Fig. 5: Seasonal variation of re-forecast 200 hPa zonal wind trend errors. | npj Climate and Atmospheric Science

Fig. 5: Seasonal variation of re-forecast 200 hPa zonal wind trend errors.

From: Climate model trend errors are evident in seasonal forecasts at short leads

Fig. 5

Multi-model mean 200 hPa zonal wind trend error relative to ERA5 (1993–2016) for four different initialisations (September, December, March, June) averaged over two-season leads for verification in a DJF b MAM c JJA and d SON. Positive values indicate that the model trend is more positive (or less negative) than ERA5, and vice versa. Hatching indicates statistical significance at the 5% level.

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