Skip to main content
. 2017 Jun 7;3(6):e1602263. doi: 10.1126/sciadv.1602263

Fig. 4. SPI and storm track in La Niña and El Niño years from 1728 to 1995 CE.

Fig. 4

Composites of reconstructed SPI (37) (A and B) and yearly storm tracks smoothed with a robust loess filter (C and D) during La Niña (A and C) and El Niño (B and D) years, determined using the annual NINO3.4 SST reconstructed from tropical Pacific coral and ice core records (30). Years were characterized as El Niño or La Niña based on ±1 SD from mean conditions over the annual period beginning the January before the reconstructed storm-track cool season (for example, storm track from October 1727 to March 1728 associated with NINO3.4 from January to December 1727).