All the data used to train and validate CANYON were measurements recorded in the GLODAPv2 database, except the p CO 2 estimates that we calculated from AT and CT measurements using the R package ...

2.2 Sample collection Water samples were collected during the DY-52 and DY-78 expeditions aboard the R/V Da Yang 1 in April 2019 and R/V Da Yang in 2023, respectively. Three full-depth seawater ...