Spread and signal to noise ratio
Spread and signal to noise ratio (SNR) are based on forecasts from 1981 to 2006.
The spread is defined as the inter-member standard deviation of the 15 members. Signal to noise
ratio is taken as the ratio of interannual standard deviation of 15-member ensemble mean to the spread.
SSTs (regional average)
Variable |
Monthly |
Seasonal |
spread |
signal to noise ratio |
spread |
signal to noise ratio |
Nino1+2 |
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Nino3 |
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Nino34 |
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Nino4 |
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MDR |
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Seasonal spatial maps
Variable\Start month |
spread |
signal to noise ratio |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
dec |
SST |
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SSH |
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z200 |
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z700 |
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u200-u850 |
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Prec |
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T2m |
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NA Prec |
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NA T2m |
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Equatorial Ocean Temp |
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Monthly spatial maps
Variable\Start month |
spread |
signal to noise ratio |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
dec |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
dec |
SST |
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SSH |
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z200 |
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z700 |
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u200-u850 |
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Prec |
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T2m |
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NA Prec |
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NA T2m |
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Equatorial Ocean Temp |
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