AMWG Variability Test Plots

AMWG Variability Diagnostics for Daily Data

Intraseasonal Variability

Daily 200 hPa velocity potential anomalies computed and then averaged
over 5S-5N, 20-70 day bandpass filter then applied. Hovmöller plots.
Bandpass filter response plot
unicon_amip_1deg_A129. Anomalies are relative to the 1979-2005 mean.

1979-1980
1981-1982
1983-1984
1985-1986
1987-1988
1989-1990
1991-1992
1993-1994
1995-1996
1997-1998
1999-2000
2001-2002
2003-2004

Anomalies computed relative to the time period mean.

NCEP Reanalysis CAM3 Amip (T85)
1981-1982 1981-1982
1983-1984 1983-1984
1985-1986 1985-1986
1987-1988 1987-1988
1989-1990 1989-1990
1991-1992 1991-1992
1993-1994 1993-1994
1995-1996

1997-1998

1999-2000

Madden-Julian Oscillation
Time series of daily 200 hPa zonal wind averaged over 10N-10S.
200 hPa zonal wind bandpass filtered for 20-100 day period.
MJO Index defined as the running variance of the bandpass filtered data.

unicon_amip_1deg_A129
NCEP Reanalysis
CAM3 Amip (T85)

Histograms
Histograms of daily precipitation rate for the Tropics and NH Extratropics.

unicon_amip_1deg_A129
NCEP Reanalysis
CAM3 Amip (T85)

EOF analysis
EOF analysis 30S to 30N (lat-lon map, time series)

PRECT summer unicon_amip_1deg_A129 PRECT summer unicon_amip_1deg_A129
PRECT summer TRMM PRECT summer TRMM
PRECT winter unicon_amip_1deg_A129 PRECT winter unicon_amip_1deg_A129
PRECT winter TRMM PRECT winter TRMM
FLUT summer unicon_amip_1deg_A129 FLUT summer unicon_amip_1deg_A129
FLUT summer ERA FLUT summer ERA
FLUT winter unicon_amip_1deg_A129 FLUT winter unicon_amip_1deg_A129
FLUT winter ERA FLUT winter ERA
U850 summer unicon_amip_1deg_A129 U850 summer unicon_amip_1deg_A129
U850 summer ERA U850 summer ERA
U850 winter unicon_amip_1deg_A129 U850 winter unicon_amip_1deg_A129
U850 winter ERA U850 winter ERA
U200 summer unicon_amip_1deg_A129 U200 summer unicon_amip_1deg_A129
U200 summer ERA U200 summer ERA
U200 winter unicon_amip_1deg_A129 U200 winter unicon_amip_1deg_A129
U200 winter ERA U200 winter ERA
V200 summer unicon_amip_1deg_A129 V200 summer unicon_amip_1deg_A129
V200 summer ERA V200 summer ERA
V200 winter unicon_amip_1deg_A129 V200 winter unicon_amip_1deg_A129
V200 winter ERA V200 winter ERA

lag-cross-correlations
The climatological cross correlation plots (unicon_amip_1deg_A129 vs obs)

lag lat lon summer unicon_amip_1deg_A129 lag lat lon summer ERA
lag lat lon winter unicon_amip_1deg_A129 lag lat lon winter ERA
lag lat lon annual unicon_amip_1deg_A129 lag lat lon annual ERA

wavenumber - frequency spectra
The wavenumber - frequency spectra plots (unicon_amip_1deg_A129 vs obs)

PRECT summer unicon_amip_1deg_A129 PRECT summer TRMM
PRECT winter unicon_amip_1deg_A129 PRECT winter TRMM
FLUT summer unicon_amip_1deg_A129 FLUT summer ERA
FLUT winter unicon_amip_1deg_A129 FLUT winter ERA
U850 summer unicon_amip_1deg_A129 U850 summer ERA
U850 winter unicon_amip_1deg_A129 U850 winter ERA
V850 summer unicon_amip_1deg_A129 V850 summer ERA
V850 winter unicon_amip_1deg_A129 V850 winter ERA
U200 summer unicon_amip_1deg_A129 U200 summer ERA
U200 winter unicon_amip_1deg_A129 U200 winter ERA
V200 summer unicon_amip_1deg_A129 V200 summer ERA
V200 winter unicon_amip_1deg_A129 V200 winter ERA

composite life cycles
The composite life cycles (unicon_amip_1deg_A129 vs obs)

summer unicon_amip_1deg_A129 summer ERA
winter unicon_amip_1deg_A129 winter ERA

NCEP Reanalysis	CAM3 Amip (T85)
1981-1982	1981-1982
1983-1984	1983-1984
1985-1986	1985-1986
1987-1988	1987-1988
1989-1990	1989-1990
1991-1992	1991-1992
1993-1994	1993-1994
1995-1996
1997-1998
1999-2000

PRECT summer unicon_amip_1deg_A129	PRECT summer unicon_amip_1deg_A129
PRECT summer TRMM	PRECT summer TRMM
PRECT winter unicon_amip_1deg_A129	PRECT winter unicon_amip_1deg_A129
PRECT winter TRMM	PRECT winter TRMM
FLUT summer unicon_amip_1deg_A129	FLUT summer unicon_amip_1deg_A129
FLUT summer ERA	FLUT summer ERA
FLUT winter unicon_amip_1deg_A129	FLUT winter unicon_amip_1deg_A129
FLUT winter ERA	FLUT winter ERA
U850 summer unicon_amip_1deg_A129	U850 summer unicon_amip_1deg_A129
U850 summer ERA	U850 summer ERA
U850 winter unicon_amip_1deg_A129	U850 winter unicon_amip_1deg_A129
U850 winter ERA	U850 winter ERA
U200 summer unicon_amip_1deg_A129	U200 summer unicon_amip_1deg_A129
U200 summer ERA	U200 summer ERA
U200 winter unicon_amip_1deg_A129	U200 winter unicon_amip_1deg_A129
U200 winter ERA	U200 winter ERA
V200 summer unicon_amip_1deg_A129	V200 summer unicon_amip_1deg_A129
V200 summer ERA	V200 summer ERA
V200 winter unicon_amip_1deg_A129	V200 winter unicon_amip_1deg_A129
V200 winter ERA	V200 winter ERA

lag lat lon summer unicon_amip_1deg_A129	lag lat lon summer ERA
lag lat lon winter unicon_amip_1deg_A129	lag lat lon winter ERA
lag lat lon annual unicon_amip_1deg_A129	lag lat lon annual ERA