Fig. 1: A large phytoplankton bloom in the eastern Weddell Gyre.
From: Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
a Sentinel satellite image of the open ocean phytoplankton bloom on March 8, 2019. The positions of underway water samples are indicated where measurements of phytoplankton physiology and microscopic counts and identification of phytoplankton species were carried out (inverted black triangles). Also indicated are the 100 m depth integrated POC (g m−2) for each glider profile and the locations of Maud Rise, Astrid Ridge and the Fimbul Ice Shelf. b Upper 100 m integrated POC (g m−2) and Chlorophyll a (mg m−2) from each glider profile, c contoured Chl a (mg m−3), d contoured POC (mg m−3), and e contoured temperature (°C) for the glider transect. In panels c–e, the black line with crosses indicates the depth of the surface Mixed Layer.
