Fig. 3: Role of constructive interference of IOD and ENSO in WCIO precipitation anomalies. | npj Climate and Atmospheric Science

Fig. 3: Role of constructive interference of IOD and ENSO in WCIO precipitation anomalies.

From: Predictability of Indian Ocean precipitation and its North Atlantic teleconnections during early winter

Fig. 3

a Observed October IOD index (based on SST) lag Correlation Coefficient (CC) with the western-central Indian Ocean (WCIO) precipitation anomalies in 2-months overlapping season for the period 1981–2019 (red solid line with star). Same but with linearly independent October-IOD (PIOD)noNiño34 are shown in black solid line (with circle); Corresponding lines for ECMWF-SEAS5 are shown in dashed lines; (b) Same as panel (a), except using ND (November-December) Niño3.4 SST index (red solid and dashed lines) and linearly independent ND-Niño34 (PNiño34)noIOD (black solid and dashed lines). Blue line indicates the statistical significance of the CC at 95% confidence level.

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