Hypoxia observations in the East China Sea inner shelf in 2020

A cruise on board the R/V Runjiang I from 17 to 30 August 2020 was conducted to investigate hypoxia in 2020 over the East China Sea inner shelf. Six cross-shelf sections on the East China Sea shelf were surveyed in Leg 1 and an additional four sections were revisited in Leg 2. Water samples were collected using Niskin bottles mounted onto a Rosette sampling assembly. Biogeochemical data (nutrients, oxygen, dissolved inorganic carbon) was measured using instruments presented in Metadata file.