Figure 2

Convergent features near penguin foraging. (a) Hourly surface current map, January 27, 08:00 GMT 2015. The HFR sites located at Palmer Station (green triangle) and the Wauwermans (green diamond) and Joubin (green square) island groups are also shown. (b) Map showing the distribution of particles on January 27, 08:00 GMT (black dots) overlaid on the particle density metric (number of particles within each 1 × 1 km cell minus the median across all cells). The location of penguins is also shown (red circles). The maps were generated by the corresponding author J.K. using Matlab version R2016b (www.mathworks.com).