Diagnostics

Links below provide an overview of system skill for select surface climate fields using common metrics. Verification datasets used are: NOAA-ERSSTv5 for sea surface temperature; CRU-TS4.0 for surface air temperature and precipitation over land. Refer to Yeager et al. (2018) for details.

Anomaly Correlation Coefficient (ACC)

Top row gives raw ACC; middle row gives ACC difference from persistence; bottom row gives ACC difference from LENS.

Sea Surface Temperature:

Annual Seasonal (JFM) Seasonal (JAS)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)

 

Surface Air Temperature:

Annual Seasonal (DJF) Seasonal (JJA)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)

 

Precipitation:

Annual Seasonal (JFM) Seasonal (JAS)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)
LY1_LY4

LY1_LY4 (detrended)

LY5_LY8

LY5_LY8 (detrended)

LY1-5_LY4-8

LY1-5_LY4-8 (detrended)

LY3-7_LY6-10

LY3-7_LY6-10 (detrended)