Pacific decadal oscillation influences tropical oxygen minimum zone extent and obscures anthropogenic changes.

Mathieu A. Poupon (1) , Laure Resplandy (1) , Marina Lévy (2) , Laurent Bopp (3)

1 Princeton University
2 PROTEO - Processus et interactions de fine échelle océanique
3 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)

• PDO modulates tropical Pacific oxygen content and OMZ volume on decadal time scales. • The PDO-induced variations are of the same order of magnitude as the anthropogenic deoxygenation signal. • Currently available data are too sparse to resolve and isolate the PDO-induced and anthropogenic signals.

Domains: Environmental Sciences

Mathieu A. Poupon, Laure Resplandy, Marina Lévy, Laurent Bopp. Pacific decadal oscillation influences tropical oxygen minimum zone extent and obscures anthropogenic changes.. 2022. ⟨hal-03869552⟩