Fig. 1: Locations of the Biogeochemical-Argo (BGC-Argo) floats and their positions relative to the eddies.
From: Efficient biological carbon export to the mesopelagic ocean induced by submesoscale fronts
a The trajectories of BGC-Argo floats (WMO numbers 2902753 and 2902756) in purple and the trajectories of the center of mesoscale eddies (identified as cyclonic eddy 1 (CE 1) and cyclonic eddy 2 (CE 2)) in green. The gray lines indicate the eddy radius. The background color is the mean eddy kinetic energy (EKE (m2 s-2)) from 1993 to 2020. Black dots and yellow pentagrams represent in-situ sampling locations of nitrate (NO3-) and particulate organic carbon (POC), respectively. b Along-track sea level anomaly (SLA; m) in orange and the relative distance from the center of CE 1 normalized by eddy radius, r/R, in black for float 2902753. The blue and orange areas correspond to the intensifying and decaying stages of the submesoscale front, respectively. c The same as b but for float 2902756 in CE 2. In c, between the two vertical dashed lines, the float was at a relatively fixed r/R ~ 0.7. The blue and orange areas correspond to the intensifying and mature stages of CE 2. Source data are provided as a Source Data file.
