Fig. 2: The profiles to illustrate the variations of El Niño Southern Oscillation (ENSO), the Indian Ocean Dipole (IOD), and multiple geochemical proxies in the three sediment cores from the 1920s to 2010s. | Nature Communications

Fig. 2: The profiles to illustrate the variations of El Niño Southern Oscillation (ENSO), the Indian Ocean Dipole (IOD), and multiple geochemical proxies in the three sediment cores from the 1920s to 2010s.

From: Wildfires enhance phytoplankton production in tropical oceans

Fig. 2

a Low-frequency signals of dipole mode index (DMI) and Niño 3.4 index showing the variations of IOD and ENSO, respectively. b Core 185: total organic carbon (TOC) and total nitrogen (TN). c Core 185: biogenic silicate (BSi) and black carbon (BC). d Core 200: TOC and TN. e Core 200: BSi and BC. f Core KGR: TOC and TN. g Core KGR: BSi and BC. Blue lines represent the shift changes assessed by sequential t test analysis of regime shift and numbers on lines were regime shift index (RSI) to show shifting magnitude.

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