Fig. 2: Chlorophyll-a (Chl-a) anomalies of marine heatwaves (MHWs) and marine cold spells (MCSs) in the Southern Ocean from 1998 to 2023.
From: Extreme temperature events reshuffle the ecological landscape of the Southern Ocean

a, c Mean intensity of MHWs and Chl-a anomaly percentage during MHWs. b, d Corresponding metrics for MCSs. e Percentage area of Chl-a anomalies in the subtropical Zone (STZ), Sub-Antarctic Zone (SAZ), and Permanently Open Ocean Zone (POOZ) during MHWs and MCSs.