
10
10
0
0
0
−10
−10
−10
−20
−20
−20
J MM J S N J MM J S N
J MM J S N J MM J S N
NCEP1
J MM J S N J MM J S N
NCEP2
ERA40
20
20
20
10
10
10
0
0
0
−10
−10
−10
−20
−20
−20
J MM J S N J MM J S N
J MM J S N J MM J S N
J MM J S N J MM J S N
CCM3
CAM2
ECHAM4.5
20
20
20
10
10
10
0
0
0
−10
−10
−10
−20
−20
−20
J MM J S N J MM J S N
J MM J S N J MM J S N
J MM J S N J MM J S N
NSIPP
GFDL_AM2
GFDL_R30
20
20
20
10
10
10
0
0
0
−10
−10
−10
−20
−20
−20
J MM J S N J MM J S N
J MM J S N J MM J S N
J MM J S N J MM J S N